无机电荷传输层在有机-无机杂化钙钛矿太阳能电池中的应用及研究进展

近年来,基于有机-无机杂化钙钛矿材料为光活性层构建的太阳能电池由于具有直接带隙、吸光系数高、激子束缚能低、激子和载流子扩散距离长,以及成本低、制备工艺简单、光电转换率高、易于实现大面积柔性器件等优点,而成为当今新型光伏技术中一颗耀眼的新星。在钙钛矿太阳能电池中,电荷传输层在提高光电转换效率、稳定性及寿命等方面扮演着非常重要的角色,其中无机电荷传输层因具有载流子迁移率高、稳定性好、制备工艺简单等优势越来越受到人们的关注。本文总结了无机电荷传输层在钙钛矿太阳能电池中的应用,详细介绍了各种无机电子/空穴传输层在钙钛矿太阳能电池中的研究进展,并对其发展趋势进行了展望。

Application of Inorganic Charge Transportation Layers in Organic-Inorganic Hybrid Perovskite Solar Cells:a Review

In recent years, solar cells (PSCs) based on organic-inorganic hybrid perovskite photoactive materials have exhibited peculiar enchantment in the emerging photovoltaic technologies, owing to their direct band gap, favorable light absorption coefficient, low excition binding energy, long diffusion length of the excitons and the carriers, as well as low cost, simple preparation process, satisfactory photoelectric conversion efficiency, possibility for realizing large-scale flexible devices, and so forth. In PSCs, the charge transportation layer plays a crucial role in enhancing the photoelectric conversion efficiency, stability and longevity. Thanks to the high carrier mobility, good stability and simple preparation process, inorganic charge transportation layers have aroused enormous interests from researchers. Numerous researches on applying inorganic charge transportation layers in the PSCs have been conducted. Herein, the recent progresses in the application of diverse inorganic charge transportation layers in PSCs are summarized and the development trend is proposed.