Pub Date : 2025-04-23DOI: 10.1016/j.nanoen.2025.111047
Ultraviolet photodetectors (UV-PDs) are essential for a wide range of applications, yet their practical use is often limited by challenges such as low…
{"title":"Self-Powered Ultraviolet Photodetector Enabled by a Quasi-n-p-n Heterostructure of SnO2 Colloidal Quantum Dots, p-GaN, and a Two-Dimensional Electron Gas at the AlGaN/GaN Interface","authors":"","doi":"10.1016/j.nanoen.2025.111047","DOIUrl":"https://doi.org/10.1016/j.nanoen.2025.111047","url":null,"abstract":"Ultraviolet photodetectors (UV-PDs) are essential for a wide range of applications, yet their practical use is often limited by challenges such as low…","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":"8 1","pages":""},"PeriodicalIF":17.6,"publicationDate":"2025-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143862806","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Electrolyte engineering has improved the cycling life and energy density of lithium metal batteries (LMBs) by simultaneously stabilizing Li anodes and high voltage cathodes (such as LiNi0.6Co0.2Mn0.2O2, NCM622). However, these electrolytes often compromise the fast-charging performance due to relatively low Li+ transport kinetics and sluggish interfacial dynamics. Herein, we introduce a strong/weak solvents co-solvation strategy designed to construct an electrolyte with anion-rich clusters and rapid Li+ transport kinetics for fast-charging and energy-dense LMBs. In this approach, N,N-dimethylsulfamoyl fluoride (FSN) serves as the weak solvent, co-coordinating Li+ together with the strong solvent 1,2-dimethoxyethane (DME) to form an anion-rich first solvation sheath, while the remaining DME molecules distribute externally to facilitate Li+ transport. The resulting FSN-DME electrolyte exhibits an impressive ionic conductivity of 7.43 mS cm-1 and an exceptional Li metal efficiency of 99.6%. When applied in 1-Ah NCM622||Li pouch cells, the FSN-DME electrolyte enables stable operation of 300 cycles at 0.2/0.5 C and 100 cycles at 1 C charge/discharge rates under stringent conditions (cathode areal loading: 3.75 mAh cm-2, electrolyte: 3.0 g Ah-1). This breakthrough in strong/weak solvents co-solvation electrolytes, along with the development of Li2O-rich SEI interfacial layers, provides a robust foundation for designing next-generation electrolyte materials that support both fast-charging and long-life LMBs.
{"title":"A Strong/weak Solvents Co-Solvation Electrolyte for Fast-charging Lithium Metal Batteries","authors":"Guoyu Wang, Qiang Ma, Tong Zhang, Yonghong Deng, Guangzhao Zhang","doi":"10.1016/j.nanoen.2025.111064","DOIUrl":"https://doi.org/10.1016/j.nanoen.2025.111064","url":null,"abstract":"Electrolyte engineering has improved the cycling life and energy density of lithium metal batteries (LMBs) by simultaneously stabilizing Li anodes and high voltage cathodes (such as LiNi<sub>0.6</sub>Co<sub>0.2</sub>Mn<sub>0.2</sub>O<sub>2</sub>, NCM622). However, these electrolytes often compromise the fast-charging performance due to relatively low Li<sup>+</sup> transport kinetics and sluggish interfacial dynamics. Herein, we introduce a strong/weak solvents co-solvation strategy designed to construct an electrolyte with anion-rich clusters and rapid Li<sup>+</sup> transport kinetics for fast-charging and energy-dense LMBs. In this approach, N,N-dimethylsulfamoyl fluoride (FSN) serves as the weak solvent, co-coordinating Li<sup>+</sup> together with the strong solvent 1,2-dimethoxyethane (DME) to form an anion-rich first solvation sheath, while the remaining DME molecules distribute externally to facilitate Li<sup>+</sup> transport. The resulting FSN-DME electrolyte exhibits an impressive ionic conductivity of 7.43 mS cm<sup>-1</sup> and an exceptional Li metal efficiency of 99.6%. When applied in 1-Ah NCM622||Li pouch cells, the FSN-DME electrolyte enables stable operation of 300 cycles at 0.2/0.5<!-- --> <!-- -->C and 100 cycles at 1<!-- --> <!-- -->C charge/discharge rates under stringent conditions (cathode areal loading: 3.75 mAh cm<sup>-2</sup>, electrolyte: 3.0<!-- --> <!-- -->g Ah<sup>-1</sup>). This breakthrough in strong/weak solvents co-solvation electrolytes, along with the development of Li<sub>2</sub>O-rich SEI interfacial layers, provides a robust foundation for designing next-generation electrolyte materials that support both fast-charging and long-life LMBs.","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":"33 1","pages":""},"PeriodicalIF":17.6,"publicationDate":"2025-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143858179","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Advanced transmission electron microscopy (TEM) have emerged as powerful tools for investigating the complex electrochemical processes and failure mechanisms in lithium-ion batteries at both the nanoscale and atomic levels. Advanced static TEM methods, such as