Solar Energy最新文献_第9页

Simulation study on the impact of inorganic carrier transport layers on perovskite solar cell performance

IF 6 2区工程技术 Q2 ENERGY & FUELS

Solar Energy

Pub Date : 2025-01-28 DOI: 10.1016/j.solener.2025.113291

Jianghao Liu , Maiwulangjiang Adili , Hao Pan , Guofu Hou , Ying Zhao , Qian Huang , Xiaodan Zhang

Perovskite solar cells (PSC) are currently at the forefront of photovoltaic research due to their remarkable properties, including high absorption coefficients, low exciton binding energies, and high carrier mobilities. To enhance device performance, it is crucial to consider not only the defect and interface states but also the material properties and energy level alignment of each functional layer. This study utilizes wx-AMPS simulations to explore how different carrier transport layers, characterized by varying energy band structures and carrier mobilities, affect PSC performance. The simulation parameters included a temperature of 300 K, a 1.5 AM light source, an interface recombination rate of 10⁷ cm⁻², and an assisted trap tunneling mode. The results demonstrate that reducing the barrier height and increasing carrier mobility can significantly improve cell efficiency. Optimized simulations achieved a PSC efficiency of 28.95 %, with a fill factor of 89.44 %, a short-circuit current density of 28.02 mA/cm², and an open-circuit voltage of 1.15 V. These findings highlight the potential of using inorganic electron and hole transport layers with appropriate energy band matching and carrier mobility to develop high-efficiency and stable PSCs.

{"title":"Simulation study on the impact of inorganic carrier transport layers on perovskite solar cell performance","authors":"Jianghao Liu , Maiwulangjiang Adili , Hao Pan , Guofu Hou , Ying Zhao , Qian Huang , Xiaodan Zhang","doi":"10.1016/j.solener.2025.113291","DOIUrl":"10.1016/j.solener.2025.113291","url":null,"abstract":"<div><div>Perovskite solar cells (PSC) are currently at the forefront of photovoltaic research due to their remarkable properties, including high absorption coefficients, low exciton binding energies, and high carrier mobilities. To enhance device performance, it is crucial to consider not only the defect and interface states but also the material properties and energy level alignment of each functional layer. This study utilizes wx-AMPS simulations to explore how different carrier transport layers, characterized by varying energy band structures and carrier mobilities, affect PSC performance. The simulation parameters included a temperature of 300 K, a 1.5 AM light source, an interface recombination rate of 10<sup>7</sup> cm<sup>−2</sup>, and an assisted trap tunneling mode. The results demonstrate that reducing the barrier height and increasing carrier mobility can significantly improve cell efficiency. Optimized simulations achieved a PSC efficiency of 28.95 %, with a fill factor of 89.44 %, a short-circuit current density of 28.02 mA/cm<sup>2</sup>, and an open-circuit voltage of 1.15 V. These findings highlight the potential of using inorganic electron and hole transport layers with appropriate energy band matching and carrier mobility to develop high-efficiency and stable PSCs.</div></div>","PeriodicalId":428,"journal":{"name":"Solar Energy","volume":"288 ","pages":"Article 113291"},"PeriodicalIF":6.0,"publicationDate":"2025-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143162625","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Theoretical studies on a dual-function system integrating solar heating and radiative cooling for year-round energy saving

IF 6 2区工程技术 Q2 ENERGY & FUELS

Solar Energy

Pub Date : 2025-01-27 DOI: 10.1016/j.solener.2025.113293

Jiangfeng Guo , Zhiwei Wu , Fenghua Zhang , Hongjie Yu , Caifu Qian

The Sun (6000 K) and outer space (3 K) are huge reservoirs of heat and cold sources that are sustainable and clean. How to fully utilise these two types of energy throughout the year to address the energy crisis and climate change remains a challenge. In this study, a dual-function system integrating solar heating (SH) and radiative cooling (RC) technologies is proposed, which has four operating modes: heat storage, heating air supply, cold storage and cooling air supply. In the SH and heat storage modes, Graphene and Ag-based nanofluid is adopted as the medium, its heat is transferred to the air through a heat exchanger. In the cold storage and cooling air supply modes, an optimised multi-layer film structure with high emissivity in the atmospheric window is employed, and water and air are employed as the mediums. Through the mutual adjustment of four modes, the system can achieve year-round operation. The system with a panel area of 100 m² has a monthly average equivalent electrical energy of 16,590 kW∙h in SH mode and over 8200 kW∙h in RC mode, demonstrating enormous potential application. The temperature of mediums can be easily adjusted by changing their mass flow rate, and the required temperature of supplying air is convenient to adjust by only changing its mass flow rate. This study is of great significance for deepening the understanding of SH and RC technologies and dealing with energy and environmental issues.

