Academic Journal

Enhanced charge carrier transport and defects mitigation of passivation layer for efficient perovskite solar cells

التفاصيل البيبلوغرافية
العنوان: Enhanced charge carrier transport and defects mitigation of passivation layer for efficient perovskite solar cells
المؤلفون: Zihan Qu, Yang Zhao, Fei Ma, Le Mei, Xian-Kai Chen, Haitao Zhou, Xinbo Chu, Yingguo Yang, Qi Jiang, Xingwang Zhang, Jingbi You
المصدر: Nature Communications, Vol 15, Iss 1, Pp 1-11 (2024)
بيانات النشر: Nature Portfolio, 2024.
سنة النشر: 2024
المجموعة: LCC:Science
مصطلحات موضوعية: Science
الوصف: Abstract Surface passivation has been developed as an effective strategy to reduce trap-state density and suppress non-radiation recombination process in perovskite solar cells. However, passivation agents usually own poor conductivity and hold negative impact on the charge carrier transport in device. Here, we report a binary and synergistical post-treatment method by blending 4-tert-butyl-benzylammonium iodide with phenylpropylammonium iodide and spin-coating on perovskite surface to form passivation layer. The binary and synergistical post-treated films show enhanced crystallinity and improved molecular packing as well as better energy band alignment, benefiting for the hole extraction and transfer. Moreover, the surface defects are further passivated compared with unary passivation. Based on the strategy, a record-certified quasi-steady power conversion efficiency of 26.0% perovskite solar cells is achieved. The devices could maintain 81% of initial efficiency after 450 h maximum power point tracking.
نوع الوثيقة: article
وصف الملف: electronic resource
اللغة: English
تدمد: 2041-1723
Relation: https://doaj.org/toc/2041-1723
DOI: 10.1038/s41467-024-52925-y
URL الوصول: https://doaj.org/article/00e5ed577ab64cb1850d0e630861de9d
رقم الانضمام: edsdoj.00e5ed577ab64cb1850d0e630861de9d
قاعدة البيانات: Directory of Open Access Journals
الوصف
تدمد:20411723
DOI:10.1038/s41467-024-52925-y