{"title":"利用长烷基膦酸实现高效的 1.77 eV 带隙过氧化物和全过氧化物串联太阳能电池","authors":"Hongling Guan, Shiqiang Fu, Guojun Zeng, Weiqing Chen, Chen Wang, Hongsen Cui, Dexin Pu, Peng Jia, Weiwei Meng, Guojia Fang, Weijun Ke","doi":"10.1039/d4ee02483d","DOIUrl":null,"url":null,"abstract":"Efficient wide-bandgap (WBG) perovskite solar cells are requisite for constructing superior tandem solar cells. However, their performance has been limited by numerous vacancy defects in the films and suboptimal crystal quality. To tackle this challenge, we propose using a functionalized long-alkyl phosphonic acid molecule, dodecylphosphonic acid (DDPA), as an additive in WBG perovskite precursors. The phosphonic acid group in DDPA molecules interacts with formamidine cations, halogen anions, and undercoordinated Pb<small><sup>2+</sup></small>, inhibiting the formation of vacancies, while the long-alkyl groups in DDPA molecules constrain grain tilting during growth. Consequently, the addition of DDPA significantly increases grain sizes, promotes crystal orientation, and reduces vacancy defects, leading to substantially reduced photo-generated carrier recombination in the bulk and at the interface of WBG perovskites. As a result, opaque and semi-transparent 1.77 eV-bandgap solar cells fulfill high power conversion efficiencies of 20.20% and 18.49%, respectively. Furthermore, two-terminal and four-terminal all-perovskite tandem cells deliver remarkable efficiencies of 27.41% (27.20% stabilized) and 28.65% (28.50% stabilized), respectively, revealing significant potential for efficient multijunction solar cell applications.","PeriodicalId":72,"journal":{"name":"Energy & Environmental Science","volume":null,"pages":null},"PeriodicalIF":32.4000,"publicationDate":"2024-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Efficient 1.77 eV-bandgap perovskite and all-perovskite tandem solar cells enabled by long-alkyl phosphonic acid\",\"authors\":\"Hongling Guan, Shiqiang Fu, Guojun Zeng, Weiqing Chen, Chen Wang, Hongsen Cui, Dexin Pu, Peng Jia, Weiwei Meng, Guojia Fang, Weijun Ke\",\"doi\":\"10.1039/d4ee02483d\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Efficient wide-bandgap (WBG) perovskite solar cells are requisite for constructing superior tandem solar cells. However, their performance has been limited by numerous vacancy defects in the films and suboptimal crystal quality. To tackle this challenge, we propose using a functionalized long-alkyl phosphonic acid molecule, dodecylphosphonic acid (DDPA), as an additive in WBG perovskite precursors. The phosphonic acid group in DDPA molecules interacts with formamidine cations, halogen anions, and undercoordinated Pb<small><sup>2+</sup></small>, inhibiting the formation of vacancies, while the long-alkyl groups in DDPA molecules constrain grain tilting during growth. Consequently, the addition of DDPA significantly increases grain sizes, promotes crystal orientation, and reduces vacancy defects, leading to substantially reduced photo-generated carrier recombination in the bulk and at the interface of WBG perovskites. As a result, opaque and semi-transparent 1.77 eV-bandgap solar cells fulfill high power conversion efficiencies of 20.20% and 18.49%, respectively. Furthermore, two-terminal and four-terminal all-perovskite tandem cells deliver remarkable efficiencies of 27.41% (27.20% stabilized) and 28.65% (28.50% stabilized), respectively, revealing significant potential for efficient multijunction solar cell applications.\",\"PeriodicalId\":72,\"journal\":{\"name\":\"Energy & Environmental Science\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":32.4000,\"publicationDate\":\"2024-10-02\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Energy & Environmental Science\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://doi.org/10.1039/d4ee02483d\",\"RegionNum\":1,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"CHEMISTRY, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Energy & Environmental Science","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.1039/d4ee02483d","RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
Efficient 1.77 eV-bandgap perovskite and all-perovskite tandem solar cells enabled by long-alkyl phosphonic acid
Efficient wide-bandgap (WBG) perovskite solar cells are requisite for constructing superior tandem solar cells. However, their performance has been limited by numerous vacancy defects in the films and suboptimal crystal quality. To tackle this challenge, we propose using a functionalized long-alkyl phosphonic acid molecule, dodecylphosphonic acid (DDPA), as an additive in WBG perovskite precursors. The phosphonic acid group in DDPA molecules interacts with formamidine cations, halogen anions, and undercoordinated Pb2+, inhibiting the formation of vacancies, while the long-alkyl groups in DDPA molecules constrain grain tilting during growth. Consequently, the addition of DDPA significantly increases grain sizes, promotes crystal orientation, and reduces vacancy defects, leading to substantially reduced photo-generated carrier recombination in the bulk and at the interface of WBG perovskites. As a result, opaque and semi-transparent 1.77 eV-bandgap solar cells fulfill high power conversion efficiencies of 20.20% and 18.49%, respectively. Furthermore, two-terminal and four-terminal all-perovskite tandem cells deliver remarkable efficiencies of 27.41% (27.20% stabilized) and 28.65% (28.50% stabilized), respectively, revealing significant potential for efficient multijunction solar cell applications.
期刊介绍:
Energy & Environmental Science, a peer-reviewed scientific journal, publishes original research and review articles covering interdisciplinary topics in the (bio)chemical and (bio)physical sciences, as well as chemical engineering disciplines. Published monthly by the Royal Society of Chemistry (RSC), a not-for-profit publisher, Energy & Environmental Science is recognized as a leading journal. It boasts an impressive impact factor of 8.500 as of 2009, ranking 8th among 140 journals in the category "Chemistry, Multidisciplinary," second among 71 journals in "Energy & Fuels," second among 128 journals in "Engineering, Chemical," and first among 181 scientific journals in "Environmental Sciences."
Energy & Environmental Science publishes various types of articles, including Research Papers (original scientific work), Review Articles, Perspectives, and Minireviews (feature review-type articles of broad interest), Communications (original scientific work of an urgent nature), Opinions (personal, often speculative viewpoints or hypotheses on current topics), and Analysis Articles (in-depth examination of energy-related issues).