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2D materials for conducting holes from grain boundaries in perovskite solar cells

التفاصيل البيبلوغرافية
العنوان: 2D materials for conducting holes from grain boundaries in perovskite solar cells
المؤلفون: Peng You, Guanqi Tang, Jiupeng Cao, Dong Shen, Tsz-Wai Ng, Zafer Hawash, Naixiang Wang, Chun-Ki Liu, Wei Lu, Qidong Tai, Yabing Qi, Chun-Sing Lee, Feng Yan
المصدر: Light: Science & Applications, Vol 10, Iss 1, Pp 1-12 (2021)
بيانات النشر: Nature Publishing Group, 2021.
سنة النشر: 2021
المجموعة: LCC:Applied optics. Photonics
LCC:Optics. Light
مصطلحات موضوعية: Applied optics. Photonics, TA1501-1820, Optics. Light, QC350-467
الوصف: Abstract Grain boundaries in organic–inorganic halide perovskite solar cells (PSCs) have been found to be detrimental to the photovoltaic performance of devices. Here, we develop a unique approach to overcome this problem by modifying the edges of perovskite grain boundaries with flakes of high-mobility two-dimensional (2D) materials via a convenient solution process. A synergistic effect between the 2D flakes and perovskite grain boundaries is observed for the first time, which can significantly enhance the performance of PSCs. We find that the 2D flakes can conduct holes from the grain boundaries to the hole transport layers in PSCs, thereby making hole channels in the grain boundaries of the devices. Hence, 2D flakes with high carrier mobilities and short distances to grain boundaries can induce a more pronounced performance enhancement of the devices. This work presents a cost-effective strategy for improving the performance of PSCs by using high-mobility 2D materials.
نوع الوثيقة: article
وصف الملف: electronic resource
اللغة: English
تدمد: 2047-7538
Relation: https://doaj.org/toc/2047-7538
DOI: 10.1038/s41377-021-00515-8
URL الوصول: https://doaj.org/article/332e0471245a45a0af2c4babc1508c85
رقم الأكسشن: edsdoj.332e0471245a45a0af2c4babc1508c85
قاعدة البيانات: Directory of Open Access Journals
الوصف
تدمد:20477538
DOI:10.1038/s41377-021-00515-8