{"title":"Theoretical studies on a dual-function system integrating solar heating and radiative cooling for year-round energy saving","authors":"Jiangfeng Guo , Zhiwei Wu , Fenghua Zhang , Hongjie Yu , Caifu Qian","doi":"10.1016/j.solener.2025.113293","DOIUrl":"10.1016/j.solener.2025.113293","url":null,"abstract":"<div><div>The Sun (6000 K) and outer space (3 K) are huge reservoirs of heat and cold sources that are sustainable and clean. How to fully utilise these two types of energy throughout the year to address the energy crisis and climate change remains a challenge. In this study, a dual-function system integrating solar heating (SH) and radiative cooling (RC) technologies is proposed, which has four operating modes: heat storage, heating air supply, cold storage and cooling air supply. In the SH and heat storage modes, Graphene and Ag-based nanofluid is adopted as the medium, its heat is transferred to the air through a heat exchanger. In the cold storage and cooling air supply modes, an optimised multi-layer film structure with high emissivity in the atmospheric window is employed, and water and air are employed as the mediums. Through the mutual adjustment of four modes, the system can achieve year-round operation. The system with a panel area of 100 m<sup>2</sup> has a monthly average equivalent electrical energy of 16,590 kW∙h in SH mode and over 8200 kW∙h in RC mode, demonstrating enormous potential application. The temperature of mediums can be easily adjusted by changing their mass flow rate, and the required temperature of supplying air is convenient to adjust by only changing its mass flow rate. This study is of great significance for deepening the understanding of SH and RC technologies and dealing with energy and environmental issues.</div></div>","PeriodicalId":428,"journal":{"name":"Solar Energy","volume":"288 ","pages":"Article 113293"},"PeriodicalIF":6.0,"publicationDate":"2025-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143162257","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Thermo-responsive hydrogel-based building envelopes for building energy-saving

IF 6 2区工程技术 Q2 ENERGY & FUELS

Solar Energy

Pub Date : 2025-01-27 DOI: 10.1016/j.solener.2025.113306

Bin Zhao , Kegui Lu , Wenshuo Zhang , Cheng Jin , Qingdong Xuan , Gang Pei

Transparent windows and opaque walls/roofs are two kinds of important building envelopes that significantly affect building energy consumption. Herein, a smart window with switchable solar transmittance and a wall/roof with dynamic solar absorptivity are proposed and fabricated by introducing the hydrogel that can modulate optical properties based on temperature stimulus. Optical measurement shows that the smart window can change its spectral transmittance at the solar radiation band between 0 (hot state) to 0.78 (cold state), while the solar absorptivity of the smart wall/roof varies between 0.29 (hot state) to 0.95 (cold state), exhibiting potential for self-adaptive thermal management for buildings. The experimental demonstration proves that the proposed smart window and wall/roof can reduce the indoor air temperature by 2.3 °C and 7.5 °C. In addition, building energy consumption is predicted, which reveals that energy consumption can be reduced by 10.79 %–34.28 % after the implementation of the smart window and wall/roof in buildings at Phoenix, Singapore, Nairobi, Cairo, and Hong Kong, indicating the proposed temperature-responsive spectrum modulation strategy for the window and wall/roof contributes to building energy saving.

{"title":"Thermo-responsive hydrogel-based building envelopes for building energy-saving","authors":"Bin Zhao , Kegui Lu , Wenshuo Zhang , Cheng Jin , Qingdong Xuan , Gang Pei","doi":"10.1016/j.solener.2025.113306","DOIUrl":"10.1016/j.solener.2025.113306","url":null,"abstract":"<div><div>Transparent windows and opaque walls/roofs are two kinds of important building envelopes that significantly affect building energy consumption. Herein, a smart window with switchable solar transmittance and a wall/roof with dynamic solar absorptivity are proposed and fabricated by introducing the hydrogel that can modulate optical properties based on temperature stimulus. Optical measurement shows that the smart window can change its spectral transmittance at the solar radiation band between 0 (hot state) to 0.78 (cold state), while the solar absorptivity of the smart wall/roof varies between 0.29 (hot state) to 0.95 (cold state), exhibiting potential for self-adaptive thermal management for buildings. The experimental demonstration proves that the proposed smart window and wall/roof can reduce the indoor air temperature by 2.3 °C and 7.5 °C. In addition, building energy consumption is predicted, which reveals that energy consumption can be reduced by 10.79 %–34.28 % after the implementation of the smart window and wall/roof in buildings at Phoenix, Singapore, Nairobi, Cairo, and Hong Kong, indicating the proposed temperature-responsive spectrum modulation strategy for the window and wall/roof contributes to building energy saving.</div></div>","PeriodicalId":428,"journal":{"name":"Solar Energy","volume":"288 ","pages":"Article 113306"},"PeriodicalIF":6.0,"publicationDate":"2025-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143162221","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Synthesis of mixed bismuth halide perovskites M3Bi2I6Br3 (M = Cs, K) encapsulated in floating substrates with high efficiencies for visible-light-driven CO2 and H2O conversion

