A Review on Additives for Halide Perovskite Solar Cells
Shuang Liu(Wuhan National Laboratory for Optoelectronics), Yanjun Guan(Wuhan National Laboratory for Optoelectronics), Yusong Sheng(Wuhan National Laboratory for Optoelectronics), Yue Hu(Wuhan National Laboratory for Optoelectronics), Yaoguang Rong(Wuhan National Laboratory for Optoelectronics), Anyi Mei(Wuhan National Laboratory for Optoelectronics), Hongwei Han(Wuhan National Laboratory for Optoelectronics)
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Abstract
Abstract Additives are widely adopted for efficient, stable, and hysteresis‐free perovskite solar cells and play an important role in various breakthroughs of perovskite solar cells (PSCs). Herein the various additives adopted for PSCs are reviewed and their functioning mechanism and influence on device performance is described. The main roles of additives, modulating morphology of perovskite films, stabilizing phase of formamidinium (FA) and cesium (Cs)‐based perovskites, adjusting energy level alignment in PSCs, suppressing nonradiative recombination in perovskites, eliminating hysteresis, enhancing operational stability of PSCs, are summarized.
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