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Nano Research 2024, 17(3): 1508-1515 https://doi.org/10.1007/s12274-023-5981-7
Research Article | Issue | Published: 27 July 2023

Antimony doped CsPbI2Br for high-stability all-inorganic perovskite solar cells

Show Author's Information Mengfei Zhu1,§,  Lina Qin1,§,  Yuren Xia1,§,  Junchuan Liang1,  Yaoda Wang1,  Daocheng Hong1,  Yuxi Tian1,  Zuoxiu Tie1,2,3( ),  Zhong Jin1,2,3( )
State Key Laboratory of Coordination Chemistry, Ministry of Education (MOE) Key Laboratory of Mesoscopic Chemistry, MOE Key Laboratory of High Performance Polymer Materials and Technology, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
Nanjing Tieming Energy Technology Co., Ltd., Nanjing 210093, China
Suzhou Tierui New Energy Technology Co., Ltd., Suzhou 215228, China

§ Mengfei Zhu, Lina Qin, and Yuren Xia contributed equally to this work.

Keywords:
all-inorganic perovskite solar cells, Sb doped cesium lead halide perovskites, foreign B-site ions, hole-conductor-free, phase stability improvement
Topics:
Perovskite solar cells
Cite this article:
Zhu M, Qin L, Xia Y, et al. Antimony doped CsPbI2Br for high-stability all-inorganic perovskite solar cells. Nano Research, 2024, 17(3): 1508-1515. https://doi.org/10.1007/s12274-023-5981-7
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Abstract Full text Electronic supplementary material About this article

All-inorganic perovskites, adopting cesium (Cs+) cation to completely replace the organic component of A-sites of hybrid organic–inorganic halide perovskites, have attracted much attention owing to the excellent thermal stability. However, all-inorganic iodine-based perovskites generally exhibit poor phase stability in ambient conditions. Herein, we propose an efficient strategy to introduce antimony (Sb3+) into the crystalline lattices of CsPbI2Br perovskite, which can effectively regulate the growth of perovskite crystals to obtain a more stable perovskite phase. Due to the much smaller ionic radius and lower electronegativity of trivalent Sb3+ than those of Pb2+, the Sb3+ doping can decrease surface defects and suppress charge recombination, resulting in longer carrier lifetime and negligible hysteresis. As a result, the all-inorganic perovskite solar cells (PSCs) based on 0.25% Sb3+ doped CsPbI2Br light absorber and screen-printable nanocarbon counter electrode achieved a power conversion efficiency of 11.06%, which is 16% higher than that of the control devices without Sb3+ doping. Moreover, the Sb3+ doped all-inorganic PSCs also exhibited greatly improved endurance against heat and moisture. Due to the use of low-cost and easy-to-process nanocarbon counter electrodes, the manufacturing process of the all-inorganic PSCs is very convenient and highly repeatable, and the manufacturing cost can be greatly reduced. This work offers a promising approach to constructing high-stability all-inorganic PSCs by introducing appropriate lattice doping.


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About this article

Antimony doped CsPbI2Br for high-stability all-inorganic perovskite solar cells

Show Author's information Mengfei Zhu1,§, Lina Qin1,§, Yuren Xia1,§, Junchuan Liang1, Yaoda Wang1, Daocheng Hong1, Yuxi Tian1, Zuoxiu Tie1,2,3( ), Zhong Jin1,2,3( )
State Key Laboratory of Coordination Chemistry, Ministry of Education (MOE) Key Laboratory of Mesoscopic Chemistry, MOE Key Laboratory of High Performance Polymer Materials and Technology, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
Nanjing Tieming Energy Technology Co., Ltd., Nanjing 210093, China
Suzhou Tierui New Energy Technology Co., Ltd., Suzhou 215228, China

§ Mengfei Zhu, Lina Qin, and Yuren Xia contributed equally to this work.

Abstract

All-inorganic perovskites, adopting cesium (Cs+) cation to completely replace the organic component of A-sites of hybrid organic–inorganic halide perovskites, have attracted much attention owing to the excellent thermal stability. However, all-inorganic iodine-based perovskites generally exhibit poor phase stability in ambient conditions. Herein, we propose an efficient strategy to introduce antimony (Sb3+) into the crystalline lattices of CsPbI2Br perovskite, which can effectively regulate the growth of perovskite crystals to obtain a more stable perovskite phase. Due to the much smaller ionic radius and lower electronegativity of trivalent Sb3+ than those of Pb2+, the Sb3+ doping can decrease surface defects and suppress charge recombination, resulting in longer carrier lifetime and negligible hysteresis. As a result, the all-inorganic perovskite solar cells (PSCs) based on 0.25% Sb3+ doped CsPbI2Br light absorber and screen-printable nanocarbon counter electrode achieved a power conversion efficiency of 11.06%, which is 16% higher than that of the control devices without Sb3+ doping. Moreover, the Sb3+ doped all-inorganic PSCs also exhibited greatly improved endurance against heat and moisture. Due to the use of low-cost and easy-to-process nanocarbon counter electrodes, the manufacturing process of the all-inorganic PSCs is very convenient and highly repeatable, and the manufacturing cost can be greatly reduced. This work offers a promising approach to constructing high-stability all-inorganic PSCs by introducing appropriate lattice doping.

Keywords: all-inorganic perovskite solar cells, Sb doped cesium lead halide perovskites, foreign B-site ions, hole-conductor-free, phase stability improvement

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Publication history
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Acknowledgements

Publication history

Received: 05 May 2023
Revised: 27 June 2023
Accepted: 04 July 2023
Published: 27 July 2023
Issue date: March 2024

Copyright

© Tsinghua University Press 2023

Acknowledgements

Acknowledgements

The authors are grateful to the support of the National Key R&D Program of China (No. 2017YFA0208200), the National Natural Science Foundation of China (Nos. 22022505 and 21872069), the Fundamental Research Funds for the Central Universities (Nos. 020514380266, 020514380272, and 020514380274), the Scientific and Technological Innovation Special Fund for Carbon Peak and Carbon Neutrality of Jiangsu Province (No. BK20220008), the Nanjing International Collaboration Research Program (Nos. 202201007 and 2022SX00000955), and the Suzhou Gusu Leading Talent Program of Science and Technology Innovation and Entrepreneurship in Wujiang District (No. ZXL2021273).

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