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钙钛矿太阳能电池在过去十多年中，能量转换效率已经从3.8%提升到25.5%。目前的高效钙钛矿太阳能电池主要是n-i-p结构,其广泛使用的空穴传输材料(Spiro-OMeTAD)通常需要易吸潮的添加剂掺杂来提高空穴迁移率和电导率。易吸潮的掺杂剂的使用不仅增加了器件的制备成本，而且损害了器件的长期稳定性。因此，开发高效非掺杂的空穴传输材料来取代SpiroOMeTAD已经成为钙钛矿太阳能电池商业化应用面临的主要挑战之一。非掺杂有机空穴传输材料具有高耐热性、高疏水性和优异的薄膜加工能力，适合大规模生产，并在不同类型的器件中显示出良好的器件效率和稳定性。本文主要对近五年来基于n-i-p型结构钙钛矿太阳能电池中的非掺杂有机空穴传输材料的进展进行了综述，讨论了非掺杂有机空穴传输材料的使用对器件的稳定性的提升效果，并展望了其发展趋势和应用前景。
Abstract：In the past decade, the power conversion efficiency of perovskite solar cells(PSCs) has increased from 3.8% to 25.5%. The hole transport material(HTM) in state-of-the-art perovskite solar cells(PSCs) is dominated by Spiro-OMeTAD, which need to be doped by the deliquescent dopants to improve its hole mobility and conductivity. The incorporated dopants not only increase the overall cost of the device, but also cause the inferior stability of the devices. Therefore, the development of high-efficient and dopant-free hole-transporting materials to replace SpiroOMeTAD has become one of the main challenges for commercialization this technology. Dopantfree organic hole-transporting materials have high thermal stability, superior hydrophobicity and excellent film processing capabilities, which make them suitable for mass production and device application. In this perspective, we mainly review the recent development of dopant-free organic hole transport materials based on n-i-p structured perovskite solar cells in the past five years, and discuss the effects of dopant-free organic hole-transporting materials on the device stability. The development trend of dopant-free HTM in PSCs are also prospected.
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基本信息:
DOI：10.16026/j.cnki.iea.2021050455
中图分类号:TB34;TM914.4
引用信息:
[1]刘航,付强,刘永胜.基于n-i-p型钙钛矿太阳能电池的非掺杂空穴传输材研究进展[J].离子交换与吸附,2021,37(05):455-479.DOI:10.16026/j.cnki.iea.2021050455.
基金信息:
国家自然科学基金(21875122)
2021-12-01
2021-12-01
2021-12-01