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Open AccessArticle

Enhancing Perovskite Solar Cell Performance through Surface Engineering of Metal Oxide Electron-Transporting Layer

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Qinghai Huanghe Upstream Hydropower Development Co. Ltd. Photovoltaic Industry Technology Branch, Photovoltaic Technology Co., Ltd. of Huanghe Hydropower, Xining 810000, Qinghai, China
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Faculty of Automation and Information Engineering, Xi’an University of Technology, Xi’an 710048, China
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State Key Discipline Laboratory of Wide Band Gap Semiconductor Tecchnology, Shaanxi Joint Key Laboratory of Graphene, School of Microelectronics, Xidian University, Xi’an 710071, China
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Author to whom correspondence should be addressed.
Coatings 2020, 10(1), 46; https://doi.org/10.3390/coatings10010046
Received: 23 November 2019 / Revised: 20 December 2019 / Accepted: 20 December 2019 / Published: 3 January 2020
(This article belongs to the Special Issue Metal Oxide Thin Films for Photovoltaic Applications)
Perovskite solar cells have gained increasing interest in recent times owing to the rapidly enlarged device efficiency and tunable optoelectronic properties in various applications. In perovskite solar cells, interface engineering plays an important role in determining the final device efficiency and stability. In this study, we adopted TiCl4 treatment to reduce the surface roughness of the metal oxide layer and improve the perovskite film quality to obtain better device performance. After proper TiCl4 treatment, the efficiencies of TiCl4–TiO2- and TiCl4–ZnO-based devices were significantly enhanced up to 16.5% and 17.0%, respectively, compared with those based on pristine TiO2 and ZnO (13.2% and 10.2%, respectively). View Full-Text
Keywords: perovskite solar cells; TiCl4 treatment; electron-transporting layer; interface engineering perovskite solar cells; TiCl4 treatment; electron-transporting layer; interface engineering
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MDPI and ACS Style

Lu, G.; Wang, X.; Du, J.; Zhang, M.; Gao, Y.; Liu, Y.; Ma, J.; Lin, Z. Enhancing Perovskite Solar Cell Performance through Surface Engineering of Metal Oxide Electron-Transporting Layer. Coatings 2020, 10, 46.

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