High‐Efficiency Perovskite Solar Cells with Imidazolium‐Based Ionic Liquid for Surface Passivation and Charge Transport
Xuejie Zhu
1
,
Minyong Du
2
,
Jiangshan Feng
1
,
Hui Wang
2
,
Zhuo Xu
1
,
LIKUN WANG
2
,
SHENGNAN ZUO
1
,
Chenyu Wang
1
,
Ziyu Wang
2
,
Cong Zhang
1
,
Xiaodong Ren
1
,
S. Priya
3
,
Dong Yang
3
,
Sheng-Zhong Liu
1, 2
Publication type: Journal Article
Publication date: 2020-12-23
scimago Q1
wos Q1
SJR: 5.550
CiteScore: 27.6
Impact factor: 16.9
ISSN: 14337851, 15213773
PubMed ID:
33156572
General Chemistry
Catalysis
Abstract
Surface defects have been a key constraint for perovskite photovoltaics. Herein, 1,3‐dimethyl‐3‐imidazolium hexafluorophosphate (DMIMPF6) ionic liquid (IL) is adopted to passivate the surface of a formamidinium‐cesium lead iodide perovskite (Cs0.08FA0.92PbI3) and also reduce the energy barrier between the perovskite and hole transport layer. Theoretical simulations and experimental results demonstrate that Pb‐cluster and Pb‐I antisite defects can be effectively passivated by [DMIM]+ bonding with the Pb2+ ion on the perovskite surface, leading to significantly suppressed non‐radiative recombination. As a result, the solar cell efficiency was increased to 23.25 % from 21.09 %. Meanwhile, the DMIMPF6‐treated perovskite device demonstrated long‐term stability because the hydrophobic DMIMPF6 layer blocked moisture permeation.
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Total citations:
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Citations from 2025:
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GOST
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Zhu X. et al. High‐Efficiency Perovskite Solar Cells with Imidazolium‐Based Ionic Liquid for Surface Passivation and Charge Transport // Angewandte Chemie - International Edition. 2020. Vol. 60. No. 8. pp. 4238-4244.
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Zhu X., Du M., Feng J., Wang H., Xu Z., WANG L., ZUO S., Wang C., Wang Z., Zhang C., Ren X., Priya S., Yang D., Liu S. High‐Efficiency Perovskite Solar Cells with Imidazolium‐Based Ionic Liquid for Surface Passivation and Charge Transport // Angewandte Chemie - International Edition. 2020. Vol. 60. No. 8. pp. 4238-4244.
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RIS
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TY - JOUR
DO - 10.1002/anie.202010987
UR - https://onlinelibrary.wiley.com/doi/10.1002/anie.202010987
TI - High‐Efficiency Perovskite Solar Cells with Imidazolium‐Based Ionic Liquid for Surface Passivation and Charge Transport
T2 - Angewandte Chemie - International Edition
AU - Zhu, Xuejie
AU - Du, Minyong
AU - Feng, Jiangshan
AU - Wang, Hui
AU - Xu, Zhuo
AU - WANG, LIKUN
AU - ZUO, SHENGNAN
AU - Wang, Chenyu
AU - Wang, Ziyu
AU - Zhang, Cong
AU - Ren, Xiaodong
AU - Priya, S.
AU - Yang, Dong
AU - Liu, Sheng-Zhong
PY - 2020
DA - 2020/12/23
PB - Wiley
SP - 4238-4244
IS - 8
VL - 60
PMID - 33156572
SN - 1433-7851
SN - 1521-3773
ER -
Cite this
BibTex (up to 50 authors)
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@article{2020_Zhu,
author = {Xuejie Zhu and Minyong Du and Jiangshan Feng and Hui Wang and Zhuo Xu and LIKUN WANG and SHENGNAN ZUO and Chenyu Wang and Ziyu Wang and Cong Zhang and Xiaodong Ren and S. Priya and Dong Yang and Sheng-Zhong Liu},
title = {High‐Efficiency Perovskite Solar Cells with Imidazolium‐Based Ionic Liquid for Surface Passivation and Charge Transport},
journal = {Angewandte Chemie - International Edition},
year = {2020},
volume = {60},
publisher = {Wiley},
month = {dec},
url = {https://onlinelibrary.wiley.com/doi/10.1002/anie.202010987},
number = {8},
pages = {4238--4244},
doi = {10.1002/anie.202010987}
}
Cite this
MLA
Copy
Zhu, Xuejie, et al. “High‐Efficiency Perovskite Solar Cells with Imidazolium‐Based Ionic Liquid for Surface Passivation and Charge Transport.” Angewandte Chemie - International Edition, vol. 60, no. 8, Dec. 2020, pp. 4238-4244. https://onlinelibrary.wiley.com/doi/10.1002/anie.202010987.