electron energy loss spectroscopy (EELS), electron holography (EH), cryo-electron microscopy (cryo-EM), differential phase contrast (DPC), and four-dimensional scanning TEM (4D STEM), have provided unprecedented insights into electrode materials, solid electrolytes, and interface structures. On this foundation, multi-field in-situ TEM techniques have been developed to dynamically study the structural and chemical evolution of battery materials during electrochemical cycling in real-time. This paper reviews both static (ex-situ) studies using high-resolution electron microscopy and the recently developed dynamic (in-situ/operando) TEM techniques for battery research. We first summarize the development of advanced TEM characterization methods and their applications in lithium-ion batteries. We then focus on key findings related to lithiation/delithiation mechanisms, interface phenomena, thermal stability, mechanical degradation of battery materials in response to electrochemical cycling, as well as the effects of applied electric, thermal, and mechanical fields in-situ. This review systematically illustrates how advanced TEM characterization techniques can bridge atomic-scale observations with macroscopic battery behavior, ultimately enhancing battery performance and safety while accelerating the design and development of next-generation batteries.
{"title":"Advances of transmission electron microscopy research for lithium-ion batteries","authors":"Yu Shen, Jianwei Zhang, Shulin Chen, Ke Qu, Zhenzhong Yang, Yong Peng","doi":"10.1016/j.nanoen.2025.111065","DOIUrl":"https://doi.org/10.1016/j.nanoen.2025.111065","url":null,"abstract":"Advanced transmission electron microscopy (TEM) have emerged as powerful tools for investigating the complex electrochemical processes and failure mechanisms in lithium-ion batteries at both the nanoscale and atomic levels. Advanced static TEM methods, such as electron energy loss spectroscopy (EELS), electron holography (EH), cryo-electron microscopy (cryo-EM), differential phase contrast (DPC), and four-dimensional scanning TEM (4D STEM), have provided unprecedented insights into electrode materials, solid electrolytes, and interface structures. On this foundation, multi-field in-situ TEM techniques have been developed to dynamically study the structural and chemical evolution of battery materials during electrochemical cycling in real-time. This paper reviews both static (ex-situ) studies using high-resolution electron microscopy and the recently developed dynamic (in-situ/operando) TEM techniques for battery research. We first summarize the development of advanced TEM characterization methods and their applications in lithium-ion batteries. We then focus on key findings related to lithiation/delithiation mechanisms, interface phenomena, thermal stability, mechanical degradation of battery materials in response to electrochemical cycling, as well as the effects of applied electric, thermal, and mechanical fields in-situ. This review systematically illustrates how advanced TEM characterization techniques can bridge atomic-scale observations with macroscopic battery behavior, ultimately enhancing battery performance and safety while accelerating the design and development of next-generation batteries.","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":"7 1","pages":""},"PeriodicalIF":17.6,"publicationDate":"2025-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143858226","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Unmanned aerial vehicles (UAVs) are being increasingly utilized in various applications, which necessitates the assessment of their safety status. While self-powered sensors utilizing triboelectric nanogenerators have advanced fault monitoring methodologies, the effective identification of damage to UAV blades remains an area that warrants further investigation. This study presents the UAV blade damage monitoring system (UBDMS), a novel system designed for the identification of UAV blade damage. The UBDMS incorporates a blade sensor mounted on the UAV motor to record rotational data, an Arduino for initial data acquisition, and a Raspberry Pi for subsequent data processing and damage evaluation. A comprehensive analysis and testing of the sensor's structure, operational principles, and electrical output characteristics were performed. The experimental findings demonstrate that the electrical signals generated by the sensor correspond to various blade damage types within the frequency domain. However, the development of a universal and precise judgment standard proves to be difficult. To overcome this challenge, deep learning technology was utilized to analyze and evaluate friction electric signals, resulting in a classification accuracy rate of 94.4% for damage types. This research significantly enhances UAV flight safety and introduces a new methodology for the in-situ monitoring of UAV blade damage.