IF 6 2区工程技术 Q2 ENERGY & FUELS

Solar Energy

Pub Date : 2025-01-27 DOI: 10.1016/j.solener.2025.113296

Andrea A. Cepeda-Aguirre , Boris I. Kharisov , Leticia M. Torres-Martínez , Edith Luévano-Hipólito

The constant research for sustainable alternatives to address the global energy and environmental crisis has led to a renewed focus on solar energy as a clean and renewable energy source. Due to their unique optical and electronic properties, mixed halide perovskites offer a promising platform for CO₂ conversion. Therefore, this work proposed the synthesis of mixed halide perovskites based on M₃Bi₂I₆Br₃ (M = Cs, K) for visible-light-driven CO₂ and H₂O conversion. The mixed perovskites were immobilized in floated (porous) substrates for easier application and easy recovery of the materials. The mixed perovskites exhibited better crystallinity, higher light absorption, and lower recombination of the photogenerated charges than the reference materials (M₃Bi₂I₉). These properties promoted higher CO₂ and H₂O conversion efficiencies to generate HCOOH (3,170 µmol) and H₂ (160 µmol), respectively. Although the efficiency of Cs₃Bi₂I₆Br₃ was higher than that of K₃Bi₂I₆Br₃, it was possible to reach the efficiency for CO₂ reduction of Cs₃Bi₂I₉. Finally, the formation of a passive layer of BiOX (X = I, Br) on the K₃Bi₂I₆Br₃ surface was demonstrated, which eventually reduced the efficiency of the CO₂ reduction.

{"title":"Synthesis of mixed bismuth halide perovskites M3Bi2I6Br3 (M = Cs, K) encapsulated in floating substrates with high efficiencies for visible-light-driven CO2 and H2O conversion","authors":"Andrea A. Cepeda-Aguirre , Boris I. Kharisov , Leticia M. Torres-Martínez , Edith Luévano-Hipólito","doi":"10.1016/j.solener.2025.113296","DOIUrl":"10.1016/j.solener.2025.113296","url":null,"abstract":"<div><div>The constant research for sustainable alternatives to address the global energy and environmental crisis has led to a renewed focus on solar energy as a clean and renewable energy source. Due to their unique optical and electronic properties, mixed halide perovskites offer a promising platform for CO<sub>2</sub> conversion. Therefore, this work proposed the synthesis of mixed halide perovskites based on M<sub>3</sub>Bi<sub>2</sub>I<sub>6</sub>Br<sub>3</sub> (M = Cs, K) for visible-light-driven CO<sub>2</sub> and H<sub>2</sub>O conversion. The mixed perovskites were immobilized in floated (porous) substrates for easier application and easy recovery of the materials. The mixed perovskites exhibited better crystallinity, higher light absorption, and lower recombination of the photogenerated charges than the reference materials (M<sub>3</sub>Bi<sub>2</sub>I<sub>9</sub>). These properties promoted higher CO<sub>2</sub> and H<sub>2</sub>O conversion efficiencies to generate HCOOH (3,170 µmol) and H<sub>2</sub> (160 µmol), respectively. Although the efficiency of Cs<sub>3</sub>Bi<sub>2</sub>I<sub>6</sub>Br<sub>3</sub> was higher than that of K<sub>3</sub>Bi<sub>2</sub>I<sub>6</sub>Br<sub>3</sub>, it was possible to reach the efficiency for CO<sub>2</sub> reduction of Cs<sub>3</sub>Bi<sub>2</sub>I<sub>9</sub>. Finally, the formation of a passive layer of BiOX (X = I, Br) on the K<sub>3</sub>Bi<sub>2</sub>I<sub>6</sub>Br<sub>3</sub> surface was demonstrated, which eventually reduced the efficiency of the CO<sub>2</sub> reduction.</div></div>","PeriodicalId":428,"journal":{"name":"Solar Energy","volume":"288 ","pages":"Article 113296"},"PeriodicalIF":6.0,"publicationDate":"2025-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143162614","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Deep-learning-based and near real-time solar irradiance map using Himawari-8 satellite imageries

IF 6 2区工程技术 Q2 ENERGY & FUELS

Solar Energy

Pub Date : 2025-01-24 DOI: 10.1016/j.solener.2025.113262

Suwichaya Suwanwimolkul , Natanon Tongamrak , Nuttamon Thungka , Naebboon Hoonchareon , Jitkomut Songsiri

