The charge carrier dynamics, efficiency and stability of two-dimensional material-based perovskite solar cells
The charge carrier dynamics, efficiency and stability of two-dimensional material-based perovskite solar cells
复制标题
二维材料钙钛矿太阳能电池的载流子动力学、效率和稳定性
DOI：
10.1039/c9cs00254e
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发表时间：
2019
影响因子：
46.2
通讯作者：
Lin Zhiqun
中科院分区：
文献类型：
--
作者：
Wang Bing;Iocozzia James;Zhang Meng;Ye Meidan;Yan Shicheng;Jin Huile;Wang Shun;Zou Zhigang;Lin Zhiqun
钙钛矿已被确立为第三代太阳能电池最有前途的材料之一。关于器件效率和稳定性，仍然存在一些巨大且挥之不去的挑战需要解决。钙钛矿太阳能电池（PSC）的光伏效率很大程度上取决于载流子动力学。这个复杂的过程包括电荷载流子的产生、提取、传输和收集，每个过程都需要以有利的方式进行调制才能实现高性能。二维材料（TDM），包括石墨烯及其衍生物、过渡金属二硫属化物（例如MoS2、WS2）、黑磷（BP）、金属纳米片和二维（2D）钙钛矿活性层，由于其高载流子迁移率和可调谐功函数特性而在钙钛矿太阳能电池中的应用引起了广泛关注，这极大地影响了电荷载流子动力学。 PSC。迄今为止，基于 TDM 的 PSC 领域已经取得了重大进展。在这篇综述中，详细介绍了 TDM（即石墨烯、石墨二炔、过渡金属二硫属化物、BP 等）作为 PSC 中的电极、空穴传输层、电子传输层和缓冲层的开发和应用的最新进展。还总结了二维钙钛矿作为 PSC 中的活性吸收材料。讨论了 TDM 和 2D 钙钛矿对 PSC 载流子动力学的影响，以全面了解其光电过程。强调了PSC器件面临的挑战，并针对这些问题提供了相应的解决方案，总体目标是提高光伏器件的效率和稳定性。
Perovskites have been firmly established as one of the most promising materials for third-generation solar cells. There remain several great and lingering challenges to be addressed regarding device efficiency and stability. The photovoltaic efficiency of perovskite solar cells (PSCs) depends drastically on the charge-carrier dynamics. This complex process includes charge-carrier generation, extraction, transport and collection, each of which needs to be modulated in a favorable manner to achieve high performance. Two-dimensional materials (TDMs) including graphene and its derivatives, transition metal dichalcogenides (e.g., MoS2, WS2), black phosphorus (BP), metal nanosheets and two-dimensional (2D) perovskite active layers have attracted much attention for application in perovskite solar cells due to their high carrier mobility and tunable work function properties which greatly impact the charge carrier dynamics of PSCs. To date, significant advances have been achieved in the field of TDM-based PSCs. In this review, the recent progress in the development and application of TDMs (i.e., graphene, graphdiyne, transition metal dichalcogenides, BP, and others) as electrodes, hole transporting layers, electron transporting layers and buffer layers in PSCs is detailed. 2D perovskites as active absorber materials in PSCs are also summarized. The effect of TDMs and 2D perovskites on the charge carrier dynamics of PSCs is discussed to provide a comprehensive understanding of their optoelectronic processes. The challenges facing the PSC devices are emphasized with corresponding solutions to these problems provided with the overall goal of improving the efficiency and stability of photovoltaic devices.