{"title":"Deep learning-enhanced safety system for real-time in-situ blade damage monitoring in UAV using triboelectric sensor","authors":"Zhipeng Pan, Kuankuan Wang, Yixin Liu, Xiang Guan, Changfeng Chen, Junchi Liu, Zhihong Wang, Fei Li, Guanghui Ma, Yongming Yao, Tianyu Li","doi":"10.1016/j.nanoen.2025.111063","DOIUrl":"https://doi.org/10.1016/j.nanoen.2025.111063","url":null,"abstract":"Unmanned aerial vehicles (UAVs) are being increasingly utilized in various applications, which necessitates the assessment of their safety status. While self-powered sensors utilizing triboelectric nanogenerators have advanced fault monitoring methodologies, the effective identification of damage to UAV blades remains an area that warrants further investigation. This study presents the UAV blade damage monitoring system (UBDMS), a novel system designed for the identification of UAV blade damage. The UBDMS incorporates a blade sensor mounted on the UAV motor to record rotational data, an Arduino for initial data acquisition, and a Raspberry Pi for subsequent data processing and damage evaluation. A comprehensive analysis and testing of the sensor's structure, operational principles, and electrical output characteristics were performed. The experimental findings demonstrate that the electrical signals generated by the sensor correspond to various blade damage types within the frequency domain. However, the development of a universal and precise judgment standard proves to be difficult. To overcome this challenge, deep learning technology was utilized to analyze and evaluate friction electric signals, resulting in a classification accuracy rate of 94.4% for damage types. This research significantly enhances UAV flight safety and introduces a new methodology for the in-situ monitoring of UAV blade damage.","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":"12 1","pages":""},"PeriodicalIF":17.6,"publicationDate":"2025-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143858152","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
To address carbon neutrality and peak carbon emissions, harvesting mechanical energy from bearings and converting it into electrical energy to drive ammonia leakage alarm, as well as bearings’ mechanical fault self-diagnosis, is challenging yet highly demanded in the green ammonia production industry. Herein, we demonstrated an Intelligent Triboelectric Sliding Bearing (ITSB) system, featuring a free-standing rotary barrel-shaped triboelectric nanogenerator (TENG), a gallium oxide (Ga2O3)/MXene nanocomposite-based NH3 gas sensor and a self-driven data transmission unit. In addition to retaining the traditional load-bearing function, the free-standing rotary barrel-shaped TENG converted the friction from rotational motion into electrical energy, providing continuous power for sensing and data transmission. Low-cost Ga₂O₃/MXene composite was fabricated as a gas-sensitive film for NH3 using a combined hydrothermal synthesis and physical composite method. The composite film-based interdigitated electrode demonstrated a highly sensitive (65.7% @2 ppm) and fast response (5 s@2 ppm) to NH3 gas with surface synergy effect performance confirmed through density functional theory calculations (DFT). Additionally, the self-driven data transmission unit were implemented to autonomously regulate and store the free-standing rotary barrel-shaped TENG output for sensing and mechanical operation monitoring. A neural network algorithm was developed to predict mechanical failures of bearings. By integrating on-site data, the accuracy reached 99%. This integrated system paves a practical solution for gas sensing and mechanical fault diagnosis of bearings in green ammonia production for its sustainable and safe development.
