石墨烯
钙钛矿(结构)
材料科学
量子点
氧化物
纳米技术
介孔材料
光电子学
带隙
化学工程
化学
生物化学
工程类
冶金
催化作用
作者
Ximing Dai,Pramod Koshy,Charles C. Sorrell,Jongchul Lim,Jae Sung Yun
出处
期刊:Energies
[MDPI AG]
日期:2020-12-01
卷期号:13 (23): 6335-6335
被引量:10
摘要
The present work applies a focal point of materials-related issues to review the major case studies of electron transport layers (ETLs) of metal halide perovskite solar cells (PSCs) that contain graphene-based materials (GBMs), including graphene (GR), graphene oxide (GO), reduced graphene oxide (RGO), and graphene quantum dots (GQDs). The coverage includes the principal components of ETLs, which are compact and mesoporous TiO2, SnO2, ZnO and the fullerene derivative PCBM. Basic considerations of solar cell design are provided and the effects of the different ETL materials on the power conversion efficiency (PCE) have been surveyed. The strategy of adding GBMs is based on a range of phenomenological outcomes, including enhanced electron transport, enhanced current density-voltage (J-V) characteristics and parameters, potential for band gap (Eg) tuning, and enhanced device stability (chemical and environmental). These characteristics are made complicated by the variable effects of GBM size, amount, morphology, and distribution on the nanostructure, the resultant performance, and the associated effects on the potential for charge recombination. A further complication is the uncertain nature of the interfaces between the ETL and perovskite as well as between phases within the ETL.
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