کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
11031093 | 1646083 | 2019 | 27 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A modeled perovskite solar cell structure with a Cu2O hole-transporting layer enabling over 20% efficiency by low-cost low-temperature processing
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
We introduce Cu2O as a hole-transporting material in perovskite solar cells. Device modeling with a configuration of glass/fluorine-doped tin oxide/ZnO/perovskite/Cu2O/carbon was performed by SCAPS, a solar cell capacitance simulator. The simulation results indicate that the device performance is greatly dependent on the defect densities and thickness of the perovskite absorber. An absorber thickness of 500â¯nm was optimum for efficient light absorption. The defect states at the perovskite/ZnO interface had a stronger influence on solar cell performance than those at the Cu2O/perovskite interface; therefore, to further improve photovoltaic performance, we should pay particular attention to the perovskite/ZnO interface. Proper interface modification and passivation to lower defect densities of the interface below 1016â¯cmâ3 was essential. The impact of acceptor density and hole mobility of the hole-transport layer on device performance further confirmed that Cu2O is a suitable hole-transport layer for perovskite solar cells. Finally, to achieve better photovoltaic performance, a back-contact material with a high work function is very necessary.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Physics and Chemistry of Solids - Volume 124, January 2019, Pages 205-211
Journal: Journal of Physics and Chemistry of Solids - Volume 124, January 2019, Pages 205-211
نویسندگان
Lingyan Lin, Linqin Jiang, Ping Li, Baodian Fan, Yu Qiu,