{"title":"Intelligent Triboelectric Sliding Bearing for Gas leak Self-sensing and Mechanical Fault Self-diagnosis in Green Ammonia Production","authors":"Xingwei Wang, Likun Gong, Huanshuo Liu, Xiaohong Zhou","doi":"10.1016/j.nanoen.2025.111060","DOIUrl":"https://doi.org/10.1016/j.nanoen.2025.111060","url":null,"abstract":"To address carbon neutrality and peak carbon emissions, harvesting mechanical energy from bearings and converting it into electrical energy to drive ammonia leakage alarm, as well as bearings’ mechanical fault self-diagnosis, is challenging yet highly demanded in the green ammonia production industry. Herein, we demonstrated an Intelligent Triboelectric Sliding Bearing (ITSB) system, featuring a free-standing rotary barrel-shaped triboelectric nanogenerator (TENG), a gallium oxide (Ga<sub>2</sub>O<sub>3</sub>)/MXene nanocomposite-based NH<sub>3</sub> gas sensor and a self-driven data transmission unit. In addition to retaining the traditional load-bearing function, the free-standing rotary barrel-shaped TENG converted the friction from rotational motion into electrical energy, providing continuous power for sensing and data transmission. Low-cost Ga₂O₃/MXene composite was fabricated as a gas-sensitive film for NH<sub>3</sub> using a combined hydrothermal synthesis and physical composite method. The composite film-based interdigitated electrode demonstrated a highly sensitive (65.7% @2 ppm) and fast response (5<!-- --> <!-- -->s@2 ppm) to NH<sub>3</sub> gas with surface synergy effect performance confirmed through density functional theory calculations (DFT). Additionally, the self-driven data transmission unit were implemented to autonomously regulate and store the free-standing rotary barrel-shaped TENG output for sensing and mechanical operation monitoring. A neural network algorithm was developed to predict mechanical failures of bearings. By integrating on-site data, the accuracy reached 99%. This integrated system paves a practical solution for gas sensing and mechanical fault diagnosis of bearings in green ammonia production for its sustainable and safe development.","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":"3 1","pages":""},"PeriodicalIF":17.6,"publicationDate":"2025-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143858180","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-04-21DOI: 10.1016/j.nanoen.2025.111058
Yi Zhou, Xuechuan Wang, Yifan Wang, Xiaoliang Zou, Long Xie, Yuanyuan Qiang, Wei Wang, Yitong Li, Ouyang Yue, Xinhua Liu
Emergent triboelectric nanogenerators (TENGs) with ascendant self-powering, high sensitivity, and portability natures hold promising for advanced wearable electronics. However, wearable TENGs are still confronted with challenges regarding seamless integration with electronic textiles (e-textiles), energy harvesting efficiency, and long-term operational stability. Here, we propose an innovative contact-sliding-expansion strategy for the on-demand fabrication of auxetic metastructure-assisted yarns based self-powered e-textiles for efficient energy harvesting and motion monitoring, which exquisitely combines a helical twisting fabrication with Negative Poisson’s ratio structural design to furthest endow Auxetic-yarns with superior sensitivity and power density under various kinematic deformations. Specifically, the yarns utilize coaxial core-shell structured collagen aggregate and polyvinyl chloride conductive fibers as the positive and negative triboelectric layers, respectively, and then were subtly used as the weft for incorporating into the e-textiles through a plain weave process with a maximum output voltage of 164 V and a power density of 0.051 W·m⁻2. Furthermore, the e-textiles were harmoniously integrated into smart clothing and demonstrated exceptional sensitivity (2.35 V kPa⁻1) in detecting movements at body joints. Through real-time signal transmission and processing, the e-textiles accurately achieved posture recognition, fall detection, and multitudinous health monitoring, providing potential for practical application in wearable devices, healthcare, and intelligent control systems.
