Recent advances of two-dimensional material additives in hybrid perovskite solar cells

材料科学 钙钛矿(结构) 纳米技术 太阳能电池 光电子学 工程物理 化学工程 工程类
作者
Yifan Yin,Yuchen Zhou,Miriam Rafailovich,Chang‐Yong Nam
出处
期刊:Nanotechnology [IOP Publishing]
卷期号:34 (17): 172001-172001 被引量:13
标识
DOI:10.1088/1361-6528/acb441
摘要

Abstract Perovskite solar cells (PSCs) have become one of the state-of-the-art photovoltaic technologies due to their facile solution-based fabrication processes combined with extremely high photovoltaic performance originating from excellent optoelectronic properties such as strong light absorption, high charge mobility, long free charge carrier diffusion length, and tunable direct bandgap. However, the poor intrinsic stability of hybrid perovskites under environmental stresses including light, heat, and moisture, which is often associated with high defect density in the perovskite, has limited the large-scale commercialization and deployment of PSCs. The use of process additives, which can be included in various subcomponent layers in the PSC, has been identified as one of the effective approaches that can address these issues and improve the photovoltaic performance. Among various additives that have been explored, two-dimensional (2D) materials have emerged recently due to their unique structures and properties that can enhance the photovoltaic performance and device stability by improving perovskite crystallization, defect passivation, and charge transport. Here, we provide a review of the recent progresses in 2D material additives for improving the PSC performance based on key representative 2D material systems, including graphene and its derivatives, transitional metal dichalcogenides, and black phosphorous, providing a useful guideline for further exploiting unique nanomaterial additives for more efficient and stable PSCs in the near future.
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