This paper presents an online platform showing Thailand solar irradiance map every 15 min available at https://www.cusolarforecast.com. The methodology for estimating global horizontal irradiance (GHI) across Thailand relies on cloud index extracted from Himawari-8/9 satellite imagery, Ineichen clear-sky model with locally-tuned Linke turbidity, and machine learning models. The methods take clear-sky irradiance, cloud index, re-analyzed GHI and temperature data from the MERRA-2 database, and date-time as inputs for GHI estimation models, including LightGBM, LSTM, Informer, and Transformer. These are benchmarked with the estimate from a commercial service X by evaluation of 15-minute ground GHI data from 53 ground stations over 1.5 years during 2022–2023. The results show that the four models exhibit comparable overall MAE performance to the service X. The best model is LightGBM, with an MAE of 78.58

{W/m}^{2}

and RMSE of 118.97

{W/m}^{2}

, while service X achieves the lowest MAE, RMSE, and MBE in cloudy conditions. Obtaining re-analyzed MERRA-2 data for Thailand is not economically feasible for deployment. When removing these features, the Informer model has a winning performance of 78.67

{W/m}^{2}

in MAE. The obtained performance aligns with existing literature by taking the climate zone and time granularity of data into consideration. As the map shows an estimate of GHI over 93,000 grids with a frequent update, the paper also describes a computational framework for displaying the entire map. It tests the runtime performance of deep learning models in the GHI estimation process.

{"title":"Deep-learning-based and near real-time solar irradiance map using Himawari-8 satellite imageries","authors":"Suwichaya Suwanwimolkul , Natanon Tongamrak , Nuttamon Thungka , Naebboon Hoonchareon , Jitkomut Songsiri","doi":"10.1016/j.solener.2025.113262","DOIUrl":"10.1016/j.solener.2025.113262","url":null,"abstract":"<div><div>This paper presents an online platform showing Thailand solar irradiance map every 15 min available at <span><span>https://www.cusolarforecast.com</span><svg><path></path></svg></span>. The methodology for estimating global horizontal irradiance (GHI) across Thailand relies on cloud index extracted from Himawari-8/9 satellite imagery, Ineichen clear-sky model with locally-tuned Linke turbidity, and machine learning models. The methods take clear-sky irradiance, cloud index, re-analyzed GHI and temperature data from the MERRA-2 database, and date-time as inputs for GHI estimation models, including LightGBM, LSTM, Informer, and Transformer. These are benchmarked with the estimate from a commercial service X by evaluation of 15-minute ground GHI data from 53 ground stations over 1.5 years during 2022–2023. The results show that the four models exhibit comparable overall MAE performance to the service X. The best model is LightGBM, with an MAE of 78.58 <span><math><msup><mrow><mtext>W/m</mtext></mrow><mrow><mn>2</mn></mrow></msup></math></span> and RMSE of 118.97 <span><math><msup><mrow><mtext>W/m</mtext></mrow><mrow><mn>2</mn></mrow></msup></math></span>, while service X achieves the lowest MAE, RMSE, and MBE in cloudy conditions. Obtaining re-analyzed MERRA-2 data for Thailand is not economically feasible for deployment. When removing these features, the Informer model has a winning performance of 78.67 <span><math><msup><mrow><mtext>W/m</mtext></mrow><mrow><mn>2</mn></mrow></msup></math></span> in MAE. The obtained performance aligns with existing literature by taking the climate zone and time granularity of data into consideration. As the map shows an estimate of GHI over 93,000 grids with a frequent update, the paper also describes a computational framework for displaying the entire map. It tests the runtime performance of deep learning models in the GHI estimation process.</div></div>","PeriodicalId":428,"journal":{"name":"Solar Energy","volume":"288 ","pages":"Article 113262"},"PeriodicalIF":6.0,"publicationDate":"2025-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143162665","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The effect of Bi2S3/Bi2MoO6/TiO2 photoanode microstructure on solar PEC degradation on several typical dyes

IF 6 2区工程技术 Q2 ENERGY & FUELS

Solar Energy

Pub Date : 2025-01-24 DOI: 10.1016/j.solener.2025.113298

Wei Zheng, Yang Lian, Shuai Shao, Ao Chen, Chuang Chen, Jinshan Cao

The solar photoelectrochemical (PEC) cell is designed to degrade several typical organic dyes, methylene blue (MB), Rhodamine B (Rh B), methyl orange (MO) and malachite green (MG) with two Bi₂S₃/Bi₂MoO₆/TiO₂ photoanodes in different microstructure and Pt plate counter electrode. The photoanode microstructure was modified via two different preparation routes to improve dye degradation efficiency. XRD, SEM, EDS and TEM measurements were used to characterize the elemental composition and microstructure of photoanodes. The results showed that PEC cells based on Bi₂S₃/Bi₂MoO₆/TiO₂ photoanode can exert efficient degradation on the π-π conjugated double bond system of benzene ring and N ion, while low degradation on azo structure through the comparison of UV–Vis. spectra of dye solution before and after PEC degradation. Compared with BSMT*, BSMT photoanode exhibited the highest decoloration rate on MG dye, up to 86.69 % under 2-hour one sun illumination (AM1.5,100 mW/cm²), which was attributed to thinner Bi₂MoO₆ nanocrystals and smaller Bi₂S₃ quantum dots leading to the stronger absorption in UV–Vis. region and higher bulk charge separation efficiency. Furthermore, the BSMT photoanode system exhibited high stability that decoloration rate was still 82.64 % after 5 cycles of 2-hour. It was confirmed that hydroxyl radicals, superoxide radicals and holes were the key active species in MG degradation process through active species-trapping experiments. According to all results, the thermodynamic mechanism of PEC dye degradation was illustrated based on energy level alignment in cells.