{"title":"Auxetic metastructure-assisted yarn based Self-powered e-textiles for efficient energy harvesting and motion monitoring via contact-sliding-expansion strategy","authors":"Yi Zhou, Xuechuan Wang, Yifan Wang, Xiaoliang Zou, Long Xie, Yuanyuan Qiang, Wei Wang, Yitong Li, Ouyang Yue, Xinhua Liu","doi":"10.1016/j.nanoen.2025.111058","DOIUrl":"https://doi.org/10.1016/j.nanoen.2025.111058","url":null,"abstract":"Emergent triboelectric nanogenerators (TENGs) with ascendant self-powering, high sensitivity, and portability natures hold promising for advanced wearable electronics. However, wearable TENGs are still confronted with challenges regarding seamless integration with electronic textiles (e-textiles), energy harvesting efficiency, and long-term operational stability. Here, we propose an innovative contact-sliding-expansion strategy for the on-demand fabrication of auxetic metastructure-assisted yarns based self-powered e-textiles for efficient energy harvesting and motion monitoring, which exquisitely combines a helical twisting fabrication with Negative Poisson’s ratio structural design to furthest endow Auxetic-yarns with superior sensitivity and power density under various kinematic deformations. Specifically, the yarns utilize coaxial core-shell structured collagen aggregate and polyvinyl chloride conductive fibers as the positive and negative triboelectric layers, respectively, and then were subtly used as the weft for incorporating into the e-textiles through a plain weave process with a maximum output voltage of 164<!-- --> <!-- -->V and a power density of 0.051<!-- --> <!-- -->W·m⁻<sup>2</sup>. Furthermore, the e-textiles were harmoniously integrated into smart clothing and demonstrated exceptional sensitivity (2.35<!-- --> <!-- -->V kPa⁻<sup>1</sup>) in detecting movements at body joints. Through real-time signal transmission and processing, the e-textiles accurately achieved posture recognition, fall detection, and multitudinous health monitoring, providing potential for practical application in wearable devices, healthcare, and intelligent control systems.","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":"138 1","pages":""},"PeriodicalIF":17.6,"publicationDate":"2025-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143858186","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-04-21DOI: 10.1016/j.nanoen.2025.111055
Jing Li , Xiaofeng Hu , Yifeng Feng , Xiuyuan Chen , Jiajie Ye , Xinyang Wang , Chenchen Yang , Dingshuo Zhang , Qiuting Cai , Haiping He , Zhizhen Ye , Qingquan He , Xingliang Dai , Jun Pan
Efficient perovskite light-emitting diodes (PeLEDs) that emit at wavelengths between 620 and 650 nm are key to the next generation of ultrahigh-definition displays. Quantum-confined CsPbI3 quantum dots (QDs) can overcome the intrinsically narrow bandgap, thus meeting the requirements of pure red emitters. However, the inherent instability and poor carrier transport properties of CsPbI3 QDs hinder their device performance. Herein, we introduce thiophene-2-sulfonamide (2-ThSA), a short-chain multifunctional ligand, to passivate surface defects and enhance carrier transport in CsPbI3 QDs. The 2-ThSA treated QDs exhibited a near 100 % photoluminescence quantum yield (PLQY), observably improved stability, and enhanced carrier transport properties due to the strong interactions between the CsPbI3 QDs and multiple functional groups of 2-ThSA. PeLEDs based on these modified QDs demonstrated superior spectral stability, reached a remarkable external quantum efficiency (EQE) of 28.73 %, and displayed low efficiency roll-off. Additionally, large-area devices (64 mm2) showed an EQE exceeding 20 %, highlighting the potential of our approach for high-performance, large-scale displays.
