TY - JOUR
T1 - High-Performance Fused Ring Electron Acceptor-Perovskite Hybrid
AU - Zhang, Mingyu
AU - Dai, Shuixing
AU - Chandrabose, Sreelakshmi
AU - Chen, Kai
AU - Liu, Kuan
AU - Qin, Minchao
AU - Lu, Xinhui
AU - Hodgkiss, Justin M.
AU - Zhou, Huanping
AU - Zhan, Xiaowei
N1 - Funding Information:
X.Z. acknowledges the funding support from the National Natural Science Foundation of China (NSFC, No. 21673011). H.Z. thanks the funding support from the NSFC (Nos. 51722201, 51672008, 91733301) National Key Research and Development Program of China (No. 2017YFA0206701) and Beijing Natural Science Foundation (No. 4182026).
Publisher Copyright:
© 2018 American Chemical Society.
PY - 2018/11/7
Y1 - 2018/11/7
N2 - We report the fused ring electron acceptor (FREA)-perovskite hybrid as a promising platform to fabricate organic-inorganic hybrid solar cells with simple preparation, high efficiency, and good stability. The FREA-perovskite hybrid films exhibit larger grain sizes and stronger crystallinity than the pristine perovskite films. Moreover, the FREA molecules can form coordination bonding with undercoordinated Pb atoms and passivate the trap states in the perovskite films. Time-resolved photoluminescence and transient absorption measurements reveal that FREA facilitates efficient electron extraction and collection. Transient photocurrent and photovoltage measurements suggest faster charge transfer and reduced charge recombination in solar cells based on FREA-perovskite hybrid films. Consequently, solar cells based on FREA-perovskite hybrid films yield a champion efficiency of 21.7% with enhanced stability, which is higher than that of the control devices based on pristine perovskite films (19.6%).
AB - We report the fused ring electron acceptor (FREA)-perovskite hybrid as a promising platform to fabricate organic-inorganic hybrid solar cells with simple preparation, high efficiency, and good stability. The FREA-perovskite hybrid films exhibit larger grain sizes and stronger crystallinity than the pristine perovskite films. Moreover, the FREA molecules can form coordination bonding with undercoordinated Pb atoms and passivate the trap states in the perovskite films. Time-resolved photoluminescence and transient absorption measurements reveal that FREA facilitates efficient electron extraction and collection. Transient photocurrent and photovoltage measurements suggest faster charge transfer and reduced charge recombination in solar cells based on FREA-perovskite hybrid films. Consequently, solar cells based on FREA-perovskite hybrid films yield a champion efficiency of 21.7% with enhanced stability, which is higher than that of the control devices based on pristine perovskite films (19.6%).
UR - https://www.scopus.com/pages/publications/85056081448
U2 - 10.1021/jacs.8b09300
DO - 10.1021/jacs.8b09300
M3 - Journal article
C2 - 30354087
AN - SCOPUS:85056081448
SN - 0002-7863
VL - 140
SP - 14938
EP - 14944
JO - Journal of the American Chemical Society
JF - Journal of the American Chemical Society
IS - 44
ER -