{"title":"Doped‐NiOx Seed Layer on Textured Substrates for Low‐Loss Contacts in Perovskite Solar Cells","authors":"Ziyue Feng, Minwoo Lee, Ruoming Tian, Robert Patterson, Yu Wang, Chen Qian, Kaiwen Sun, Ziheng Liu, Jae Sung Yun, Menglei Xu, Xinyu Zhang, Hao Jin, Martin Green, Mingrui He, Zhen Li, Xiaojing Hao","doi":"10.1002/aenm.202405016","DOIUrl":null,"url":null,"abstract":"Further improvements in photocurrent are essential to unlock higher efficiencies in inverted (p‐i‐n) perovskite solar cells (PSCs). While the use of textured substrates has proven successful in normal structure (n‐i‐p) devices to improve photocurrent, applying the same approach to p‐i‐n architecture is challenging due to difficulties in depositing ultra‐thin self‐assembled monolayers (SAMs) on uneven surfaces. To overcome this limitation, a rubidium‐based ammonia treatment for nickel oxide seed layers is proposed. This strategy enhances the surface homogeneity of hole‐transporting layers on textured substrates, facilitates perovskite defect passivation, and improves SAM anchoring, collectively enhancing hole extraction and suppressing non‐radiative recombination. As a result, the optimized PSCs achieves a champion power conversion efficiency (PCE) of 25.66% with a fill factor of 86.35% and demonstrates excellent long‐term stability, retaining 95% of their initial PCE after 1,000 hours following ISOS‐L‐2I protocol. Moreover, the scalability of this approach is validated with a 1 cm<jats:sup>2</jats:sup> active area device, achieving a PCE of 23.90%. These findings highlight the potential of the strategy to address key challenges in PSC interfaces and advance the commercial viability of high‐performance perovskite photovoltaics.","PeriodicalId":111,"journal":{"name":"Advanced Energy Materials","volume":"1 1","pages":""},"PeriodicalIF":24.4000,"publicationDate":"2024-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Advanced Energy Materials","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.1002/aenm.202405016","RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
引用次数: 0
Abstract
Further improvements in photocurrent are essential to unlock higher efficiencies in inverted (p‐i‐n) perovskite solar cells (PSCs). While the use of textured substrates has proven successful in normal structure (n‐i‐p) devices to improve photocurrent, applying the same approach to p‐i‐n architecture is challenging due to difficulties in depositing ultra‐thin self‐assembled monolayers (SAMs) on uneven surfaces. To overcome this limitation, a rubidium‐based ammonia treatment for nickel oxide seed layers is proposed. This strategy enhances the surface homogeneity of hole‐transporting layers on textured substrates, facilitates perovskite defect passivation, and improves SAM anchoring, collectively enhancing hole extraction and suppressing non‐radiative recombination. As a result, the optimized PSCs achieves a champion power conversion efficiency (PCE) of 25.66% with a fill factor of 86.35% and demonstrates excellent long‐term stability, retaining 95% of their initial PCE after 1,000 hours following ISOS‐L‐2I protocol. Moreover, the scalability of this approach is validated with a 1 cm2 active area device, achieving a PCE of 23.90%. These findings highlight the potential of the strategy to address key challenges in PSC interfaces and advance the commercial viability of high‐performance perovskite photovoltaics.
期刊介绍:
Established in 2011, Advanced Energy Materials is an international, interdisciplinary, English-language journal that focuses on materials used in energy harvesting, conversion, and storage. It is regarded as a top-quality journal alongside Advanced Materials, Advanced Functional Materials, and Small.
With a 2022 Impact Factor of 27.8, Advanced Energy Materials is considered a prime source for the best energy-related research. The journal covers a wide range of topics in energy-related research, including organic and inorganic photovoltaics, batteries and supercapacitors, fuel cells, hydrogen generation and storage, thermoelectrics, water splitting and photocatalysis, solar fuels and thermosolar power, magnetocalorics, and piezoelectronics.
The readership of Advanced Energy Materials includes materials scientists, chemists, physicists, and engineers in both academia and industry. The journal is indexed in various databases and collections, such as Advanced Technologies & Aerospace Database, FIZ Karlsruhe, INSPEC (IET), Science Citation Index Expanded, Technology Collection, and Web of Science, among others.