{"title":"Highly efficient pure red light-emitting diodes enabled by multifunctional ligand-coordinated CsPbI3 quantum dots","authors":"Jing Li , Xiaofeng Hu , Yifeng Feng , Xiuyuan Chen , Jiajie Ye , Xinyang Wang , Chenchen Yang , Dingshuo Zhang , Qiuting Cai , Haiping He , Zhizhen Ye , Qingquan He , Xingliang Dai , Jun Pan","doi":"10.1016/j.nanoen.2025.111055","DOIUrl":"10.1016/j.nanoen.2025.111055","url":null,"abstract":"<div><div>Efficient perovskite light-emitting diodes (PeLEDs) that emit at wavelengths between 620 and 650 nm are key to the next generation of ultrahigh-definition displays. Quantum-confined CsPbI<sub>3</sub> quantum dots (QDs) can overcome the intrinsically narrow bandgap, thus meeting the requirements of pure red emitters. However, the inherent instability and poor carrier transport properties of CsPbI<sub>3</sub> QDs hinder their device performance. Herein, we introduce thiophene-2-sulfonamide (2-ThSA), a short-chain multifunctional ligand, to passivate surface defects and enhance carrier transport in CsPbI<sub>3</sub> QDs. The 2-ThSA treated QDs exhibited a near 100 % photoluminescence quantum yield (PLQY), observably improved stability, and enhanced carrier transport properties due to the strong interactions between the CsPbI<sub>3</sub> QDs and multiple functional groups of 2-ThSA. PeLEDs based on these modified QDs demonstrated superior spectral stability, reached a remarkable external quantum efficiency (EQE) of 28.73 %, and displayed low efficiency roll-off. Additionally, large-area devices (64 mm<sup>2</sup>) showed an EQE exceeding 20 %, highlighting the potential of our approach for high-performance, large-scale displays.</div></div>","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":"140 ","pages":"Article 111055"},"PeriodicalIF":16.8,"publicationDate":"2025-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143853119","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-04-21DOI: 10.1016/j.nanoen.2025.111057
Xiaoyu Yang, Peng Wang, Xuze Tang, Zinan Wang, Jihao Ye, Wei Duan, Ying Yue, Tiejun Ci, Yunpeng Liu, Yang Ju
The advancement of flexible quasi-solid-state thermoelectric cells (TECs) presents new possibilities for wearable electronics. However, challenges such as mechanical strength, temperature sensitivity, and limited power output hinder broader applications. This study proposes a dual strategy to enhance both mechanical properties and thermoelectrochemical performance of TECs using [Fe(CN)6]3–/4–. By leveraging the Hofmeister effect and non-covalent interactions, the mechanical strength of NIPAM hydrogel electrolytes was increased from 4.86 kPa to 38.9 kPa through the addition of [2-(methacryloxy)ethyl]dimethyl-(3-sulfonatopropyl)ammonium hydroxide (MEMSA) and polar solvent DMF, achieving an extensibility of nearly 2500%. Additionally, modifications with MEMSA hydroxide and guanidine hydrochloride improved the solvation structure of [Fe(CN)6]3–, resulting in an enhanced Seebeck coefficient from 0.72 to 5.632 mV K–1. The developed quasi-solid-state TECs demonstrated a power density of 0.624 mW m-²·K-², showing marked performance improvements. The material's properties, based on NIPAM and MEMSA, also support a wide operating temperature range. Furthermore, an intelligent remote-controlled car was designed featuring a temperature feedback system powered by deep learning algorithms, allowing for real-time monitoring and control, thus showcasing significant potential for future wearable electronic applications.
