{"title":"利用导电钝化剂下转换紫外线,提高过氧化物太阳能电池的效率和稳定性","authors":"Honglei Yu, Zhengyan He, Xiangheng Liu, Zhiqiang Zhang, Yongjia Li, Shufang Zhang, Qi Zhang, Changlin Yao, Hai Zhong","doi":"10.1039/d4ta05782a","DOIUrl":null,"url":null,"abstract":"The significant progress of perovskite solar cells (PSCs) in the past decade has shown enormous potential for industrialization; however, several critical issues such as long-term stability and potential lead leakage still need to be addressed. It is a practical challenge to overcome these issues through one approach. Herein, we introduce an ultraviolet absorbent and conductive passivation agent 4,4′-diaminostilbene-2,2′-disulfonic acid (DSDA) into SnO<small><sub>2</sub></small> to down-convert ultraviolet light into visible light and enhance the conductivity of SnO<small><sub>2</sub></small>, thereby improving the light-stability and performance of PSCs. The amphoteric DSDA molecule with four functional groups can also passivate defects on the surface of SnO<small><sub>2</sub></small> films, affect the crystal growth of the perovskite layer, and provide <em>in situ</em> protection against lead leakage. Our results show that the power conversion efficiency (PCE) of the PSCs increases evidently from 22.95% to 25.09% owing to the simultaneous enhancement of the photoelectric properties of SnO<small><sub>2</sub></small> films and the critical SnO<small><sub>2</sub></small>/perovskite interfaces by adding DSDA into SnO<small><sub>2</sub></small> films. Importantly, the DSDA-optimized PSCs without encapsulation exhibited enhanced operational and UV-light stability, as well as <em>in situ</em> fixation of leaked lead ions. This simultaneous enhancement of both optical and electrical properties of functional layers <em>via</em> adding a multifunctional organic compound provides an efficient strategy to effectively improve the efficiency and long-term stability of PSCs.","PeriodicalId":82,"journal":{"name":"Journal of Materials Chemistry A","volume":null,"pages":null},"PeriodicalIF":10.7000,"publicationDate":"2024-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Down-converting ultraviolet light using a conductive passivator to enhance the efficiency and stability of perovskite solar cells\",\"authors\":\"Honglei Yu, Zhengyan He, Xiangheng Liu, Zhiqiang Zhang, Yongjia Li, Shufang Zhang, Qi Zhang, Changlin Yao, Hai Zhong\",\"doi\":\"10.1039/d4ta05782a\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The significant progress of perovskite solar cells (PSCs) in the past decade has shown enormous potential for industrialization; however, several critical issues such as long-term stability and potential lead leakage still need to be addressed. It is a practical challenge to overcome these issues through one approach. Herein, we introduce an ultraviolet absorbent and conductive passivation agent 4,4′-diaminostilbene-2,2′-disulfonic acid (DSDA) into SnO<small><sub>2</sub></small> to down-convert ultraviolet light into visible light and enhance the conductivity of SnO<small><sub>2</sub></small>, thereby improving the light-stability and performance of PSCs. The amphoteric DSDA molecule with four functional groups can also passivate defects on the surface of SnO<small><sub>2</sub></small> films, affect the crystal growth of the perovskite layer, and provide <em>in situ</em> protection against lead leakage. Our results show that the power conversion efficiency (PCE) of the PSCs increases evidently from 22.95% to 25.09% owing to the simultaneous enhancement of the photoelectric properties of SnO<small><sub>2</sub></small> films and the critical SnO<small><sub>2</sub></small>/perovskite interfaces by adding DSDA into SnO<small><sub>2</sub></small> films. Importantly, the DSDA-optimized PSCs without encapsulation exhibited enhanced operational and UV-light stability, as well as <em>in situ</em> fixation of leaked lead ions. This simultaneous enhancement of both optical and electrical properties of functional layers <em>via</em> adding a multifunctional organic compound provides an efficient strategy to effectively improve the efficiency and long-term stability of PSCs.\",\"PeriodicalId\":82,\"journal\":{\"name\":\"Journal of Materials Chemistry A\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":10.7000,\"publicationDate\":\"2024-10-11\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Materials Chemistry A\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://doi.org/10.1039/d4ta05782a\",\"RegionNum\":2,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"CHEMISTRY, PHYSICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Materials Chemistry A","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.1039/d4ta05782a","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
Down-converting ultraviolet light using a conductive passivator to enhance the efficiency and stability of perovskite solar cells
The significant progress of perovskite solar cells (PSCs) in the past decade has shown enormous potential for industrialization; however, several critical issues such as long-term stability and potential lead leakage still need to be addressed. It is a practical challenge to overcome these issues through one approach. Herein, we introduce an ultraviolet absorbent and conductive passivation agent 4,4′-diaminostilbene-2,2′-disulfonic acid (DSDA) into SnO2 to down-convert ultraviolet light into visible light and enhance the conductivity of SnO2, thereby improving the light-stability and performance of PSCs. The amphoteric DSDA molecule with four functional groups can also passivate defects on the surface of SnO2 films, affect the crystal growth of the perovskite layer, and provide in situ protection against lead leakage. Our results show that the power conversion efficiency (PCE) of the PSCs increases evidently from 22.95% to 25.09% owing to the simultaneous enhancement of the photoelectric properties of SnO2 films and the critical SnO2/perovskite interfaces by adding DSDA into SnO2 films. Importantly, the DSDA-optimized PSCs without encapsulation exhibited enhanced operational and UV-light stability, as well as in situ fixation of leaked lead ions. This simultaneous enhancement of both optical and electrical properties of functional layers via adding a multifunctional organic compound provides an efficient strategy to effectively improve the efficiency and long-term stability of PSCs.
期刊介绍:
The Journal of Materials Chemistry A, B & C covers a wide range of high-quality studies in the field of materials chemistry, with each section focusing on specific applications of the materials studied. Journal of Materials Chemistry A emphasizes applications in energy and sustainability, including topics such as artificial photosynthesis, batteries, and fuel cells. Journal of Materials Chemistry B focuses on applications in biology and medicine, while Journal of Materials Chemistry C covers applications in optical, magnetic, and electronic devices. Example topic areas within the scope of Journal of Materials Chemistry A include catalysis, green/sustainable materials, sensors, and water treatment, among others.