{"title":"The effect of Bi2S3/Bi2MoO6/TiO2 photoanode microstructure on solar PEC degradation on several typical dyes","authors":"Wei Zheng, Yang Lian, Shuai Shao, Ao Chen, Chuang Chen, Jinshan Cao","doi":"10.1016/j.solener.2025.113298","DOIUrl":"10.1016/j.solener.2025.113298","url":null,"abstract":"<div><div>The solar photoelectrochemical (PEC) cell is designed to degrade several typical organic dyes, methylene blue (MB), Rhodamine B (Rh B), methyl orange (MO) and malachite green (MG) with two Bi<sub>2</sub>S<sub>3</sub>/Bi<sub>2</sub>MoO<sub>6</sub>/TiO<sub>2</sub> photoanodes in different microstructure and Pt plate counter electrode. The photoanode microstructure was modified via two different preparation routes to improve dye degradation efficiency. XRD, SEM, EDS and TEM measurements were used to characterize the elemental composition and microstructure of photoanodes. The results showed that PEC cells based on Bi<sub>2</sub>S<sub>3</sub>/Bi<sub>2</sub>MoO<sub>6</sub>/TiO<sub>2</sub> photoanode can exert efficient degradation on the π-π conjugated double bond system of benzene ring and N ion, while low degradation on azo structure through the comparison of UV–Vis. spectra of dye solution before and after PEC degradation. Compared with BSMT*, BSMT photoanode exhibited the highest decoloration rate on MG dye, up to 86.69 % under 2-hour one sun illumination (AM1.5,100 mW/cm<sup>2</sup>), which was attributed to thinner Bi<sub>2</sub>MoO<sub>6</sub> nanocrystals and smaller Bi<sub>2</sub>S<sub>3</sub> quantum dots leading to the stronger absorption in UV–Vis. region and higher bulk charge separation efficiency. Furthermore, the BSMT photoanode system exhibited high stability that decoloration rate was still 82.64 % after 5 cycles of 2-hour. It was confirmed that hydroxyl radicals, superoxide radicals and holes were the key active species in MG degradation process through active species-trapping experiments. According to all results, the thermodynamic mechanism of PEC dye degradation was illustrated based on energy level alignment in cells.</div></div>","PeriodicalId":428,"journal":{"name":"Solar Energy","volume":"288 ","pages":"Article 113298"},"PeriodicalIF":6.0,"publicationDate":"2025-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143162261","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Investigating the potential of perovskite-based redox electrolytes for dye sensitised solar cells: An in-depth analysis using mathematical and DFT techniques

IF 6 2区工程技术 Q2 ENERGY & FUELS

Solar Energy

Pub Date : 2025-01-24 DOI: 10.1016/j.solener.2025.113267

Shriswaroop Sathyanarayanan , Saravanan Pandiaraj , Chamil Abeykoon , Khalid E. Alzahrani , Abdullah N. Alodhayb , Andrews Nirmala Grace

This study investigates the efficiency enhancement of dye-sensitized solar cells (DSSCs) achieved by transitioning from methylammonium lead iodide (MAPbI₃) to methylammonium lead mixed-halide (MAPbI₂Cl) as a redox electrolyte. Using a combination of mathematical modelling and Density Functional Theory (DFT), the research evaluates the impact of this change on key physical parameters such as thickness, density of states, defect levels, and operational temperatures. The findings reveal that MAPbI₂Cl significantly improves the efficiency of DSSCs from 11.35 % to 15.48 %. This enhancement is attributed to MAPbI₂Cl’s superior charge carrier mobility and extended carrier lifetimes, which contribute to improved electronic properties and reduced recombination losses. Additionally, MAPbI₂Cl exhibits enhanced stability compared to MAPbI₃, addressing a critical challenge in DSSC performance. These insights highlight the potential of MAPbI₂Cl as a next-generation redox electrolyte for DSSCs, paving the way for more efficient and stable solar energy technologies. The research emphasizes the importance of material optimization in advancing the sustainability and performance of photovoltaic systems, offering a promising pathway for future innovation in renewable energy.