{"title":"Dual-Modal Hydrogels with Synergistically Enhanced Mechanical-Thermoelectric Performance for Intelligent Wearable Sensing and Automotive Temperature Feedback Systems","authors":"Xiaoyu Yang, Peng Wang, Xuze Tang, Zinan Wang, Jihao Ye, Wei Duan, Ying Yue, Tiejun Ci, Yunpeng Liu, Yang Ju","doi":"10.1016/j.nanoen.2025.111057","DOIUrl":"https://doi.org/10.1016/j.nanoen.2025.111057","url":null,"abstract":"The advancement of flexible quasi-solid-state thermoelectric cells (TECs) presents new possibilities for wearable electronics. However, challenges such as mechanical strength, temperature sensitivity, and limited power output hinder broader applications. This study proposes a dual strategy to enhance both mechanical properties and thermoelectrochemical performance of TECs using [Fe(CN)<sub>6</sub>]<sup>3–/4–</sup>. By leveraging the Hofmeister effect and non-covalent interactions, the mechanical strength of NIPAM hydrogel electrolytes was increased from 4.86 kPa to 38.9 kPa through the addition of [2-(methacryloxy)ethyl]dimethyl-(3-sulfonatopropyl)ammonium hydroxide (MEMSA) and polar solvent DMF, achieving an extensibility of nearly 2500%. Additionally, modifications with MEMSA hydroxide and guanidine hydrochloride improved the solvation structure of [Fe(CN)<sub>6</sub>]<sup>3–</sup>, resulting in an enhanced Seebeck coefficient from 0.72 to 5.632<!-- --> <!-- -->mV<!-- --> <!-- -->K<sup>–1</sup>. The developed quasi-solid-state TECs demonstrated a power density of 0.624<!-- --> <!-- -->mW<!-- --> <!-- -->m<sup>-</sup>²·K<sup>-</sup>², showing marked performance improvements. The material's properties, based on NIPAM and MEMSA, also support a wide operating temperature range. Furthermore, an intelligent remote-controlled car was designed featuring a temperature feedback system powered by deep learning algorithms, allowing for real-time monitoring and control, thus showcasing significant potential for future wearable electronic applications.","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":"17 1","pages":""},"PeriodicalIF":17.6,"publicationDate":"2025-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143853121","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-04-21DOI: 10.1016/j.nanoen.2025.111053
Feishi Shan, Li Yan, Zhihong Wei, Chengshuang Liao, Jing Li, Zhouyu Wang, Yuxi Tian, Leyong Wang
The energy crisis is a significant issue that the world is facing in the 21st century. Thermoelectric energy transfer emerges as a promising solution that can convert heat energy into electric energy. However, there remains a big challenge that the efficient utilization of light energy to achieve continuous electricity ultimately. The red emitting carbon dots (RCDs) could self-assemble into the aggregates (ARCDs) via cooperative solvophobic effect combined with hydrogen bonding interaction, which exhibits considerably enhanced absorption with excellent photothermal conversion effect (PCE ≈ 62%) compared to its dispersed state. Moreover, these aggregates were then loaded onto semiconductors to create solar-driven photothermoelectric generator (LHE), with unprecedented output efficiency (Voutput ≈ 5000 mV, Ioutput ≈ 25 mA, and Poutput ≈ 123 mW), which can easily charge smartphones outdoors. This work offers a supramolecular chemistry perspective for the construction of CDs aggregates and presents an sustainable approach towards achieving continuous photothermoelectric energy transfer.
