Heterojunction Incorporating Perovskite and Microporous Metal–Organic Framework Nanocrystals for Efficient and Stable Solar Cells

In this paper, we present a facile approach to enhance the efficiency and stability of perovskite solar cells (PSCs) by incorporating perovskite with microporous indium-based metal–organic framework [In(12)O(OH)(16)(H(2)O)(5)(btc)(6)](n) (In-BTC) nanocrystals and forming heterojunction light-harvest...

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Detalles Bibliográficos
Autores principales: Zhou, Xuesong, Qiu, Lele, Fan, Ruiqing, Zhang, Jian, Hao, Sue, Yang, Yulin
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer Singapore 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7770709/
https://www.ncbi.nlm.nih.gov/pubmed/34138085
http://dx.doi.org/10.1007/s40820-020-00417-1
Descripción
Sumario:In this paper, we present a facile approach to enhance the efficiency and stability of perovskite solar cells (PSCs) by incorporating perovskite with microporous indium-based metal–organic framework [In(12)O(OH)(16)(H(2)O)(5)(btc)(6)](n) (In-BTC) nanocrystals and forming heterojunction light-harvesting layer. The interconnected micropores and terminal oxygen sites of In-BTC allow the preferential crystallization of perovskite inside the regular cavities, endowing the derived films with improved morphology/crystallinity and reduced grain boundaries/defects. Consequently, the In-BTC-modified PSC yields enhanced fill factor of 0.79 and power conversion efficiency (PCE) of 20.87%, surpassing the pristine device (0.76 and 19.52%, respectively). More importantly, over 80% of the original PCE is retained after 12 days of exposure to ambient environment (25 °C and relative humidity of ~ 65%) without encapsulation, while only about 35% is left to the pristine device. [Image: see text] ELECTRONIC SUPPLEMENTARY MATERIAL: The online version of this article (10.1007/s40820-020-00417-1) contains supplementary material, which is available to authorized users.