Yilin Chang, Le Liu, Lu Qi, Jiajia Du, Qinglin Du, Zhibin Yu, Zhiwei Ma, Tonggang Jiu, Yuliang Li
{"title":"Highly Oriented and Ordered Co‐Assembly Monolayers for Inverted Perovskite Solar Cells","authors":"Yilin Chang, Le Liu, Lu Qi, Jiajia Du, Qinglin Du, Zhibin Yu, Zhiwei Ma, Tonggang Jiu, Yuliang Li","doi":"10.1002/anie.202418883","DOIUrl":null,"url":null,"abstract":"Perovskite solar cells with inverted architecture have remarkable power conversion efficiency (PCE) and operating stability based on self‐assembled molecules (SAMs) hole transport layer. Homogeneous distribution and covalent binding mode of SAM monolayers are critical to improving interfacial property and reducing interfacial losses, which can be achieved through molecular design and co‐assembly strategy. Here, we propose co‐assembly strategy with SAM by employing a novel 2‐D π‐conjugated structure graphdiyne derivative (PAG) with phosphoric acid groups. Through the π‐π interaction and hydrogen bonding between PAG and SAM, the enhanced tridentate anchoring and highly ordered molecular orientation perpendicular to the substrate are successfully achieved. The improvement of interfacial characteristics further optimizes the crystalline quality and buried interface properties of perovskite films, allowing us to achieve a remarkable PCE of 26.10% under standard illumination.","PeriodicalId":125,"journal":{"name":"Angewandte Chemie International Edition","volume":"6 1","pages":""},"PeriodicalIF":16.1000,"publicationDate":"2024-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Angewandte Chemie International Edition","FirstCategoryId":"92","ListUrlMain":"https://doi.org/10.1002/anie.202418883","RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
Perovskite solar cells with inverted architecture have remarkable power conversion efficiency (PCE) and operating stability based on self‐assembled molecules (SAMs) hole transport layer. Homogeneous distribution and covalent binding mode of SAM monolayers are critical to improving interfacial property and reducing interfacial losses, which can be achieved through molecular design and co‐assembly strategy. Here, we propose co‐assembly strategy with SAM by employing a novel 2‐D π‐conjugated structure graphdiyne derivative (PAG) with phosphoric acid groups. Through the π‐π interaction and hydrogen bonding between PAG and SAM, the enhanced tridentate anchoring and highly ordered molecular orientation perpendicular to the substrate are successfully achieved. The improvement of interfacial characteristics further optimizes the crystalline quality and buried interface properties of perovskite films, allowing us to achieve a remarkable PCE of 26.10% under standard illumination.
期刊介绍:
Angewandte Chemie, a journal of the German Chemical Society (GDCh), maintains a leading position among scholarly journals in general chemistry with an impressive Impact Factor of 16.6 (2022 Journal Citation Reports, Clarivate, 2023). Published weekly in a reader-friendly format, it features new articles almost every day. Established in 1887, Angewandte Chemie is a prominent chemistry journal, offering a dynamic blend of Review-type articles, Highlights, Communications, and Research Articles on a weekly basis, making it unique in the field.