{"title":"Efficient solar-driven photothermoelectric generator facilitated by carbon dots aggregates","authors":"Feishi Shan, Li Yan, Zhihong Wei, Chengshuang Liao, Jing Li, Zhouyu Wang, Yuxi Tian, Leyong Wang","doi":"10.1016/j.nanoen.2025.111053","DOIUrl":"https://doi.org/10.1016/j.nanoen.2025.111053","url":null,"abstract":"The energy crisis is a significant issue that the world is facing in the 21st century. Thermoelectric energy transfer emerges as a promising solution that can convert heat energy into electric energy. However, there remains a big challenge that the efficient utilization of light energy to achieve continuous electricity ultimately. The red emitting carbon dots (<strong>RCDs</strong>) could self-assemble into the aggregates (<strong>ARCDs</strong>) via cooperative solvophobic effect combined with hydrogen bonding interaction, which exhibits considerably enhanced absorption with excellent photothermal conversion effect (PCE ≈ 62%) compared to its dispersed state. Moreover, these aggregates were then loaded onto semiconductors to create solar-driven photothermoelectric generator (<strong>LHE</strong>), with unprecedented output efficiency (V<sub>output</sub> ≈ 5000<!-- --> <!-- -->mV, I<sub>output</sub> ≈ 25<!-- --> <!-- -->mA, and P<sub>output</sub> ≈ 123<!-- --> <!-- -->mW), which can easily charge smartphones outdoors. This work offers a supramolecular chemistry perspective for the construction of CDs aggregates and presents an sustainable approach towards achieving continuous photothermoelectric energy transfer.","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":"12 1","pages":""},"PeriodicalIF":17.6,"publicationDate":"2025-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143858188","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-04-21DOI: 10.1016/j.nanoen.2025.111061
Hao Fan , Zu’an Zeng , Chunyu Deng , Xinyu Chen , Zhixin Di , Wei Lan , Kaitong He , Peiran Lin , Yuli Luo , Wenlong Wang , Yadong Tang
Triboelectric nanogenerators (TENGs) are a promising solution for wearable sensors. Solid-liquid TENGs (SL-TENGs) outperform solid-solid TENGs in contact efficiency and environmental stability but face challenges like lower output power and wettability issues. This study presents a high-performance SL-TENG, termed MC-TENG, by combining a lotus leaf-inspired microstructure with alkalization treatment on solid triboelectric layers and utilizing liquid metal as both the triboelectric layer and electrode. This design enhances surface charge density, roughness, and wettability, achieving a record power density of 33.54 W/m² under small-scale, low-frequency operation. The MC-TENG exhibits high sensitivity (7.1 V/MPa), rapid response times (17 ms and 23 ms), and robust performance across varied conditions. Its versatile applications span Morse code signaling, human motion monitoring, and machine learning-enabled handwriting recognition. This work provides a novel and effective pathway for advancing SL-TENG performance, laying a foundation for its wider adoption in wearable sensing technologies.
{"title":"High-performance solid-liquid triboelectric nanogenerator enabled by dual physicochemical modification for wearable sensing","authors":"Hao Fan , Zu’an Zeng , Chunyu Deng , Xinyu Chen , Zhixin Di , Wei Lan , Kaitong He , Peiran Lin , Yuli Luo , Wenlong Wang , Yadong Tang","doi":"10.1016/j.nanoen.2025.111061","DOIUrl":"10.1016/j.nanoen.2025.111061","url":null,"abstract":"<div><div>Triboelectric nanogenerators (TENGs) are a promising solution for wearable sensors. Solid-liquid TENGs (SL-TENGs) outperform solid-solid TENGs in contact efficiency and environmental stability but face challenges like lower output power and wettability issues. This study presents a high-performance SL-TENG, termed MC-TENG, by combining a lotus leaf-inspired microstructure with alkalization treatment on solid triboelectric layers and utilizing liquid metal as both the triboelectric layer and electrode. This design enhances surface charge density, roughness, and wettability, achieving a record power density of 33.54 W/m² under small-scale, low-frequency operation. The MC-TENG exhibits high sensitivity (7.1 V/MPa), rapid response times (17 ms and 23 ms), and robust performance across varied conditions. Its versatile applications span Morse code signaling, human motion monitoring, and machine learning-enabled handwriting recognition. This work provides a novel and effective pathway for advancing SL-TENG performance, laying a foundation for its wider adoption in wearable sensing technologies.</div></div>","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":"140 ","pages":"Article 111061"},"PeriodicalIF":16.8,"publicationDate":"2025-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143858187","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：