材料科学
石墨烯
光致发光
光伏系统
氧化物
能量转换效率
光电子学
图层(电子)
电子传输链
纳米技术
化学
电气工程
生物化学
工程类
冶金
作者
Mohd Shahnawaz Khan,Firoz Khan
标识
DOI:10.1016/j.matlet.2022.132578
摘要
Herein, the electron transport layer (ETL) ZnO in perovskites (PVSK) solar cells (PSCs) has been modified using reduced graphene oxide (rGO) and investigated its impact on the photovoltaic (PV) performance of PSCs. The device with rGO exhibits enhanced performance with a power conversion efficiency (PCE) of 17.08% as compared to the device without rGO layer (15.93%). The improved device performance of rGO-based device is attributed to the faster charge transfer at the PVSK/ETL interface confirmed via steady-state photoluminescence (PL) and time-resolved photoluminescence (TRPL) spectra. The evaluated PV cell parameters indicate that the rGO layer suppresses the recombination losses and accelerates the charge transport in PSCs.
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