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Carbon Nanoparticles as Versatile Auxiliary Components of Perovskite-Based Optoelectronic Devices

机译：碳纳米粒子作为钙钛矿的光电器件的多功能辅助组分

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摘要

Metal halide perovskite-based optoelectronics has experienced an unprecedented development in the last decade, while further improvements of efficiency, stability, and economic gains of such devices require novel engineering concepts. The use of carbon nanoparticles as versatile auxiliary components of perovskite-based optoelectronic devices is one strategy that offers several advantages in this respect. In this review, first, a brief introduction is offered on metal halide perovskites and on the major performance characteristics of related optoelectronic devices. Then, the versatility and merits of different kinds of carbon nanoparticles, such as graphene quantum dots and carbon dots, are discussed. The tunability of their electronic properties is focused upon, their interactions with perovskite components are analyzed, and different strategies of their implementation in optoelectronic devices are introduced, which include solar cells, light-emitting diodes, luminescent solar concentrators, and photodetectors. It is shown how carbon nanoparticles influence charge carriers extraction and transport, promote perovskite crystallization, allow for efficient passivation, block ion migration, suppress hysteresis, enhance their environmental stability, and thus improve the performance of perovskite-based optoelectronic devices.
机译：金属卤化物佩罗夫斯基钛矿的光电子在过去十年中经历了前所未有的发展，而进一步改善这些装置的效率，稳定性和经济损益需要新颖的工程概念。使用碳纳米粒子作为Perovskite的光电器件的多功能辅助组分是一种在这方面提供了几种策略。在本综述中，首先，在金属卤化物佩洛夫斯基斯和相关光电器件的主要性能特征上提供了简要的介绍。然后，讨论了不同种类的碳纳米粒子（例如石墨烯量子点和碳点）的多功能性和优点。它们的电子特性的可调性聚焦，分析了它们与钙钛矿组分的相互作用，并引入了它们在光电器件中实现的不同策略，包括太阳能电池，发光二极管，发光太阳能集中器和光电探测器。示出了碳纳米粒子如何影响电荷载体的提取和运输，促进钙钛矿结晶，允许有效的钝化，阻断离子迁移，抑制滞后，增强它们的环境稳定性，从而提高基于钙钛矿的光电器件的性能。

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