{"title":"Investigating the potential of perovskite-based redox electrolytes for dye sensitised solar cells: An in-depth analysis using mathematical and DFT techniques","authors":"Shriswaroop Sathyanarayanan , Saravanan Pandiaraj , Chamil Abeykoon , Khalid E. Alzahrani , Abdullah N. Alodhayb , Andrews Nirmala Grace","doi":"10.1016/j.solener.2025.113267","DOIUrl":"10.1016/j.solener.2025.113267","url":null,"abstract":"<div><div>This study investigates the efficiency enhancement of dye-sensitized solar cells (DSSCs) achieved by transitioning from methylammonium lead iodide (MAPbI<sub>3</sub>) to methylammonium lead mixed-halide (MAPbI<sub>2</sub>Cl) as a redox electrolyte. Using a combination of mathematical modelling and Density Functional Theory (DFT), the research evaluates the impact of this change on key physical parameters such as thickness, density of states, defect levels, and operational temperatures. The findings reveal that MAPbI<sub>2</sub>Cl significantly improves the efficiency of DSSCs from 11.35 % to 15.48 %. This enhancement is attributed to MAPbI<sub>2</sub>Cl’s superior charge carrier mobility and extended carrier lifetimes, which contribute to improved electronic properties and reduced recombination losses. Additionally, MAPbI<sub>2</sub>Cl exhibits enhanced stability compared to MAPbI<sub>3</sub>, addressing a critical challenge in DSSC performance. These insights highlight the potential of MAPbI<sub>2</sub>Cl as a next-generation redox electrolyte for DSSCs, paving the way for more efficient and stable solar energy technologies. The research emphasizes the importance of material optimization in advancing the sustainability and performance of photovoltaic systems, offering a promising pathway for future innovation in renewable energy.</div></div>","PeriodicalId":428,"journal":{"name":"Solar Energy","volume":"288 ","pages":"Article 113267"},"PeriodicalIF":6.0,"publicationDate":"2025-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143162605","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Performance Evaluation of a Mixed-Mode solar dryer with PCM-based energy storage for efficient drying of Baccaurea ramiflora

IF 6 2区工程技术 Q2 ENERGY & FUELS

Solar Energy

Pub Date : 2025-01-23 DOI: 10.1016/j.solener.2025.113279

Biraj Das , Pushpendra Singh , Pankaj Kalita

A novel mixed-mode solar dryer (MMSD) integrated with a phase change material (PCM) and a drying capacity of 15 kg was designed and developed to efficiently dry Baccaurea ramiflora (Burmese grapes). The system’s performance was evaluated for three sample types: untreated and blanched at 70 °C (BG70) and 80 °C (BG80), under two conditions: within the solar dryer and open sun drying. Blanching treatments significantly reduced drying time by 5–7 h, with BG70 achieving the shortest drying duration of 13 h. The incorporation of PCM extended the dryer’s operational time by an additional two hours, enabling sustained drying under suboptimal solar conditions. Moisture content in all cases was reduced from 84 % to 10 % on a wet basis. Drying kinetics were analyzed using eight models, with the Midilli and Kucuk model demonstrating the best fit due to its highest R², lowest RMSE, and reduced chi-square values. Among the samples, BG70 showed the maximum evaporative heat transfer coefficient of 2.33 W/m²K. Quality analysis indicated that solar-dried samples retained superior attributes compared to open-sun dried samples. The study’s novelty lies in the integration of MMSD with a latent heat storage unit for drying less common fruits like Burmese grapes, offering enhanced efficiency and product quality. By assessing the impact of blanching and controlled drying conditions, this research addresses a crucial gap in solar drying literature, providing a sustainable solution for the climatic conditions similar to the north-eastern region of India.

{"title":"Performance Evaluation of a Mixed-Mode solar dryer with PCM-based energy storage for efficient drying of Baccaurea ramiflora","authors":"Biraj Das , Pushpendra Singh , Pankaj Kalita","doi":"10.1016/j.solener.2025.113279","DOIUrl":"10.1016/j.solener.2025.113279","url":null,"abstract":"<div><div>A novel mixed-mode solar dryer (MMSD) integrated with a phase change material (PCM) and a drying capacity of 15 kg was designed and developed to efficiently dry <em>Baccaurea ramiflora</em> (Burmese grapes). The system’s performance was evaluated for three sample types: untreated and blanched at 70 °C (BG70) and 80 °C (BG80), under two conditions: within the solar dryer and open sun drying. Blanching treatments significantly reduced drying time by 5–7 h, with BG70 achieving the shortest drying duration of 13 h. The incorporation of PCM extended the dryer’s operational time by an additional two hours, enabling sustained drying under suboptimal solar conditions. Moisture content in all cases was reduced from 84 % to 10 % on a wet basis. Drying kinetics were analyzed using eight models, with the Midilli and Kucuk model demonstrating the best fit due to its highest R<sup>2</sup>, lowest RMSE, and reduced chi-square values. Among the samples, BG70 showed the maximum evaporative heat transfer coefficient of 2.33 W/m<sup>2</sup>K. Quality analysis indicated that solar-dried samples retained superior attributes compared to open-sun dried samples. The study’s novelty lies in the integration of MMSD with a latent heat storage unit for drying less common fruits like Burmese grapes, offering enhanced efficiency and product quality. By assessing the impact of blanching and controlled drying conditions, this research addresses a crucial gap in solar drying literature, providing a sustainable solution for the climatic conditions similar to the north-eastern region of India.</div></div>","PeriodicalId":428,"journal":{"name":"Solar Energy","volume":"288 ","pages":"Article 113279"},"PeriodicalIF":6.0,"publicationDate":"2025-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143162217","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Development of a highly stretchable and detachable radiative cooling cover to facilitate radiative cooling of outdoor object in various type

