School of Instrument Science and Opto Electronics Engineering, Beijing Information Science and Technology University, Beijing 100101, China.
Beijing Key Laboratory for Sensor, School of Instrument Science and Opto-Electronics Engineering, Beijing Information Science and Technology University, Beijing 100101, China.
Molecules. 2023 Apr 28;28(9):3787. doi: 10.3390/molecules28093787.
The power conversion efficiency of modern perovskite solar cells has surpassed that of commercial photovoltaic technology, showing great potential for commercial applications. However, the current high-performance perovskite solar cells all contain toxic lead elements, blocking their progress toward industrialization. Lead-free tin-based perovskite solar cells have attracted tremendous research interest, and more than 14% power conversion efficiency has been achieved. In tin-based perovskite, Sn is easily oxidized to Sn in air. During this process, two additional electrons are introduced to form a heavy p-type doping perovskite layer, necessitating the production of hole transport materials different from that of lead-based perovskite devices or organic solar cells. In this review, for the first time, we summarize the hole transport materials used in the development of tin-based perovskite solar cells, describe the impact of different hole transport materials on the performance of tin-based perovskite solar cell devices, and summarize the recent progress of hole transport materials. Lastly, the development direction of lead-free tin-based perovskite devices in terms of hole transport materials is discussed based on their current development status. This comprehensive review contributes to the development of efficient, stable, and environmentally friendly tin-based perovskite devices and provides guidance for the hole transport layer material design.
现代钙钛矿太阳能电池的能量转换效率已经超过了商业光伏技术，显示出巨大的商业应用潜力。然而，目前高性能的钙钛矿太阳能电池都含有有毒的铅元素，这阻碍了它们向工业化发展。无铅锡基钙钛矿太阳能电池引起了极大的研究兴趣，其能量转换效率已经超过 14%。在锡基钙钛矿中，Sn 很容易在空气中被氧化为 Sn。在这个过程中，引入了两个额外的电子，形成了重 p 型掺杂钙钛矿层，这就需要使用不同于铅基钙钛矿器件或有机太阳能电池的空穴传输材料。在这篇综述中，我们首次总结了用于开发锡基钙钛矿太阳能电池的空穴传输材料，描述了不同空穴传输材料对锡基钙钛矿太阳能电池器件性能的影响，并总结了空穴传输材料的最新进展。最后，根据其目前的发展状况，讨论了无铅锡基钙钛矿器件中空穴传输材料的发展方向。这篇全面的综述有助于高效、稳定、环保的锡基钙钛矿器件的发展，并为空穴传输层材料的设计提供了指导。
