{"title":"基于表面重构和能级排列的高效稳定的二维/三维过氧化物太阳能电池","authors":"Qiaohui Li, Hang Liu, Tong Zhou","doi":"10.1007/s11426-024-2115-y","DOIUrl":null,"url":null,"abstract":"<div><p>Realizing simultaneous adjustment of energy levels and work functions in two-dimensional/three-dimensional (2D/3D) perovskite solar cells (PSCs) is a challenge. Here, a pseudohalide 3,5-bis (trifluoromethyl) benzylammonium tetrafluoroborate (TF-PMABF<sub>4</sub>) was used to react with unreacted PbI<sub>2</sub> on the surface of 3D bulky perovskite to form a mixed halide of 2D perovskite denoted (TF-PMA)<sub>2</sub>FA<sub>2</sub>Pb<sub>3</sub>I<sub>8</sub>(BF<sub>4</sub>)<sub>2</sub>. This novel 2D/3D perovskite enables the simultaneous adjustment of energy levels and work functions on the surface of active layers. Due to the significantly enhanced quality of 2D/3D perovskite film, decreased surface defects and increased charge carrier lifetime, the 2D/3D PSCs exhibit an outstanding power conversion efficiency (PCE) of 25.15% and a high <i>V</i><sub>OC</sub> of 1.194 V. Importantly, 2D/3D PSCs exhibit remarkable enhancements in environmental stability, unencapsulated devices retaining more than 90% of their initial PCE at 50% humidity for 2,280 h.\n</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":772,"journal":{"name":"Science China Chemistry","volume":"67 9","pages":"3083 - 3090"},"PeriodicalIF":10.4000,"publicationDate":"2024-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Highly efficient and stable 2D/3D perovskite solar cells based on surface reconstruction and energy level alignment\",\"authors\":\"Qiaohui Li, Hang Liu, Tong Zhou\",\"doi\":\"10.1007/s11426-024-2115-y\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Realizing simultaneous adjustment of energy levels and work functions in two-dimensional/three-dimensional (2D/3D) perovskite solar cells (PSCs) is a challenge. Here, a pseudohalide 3,5-bis (trifluoromethyl) benzylammonium tetrafluoroborate (TF-PMABF<sub>4</sub>) was used to react with unreacted PbI<sub>2</sub> on the surface of 3D bulky perovskite to form a mixed halide of 2D perovskite denoted (TF-PMA)<sub>2</sub>FA<sub>2</sub>Pb<sub>3</sub>I<sub>8</sub>(BF<sub>4</sub>)<sub>2</sub>. This novel 2D/3D perovskite enables the simultaneous adjustment of energy levels and work functions on the surface of active layers. Due to the significantly enhanced quality of 2D/3D perovskite film, decreased surface defects and increased charge carrier lifetime, the 2D/3D PSCs exhibit an outstanding power conversion efficiency (PCE) of 25.15% and a high <i>V</i><sub>OC</sub> of 1.194 V. Importantly, 2D/3D PSCs exhibit remarkable enhancements in environmental stability, unencapsulated devices retaining more than 90% of their initial PCE at 50% humidity for 2,280 h.\\n</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>\",\"PeriodicalId\":772,\"journal\":{\"name\":\"Science China Chemistry\",\"volume\":\"67 9\",\"pages\":\"3083 - 3090\"},\"PeriodicalIF\":10.4000,\"publicationDate\":\"2024-08-06\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Science China Chemistry\",\"FirstCategoryId\":\"1\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s11426-024-2115-y\",\"RegionNum\":1,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"CHEMISTRY, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Science China Chemistry","FirstCategoryId":"1","ListUrlMain":"https://link.springer.com/article/10.1007/s11426-024-2115-y","RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
Highly efficient and stable 2D/3D perovskite solar cells based on surface reconstruction and energy level alignment
Realizing simultaneous adjustment of energy levels and work functions in two-dimensional/three-dimensional (2D/3D) perovskite solar cells (PSCs) is a challenge. Here, a pseudohalide 3,5-bis (trifluoromethyl) benzylammonium tetrafluoroborate (TF-PMABF4) was used to react with unreacted PbI2 on the surface of 3D bulky perovskite to form a mixed halide of 2D perovskite denoted (TF-PMA)2FA2Pb3I8(BF4)2. This novel 2D/3D perovskite enables the simultaneous adjustment of energy levels and work functions on the surface of active layers. Due to the significantly enhanced quality of 2D/3D perovskite film, decreased surface defects and increased charge carrier lifetime, the 2D/3D PSCs exhibit an outstanding power conversion efficiency (PCE) of 25.15% and a high VOC of 1.194 V. Importantly, 2D/3D PSCs exhibit remarkable enhancements in environmental stability, unencapsulated devices retaining more than 90% of their initial PCE at 50% humidity for 2,280 h.
期刊介绍：
Science China Chemistry, co-sponsored by the Chinese Academy of Sciences and the National Natural Science Foundation of China and published by Science China Press, publishes high-quality original research in both basic and applied chemistry. Indexed by Science Citation Index, it is a premier academic journal in the field.
Categories of articles include:
Highlights. Brief summaries and scholarly comments on recent research achievements in any field of chemistry.
Perspectives. Concise reports on thelatest chemistry trends of interest to scientists worldwide, including discussions of research breakthroughs and interpretations of important science and funding policies.
Reviews. In-depth summaries of representative results and achievements of the past 5–10 years in selected topics based on or closely related to the research expertise of the authors, providing a thorough assessment of the significance, current status, and future research directions of the field.
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