IF 6 2区工程技术 Q2 ENERGY & FUELS

Solar Energy

Pub Date : 2025-01-23 DOI: 10.1016/j.solener.2025.113254

Hangyu Lim , Tae Yoon Lee , Dongwoo Chae , Jaein Park , Hansang Sung , Chanwoong Park , Seongwoo Park , Young Keun Kim , Heon Lee

This study addresses the pressing issues of global warming and environmental concerns, which have led to increasing efforts to reduce fossil fuel usage and greenhouse gas emissions. Specifically, it focuses on enhancing existing cooling systems that consume significant amounts of energy and release pollutants, by introducing innovative radiative cooling (RC) technology capable of cooling without energy consumption. The RC efficiently reflects solar radiation, prevents heating, and emits long-wavelength infrared radiation through the atmospheric window. This study reports on a stretchable and detachable radiative cooling (SDRC) device in the form of a fabric cover manufactured via electrospinning that offers a practical, cost-effective, and flexible cooling solution. This SDRC cover provided a solar reflectance of 93.3 % and an emissivity of 91.3 % in the atmospheric window region, enabling a cooling capacity of 94.1 W/m². In outdoor temperature experiments, the SDRC cover cools a covered object by approximately 7 °C below the ambient temperature. In addition, the SDRC cover has a stretchability of 200 %, which allows easy attachment to objects without an adhesive agent. Applying this SDRC cover to large complex-shaped objects significantly reduced the ambient temperature of the air within the object. The developed SDRC cover can be cooled and, in turn, cool objects below ambient temperature, reducing the need for cooling systems, pollutants, and electricity.

{"title":"Development of a highly stretchable and detachable radiative cooling cover to facilitate radiative cooling of outdoor object in various type","authors":"Hangyu Lim , Tae Yoon Lee , Dongwoo Chae , Jaein Park , Hansang Sung , Chanwoong Park , Seongwoo Park , Young Keun Kim , Heon Lee","doi":"10.1016/j.solener.2025.113254","DOIUrl":"10.1016/j.solener.2025.113254","url":null,"abstract":"<div><div>This study addresses the pressing issues of global warming and environmental concerns, which have led to increasing efforts to reduce fossil fuel usage and greenhouse gas emissions. Specifically, it focuses on enhancing existing cooling systems that consume significant amounts of energy and release pollutants, by introducing innovative radiative cooling (RC) technology capable of cooling without energy consumption. The RC efficiently reflects solar radiation, prevents heating, and emits long-wavelength infrared radiation through the atmospheric window. This study reports on a stretchable and detachable radiative cooling (SDRC) device in the form of a fabric cover manufactured via electrospinning that offers a practical, cost-effective, and flexible cooling solution. This SDRC cover provided a solar reflectance of 93.3 % and an emissivity of 91.3 % in the atmospheric window region, enabling a cooling capacity of 94.1 W/m<sup>2</sup>. In outdoor temperature experiments, the SDRC cover cools a covered object by approximately 7 °C below the ambient temperature. In addition, the SDRC cover has a stretchability of 200 %, which allows easy attachment to objects without an adhesive agent. Applying this SDRC cover to large complex-shaped objects significantly reduced the ambient temperature of the air within the object. The developed SDRC cover can be cooled and, in turn, cool objects below ambient temperature, reducing the need for cooling systems, pollutants, and electricity.</div></div>","PeriodicalId":428,"journal":{"name":"Solar Energy","volume":"288 ","pages":"Article 113254"},"PeriodicalIF":6.0,"publicationDate":"2025-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143162606","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Monitoring degradation and carrier collection losses of narrow bandgap perovskite solar cells with different organic hole transport layers by spectroscopic ellipsometry and external quantum efficiency

