TY - JOUR
T1 - Advances in cesium lead iodide perovskite solar cells
T2 - Processing science matters
AU - Huang, Qingrong
AU - Liu, Yang
AU - Li, Faming
AU - Liu, Mingzhen
AU - Zhou, Yuanyuan
N1 - Funding Information:
Q.H., Y.L., F.L., and M.L. acknowledge the funding supports from the National Key R&D Program of China (No. 2017YFA0207400 ), the National Natural Science Foundation of China (Nos. 61604032 , 62004027 ), Sichuan Science and Technology Program (No. 2019JDTD0006 ), the Fundamental Research Funds for the Central Universities of China (No. ZYGX2016J206 ) and the China Postdoctoral Science Foundation (No. 2019M663466 ). Y.Z. acknowledges the startup grants from the Department of Physics, Faculty of Science, and Research Committee at Hong Kong Baptist University.
PY - 2021/7
Y1 - 2021/7
N2 - The prevailing perovskite solar cells (PSCs) employ hybrid organic–inorganic halide perovskites as light absorbers, but these materials exhibit relatively poor environmental stability, which potentially hinders the practical deployment of PSCs. One important strategy to address this issue is replacing the volatile and hygroscopic organic cations with inorganic cesium cations in the crystal structure, forming all-inorganic halide perovskites. In this context, CsPbI3 perovskite is drawing phenomenal attention, primarily because it exhibits an ideal bandgap of 1.7 eV for the use in tandem solar cells, and it shows significantly enhanced thermal stability that is the key to the long-term device operation. Within only half a decade, the power conversion efficiency (PCE) of CsPbI3 PSCs has ramped beyond 20%, which has been driven by inventions of numerous processing methods for high-quality CsPbI3 perovskite thin films. These methods are broadly classified into three categories: vapor deposition, nanocrystals assembly, and solution deposition. Herein we present a systematic review on these methods and related materials sciences. In particular, we comprehensively discuss the dimethylammonium-additive-based solution deposition, which has resulted into the best-performing CsPbI3 PSCs. We also present the challenges and prospects on future research towards the realization of the full potential of CsPbI3 PSCs.
AB - The prevailing perovskite solar cells (PSCs) employ hybrid organic–inorganic halide perovskites as light absorbers, but these materials exhibit relatively poor environmental stability, which potentially hinders the practical deployment of PSCs. One important strategy to address this issue is replacing the volatile and hygroscopic organic cations with inorganic cesium cations in the crystal structure, forming all-inorganic halide perovskites. In this context, CsPbI3 perovskite is drawing phenomenal attention, primarily because it exhibits an ideal bandgap of 1.7 eV for the use in tandem solar cells, and it shows significantly enhanced thermal stability that is the key to the long-term device operation. Within only half a decade, the power conversion efficiency (PCE) of CsPbI3 PSCs has ramped beyond 20%, which has been driven by inventions of numerous processing methods for high-quality CsPbI3 perovskite thin films. These methods are broadly classified into three categories: vapor deposition, nanocrystals assembly, and solution deposition. Herein we present a systematic review on these methods and related materials sciences. In particular, we comprehensively discuss the dimethylammonium-additive-based solution deposition, which has resulted into the best-performing CsPbI3 PSCs. We also present the challenges and prospects on future research towards the realization of the full potential of CsPbI3 PSCs.
UR - http://www.scopus.com/inward/record.url?scp=85102467618&partnerID=8YFLogxK
U2 - 10.1016/j.mattod.2021.01.014
DO - 10.1016/j.mattod.2021.01.014
M3 - Journal article
AN - SCOPUS:85102467618
SN - 1369-7021
VL - 47
SP - 156
EP - 169
JO - Materials Today
JF - Materials Today
ER -
