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Progress on the Synthesis and Application of CuSCN Inorganic Hole Transport Material in Perovskite Solar Cells

机译：钙钛矿型太阳能电池中CuSCN无机空穴传输材料的合成及应用进展

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P -type wide bandgap semiconductor materials such as CuI, NiO, Cu 2 O and CuSCN are currently undergoing intense research as viable alternative hole transport materials (HTMs) to the spiro-OMeTAD in perovskite solar cells (PSCs). Despite 23.3% efficiency of PSCs, there are still a number of issues in addition to the toxicology of Pb such as instability and high-cost of the current HTM that needs to be urgently addressed. To that end, copper thiocyanate (CuSCN) HTMs in addition to robustness have high stability, high hole mobility, and suitable energy levels as compared to spiro-OMeTAD HTM. CuSCN HTM layer use affordable materials, require short synthesis routes, require simple synthetic techniques such as spin-coating and doctor-blading, thus offer a viable way of developing cost-effective PSCs. HTMs play a vital role in PSCs as they can enhance the performance of a device by reducing charge recombination processes. In this review paper, we report on the current progress of CuSCN HTMs that have been reported to date in PSCs. CuSCN HTMs have shown enhanced stability when exposed to weather elements as the solar devices retained their initial efficiency by a greater percentage. The efficiency reported to date is greater than 20% and has a potential of increasing, as well as maintaining thermal stability.
机译：作为钙钛矿太阳能电池（PSC）中螺-OMeTAD的可行替代空穴传输材料（HTM），P型宽带隙半导体材料（如CuI，NiO，Cu 2 O和CuSCN）目前正在接受深入研究。尽管PSC的效率为23.3％，但除了Pb的毒理学之外，还有许多问题，例如当前HTM的不稳定性和高成本，亟待解决。为此，与spiro-OMeTAD HTM相比，硫氰酸铜（CuSCN）HTM除具有坚固性外，还具有高稳定性，高空穴迁移率和合适的能级。 CuSCN HTM层使用负担得起的材料，需要较短的合成路线，需要简单的合成技术（例如旋涂和刮刀涂布），因此提供了开发经济高效的PSC的可行方法。 HTM在PSC中起着至关重要的作用，因为它们可以通过减少电荷重组过程来增强设备的性能。在此评论文件中，我们报告了迄今为止在PSC中已报告的CuSCN HTM的当前进展。 CuSCN HTM在暴露于天气因素时表现出增强的稳定性，因为太阳能设备将其初始效率保持更高的百分比。迄今报道的效率大于20％，并且有增加潜力并保持热稳定性。

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