TY - JOUR
T1 - Lewis bases
T2 - promising additives for enhanced performance of perovskite solar cells
AU - Wafee, Seema
AU - Liu, Bernard Haochih
AU - Leu, Ching Chich
N1 - Funding Information:
The authors are obliged for the support provided by the Ministry of Science and Technology (MOST) ; the Republic of China under contract No. MOST 109-2221-E-006-126-MY3 and MOST 109-2221-E-390-009 .
Publisher Copyright:
© 2021 Elsevier Ltd
PY - 2021/12
Y1 - 2021/12
N2 - Lead halide perovskite is considered to be a very attractive photovoltaic material in the last few decades because of its rapid increase in efficiency. However, its instability under different environmental conditions and issues with its toxicity remain challenges. The approach of using multifunctional additives to increase the grain size, passivate both positively and negatively charged defects to enhance the long-term stability of perovskite has remained popular among the photovoltaic community. In this regard, a huge number of articles have been published in recent years focusing on additive engineering of perovskite. Here, we present a review on Lewis base additives in the precursor solution, anti-solvent, and interface treatment in perovskite to improve its photovoltaic properties. The grain boundaries are susceptible to decomposition because they have been found to carry the defects. To analyze the role of Lewis bases in increasing the grain size to minimize the grain boundary density in polycrystalline films for overall stability enhancement of perovskite, we detail the chelate effect and synergistic effect of additives in perovskite for solar cells. Finally, a future outlook is presented to discuss the critical challenges.
AB - Lead halide perovskite is considered to be a very attractive photovoltaic material in the last few decades because of its rapid increase in efficiency. However, its instability under different environmental conditions and issues with its toxicity remain challenges. The approach of using multifunctional additives to increase the grain size, passivate both positively and negatively charged defects to enhance the long-term stability of perovskite has remained popular among the photovoltaic community. In this regard, a huge number of articles have been published in recent years focusing on additive engineering of perovskite. Here, we present a review on Lewis base additives in the precursor solution, anti-solvent, and interface treatment in perovskite to improve its photovoltaic properties. The grain boundaries are susceptible to decomposition because they have been found to carry the defects. To analyze the role of Lewis bases in increasing the grain size to minimize the grain boundary density in polycrystalline films for overall stability enhancement of perovskite, we detail the chelate effect and synergistic effect of additives in perovskite for solar cells. Finally, a future outlook is presented to discuss the critical challenges.
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U2 - 10.1016/j.mtener.2021.100847
DO - 10.1016/j.mtener.2021.100847
M3 - Review article
AN - SCOPUS:85121653921
SN - 2468-6069
VL - 22
JO - Materials Today Energy
JF - Materials Today Energy
M1 - 100847
ER -