IF 6 2区工程技术 Q2 ENERGY & FUELS

Solar Energy

Pub Date : 2025-01-23 DOI: 10.1016/j.solener.2025.113243

Marie Solange Tumusange, Lei Chen, Madan K. Mainali, Bailey M. Frye, Emily J. Amonette, Alexander V. Bordovalos, Zhaoning Song, Yanfa Yan, Nikolas J. Podraza

Narrow bandgap organic–inorganic lead halide-based perovskites have attracted tremendous attention in photovoltaics due to their advantages of low cost, easy synthesis and high efficiency. Selection of suitable charge transport layers and evaluation of device stability and optimization is necessary for commercialization. Degradation of encapsulated narrow bandgap tin–lead perovskite solar cells made with poly(3,4-ethylenedioxythiophene): polystyrenesulfonate (PEDOT:PSS), poly[3-(6-carboxyhexyl)thiophene-2,5-diyl] (P3CT), and poly[bis(4-phenyl)(2,4,6-trimethylphenyl)amine] (PTAA) hole transport layers (HTLs) in ambient air is investigated using spectroscopic ellipsometry measurements. Optical and structural properties of the perovskite absorber layer remain relatively stable after 10 days of aging in ambient air. External quantum efficiency (EQE) simulations based on spectroscopic ellipsometry determined models identify carrier collection losses when compared with experimental EQE. A fresh device with P3CT HTL has 90 ± 1 % collection of photogenerated carriers in the perovskite absorber near the front contact interface. 3-, 5-, and 10-days aged devices with P3CT have 88 ± 1 % collection probability near the front contact interface. Fresh and 3-days aged devices with PEDOT:PSS HTL have 90 ± 1 % collection of photogenerated carriers in the perovskite absorber near the front contact interface. 5- and 10-days aged devices have 88 ± 1 % near the front contact interface. Fresh, 3-, 5-, and 10-days aged devices with PTAA HTL have 82 ± 1 % collection near the front contact interface. Devices with P3CT and PEDOT:PSS HTLs have 2.6 to 4.8 % higher power conversion efficiency and reduced electronic losses compared to a device with a PTAA HTL. Understanding how carrier collection losses, particularly near the front and back contacts, varies with different HTLs is necessary for optimizing perovskite solar cell performance.

{"title":"Monitoring degradation and carrier collection losses of narrow bandgap perovskite solar cells with different organic hole transport layers by spectroscopic ellipsometry and external quantum efficiency","authors":"Marie Solange Tumusange, Lei Chen, Madan K. Mainali, Bailey M. Frye, Emily J. Amonette, Alexander V. Bordovalos, Zhaoning Song, Yanfa Yan, Nikolas J. Podraza","doi":"10.1016/j.solener.2025.113243","DOIUrl":"10.1016/j.solener.2025.113243","url":null,"abstract":"<div><div>Narrow bandgap organic–inorganic lead halide-based perovskites have attracted tremendous attention in photovoltaics due to their advantages of low cost, easy synthesis and high efficiency. Selection of suitable charge transport layers and evaluation of device stability and optimization is necessary for commercialization. Degradation of encapsulated narrow bandgap tin–lead perovskite solar cells made with poly(3,4-ethylenedioxythiophene): polystyrenesulfonate (PEDOT:PSS), poly[3-(6-carboxyhexyl)thiophene-2,5-diyl] (P3CT), and poly[bis(4-phenyl)(2,4,6-trimethylphenyl)amine] (PTAA) hole transport layers (HTLs) in ambient air is investigated using spectroscopic ellipsometry measurements. Optical and structural properties of the perovskite absorber layer remain relatively stable after 10 days of aging in ambient air. External quantum efficiency (EQE) simulations based on spectroscopic ellipsometry determined models identify carrier collection losses when compared with experimental EQE. A fresh device with P3CT HTL has 90 ± 1 % collection of photogenerated carriers in the perovskite absorber near the front contact interface. 3-, 5-, and 10-days aged devices with P3CT have 88 ± 1 % collection probability near the front contact interface. Fresh and 3-days aged devices with PEDOT:PSS HTL have 90 ± 1 % collection of photogenerated carriers in the perovskite absorber near the front contact interface. 5- and 10-days aged devices have 88 ± 1 % near the front contact interface. Fresh, 3-, 5-, and 10-days aged devices with PTAA HTL have 82 ± 1 % collection near the front contact interface. Devices with P3CT and PEDOT:PSS HTLs have 2.6 to 4.8 % higher power conversion efficiency and reduced electronic losses compared to a device with a PTAA HTL. Understanding how carrier collection losses, particularly near the front and back contacts, varies with different HTLs is necessary for optimizing perovskite solar cell performance.</div></div>","PeriodicalId":428,"journal":{"name":"Solar Energy","volume":"288 ","pages":"Article 113243"},"PeriodicalIF":6.0,"publicationDate":"2025-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143162604","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0