Simultaneous lattice engineering and defect control via cadmium incorporation for high-performance inorganic perovskite solar cells

Xu, Tianfei; Xiang, Wanchun; Kubicki, Dominik J.; Liu, Yali; Tress, Wolfgang; Liu, Shengzhong

doi:10.1002/advs.202204486

Please use this identifier to cite or link to this item: https://doi.org/10.21256/zhaw-26608

Publication type:	Article in scientific journal
Type of review:	Peer review (publication)
Title:	Simultaneous lattice engineering and defect control via cadmium incorporation for high-performance inorganic perovskite solar cells
Authors:	Xu, Tianfei Xiang, Wanchun Kubicki, Dominik J. Liu, Yali Tress, Wolfgang Liu, Shengzhong
et. al:	No
DOI:	10.1002/advs.202204486 10.21256/zhaw-26608
Published in:	Advanced Science
Volume(Issue):	9
Issue:	36
Page(s):	2204486
Issue Date:	Dec-2022
Publisher / Ed. Institution:	Wiley
ISSN:	2198-3844
Language:	English
Subjects:	Doping; Inorganic perovskite; Perovskite solar cell; Power conversion efficiency; Stability
Subject (DDC):	621.3: Electrical, communications, control engineering
Abstract:	Doping of all-inorganic lead halide perovskites to enhance their photovoltaic performance and stability has been reported to be effective. Up to now most studies have focused on the doping of elements in to the perovskite lattice. However, most of them cannot be doped into the perovskite lattice and the roles of these dopants are still controversial. Herein,the authors introduce CdI2 as an additive into CsPbI3-x Brx and use it as active layer to fabricate high-performance inorganic perovskite solar cells (PSCs). Cd with a smaller radius than Pb can partially substitute Pb in the perovskite lattice by up to 2 mol%. Meanwhile, the remaining Cd stays on the surface and grain boundaries (GB) of the perovskite film in the form of Cs2 CdI4-x Br-x , which is found to reduce non-radiative recombination. These effects result in prolonged charge carrier lifetime, suppressed defect formation, decreased GBs, and an upward shift of energybands in the Cd-containing film. A champion efficiency of 20.8% is achieved for Cd-incorporated PSCs, together with improved device ambient stability. This work highlights the importance of simultaneous lattice engineering, defectcontrol and atomic-level characterization in achieving high-performance inorganic PSCs with well-defined structure-property relationships.
URI:	https://digitalcollection.zhaw.ch/handle/11475/26608
Fulltext version:	Published version
License (according to publishing contract):	CC BY 4.0: Attribution 4.0 International
Departement:	School of Engineering
Organisational Unit:	Institute of Computational Physics (ICP)
Appears in collections:	Publikationen School of Engineering

Files in This Item:

File	Description	Size	Format
2022_Xu-etal_Simultaneous-lattice-engineering-defect-control-via-Cadmium-incorporation.pdf		3.04 MB	Adobe PDF	View/Open

Show full item record

Xu, T., Xiang, W., Kubicki, D. J., Liu, Y., Tress, W., & Liu, S. (2022). Simultaneous lattice engineering and defect control via cadmium incorporation for high-performance inorganic perovskite solar cells. Advanced Science, 9(36), 2204486. https://doi.org/10.1002/advs.202204486

Xu, T. et al. (2022) ‘Simultaneous lattice engineering and defect control via cadmium incorporation for high-performance inorganic perovskite solar cells’, Advanced Science, 9(36), p. 2204486. Available at: https://doi.org/10.1002/advs.202204486.

T. Xu, W. Xiang, D. J. Kubicki, Y. Liu, W. Tress, and S. Liu, “Simultaneous lattice engineering and defect control via cadmium incorporation for high-performance inorganic perovskite solar cells,” Advanced Science, vol. 9, no. 36, p. 2204486, Dec. 2022, doi: 10.1002/advs.202204486.

XU, Tianfei, Wanchun XIANG, Dominik J. KUBICKI, Yali LIU, Wolfgang TRESS und Shengzhong LIU, 2022. Simultaneous lattice engineering and defect control via cadmium incorporation for high-performance inorganic perovskite solar cells. Advanced Science. Dezember 2022. Bd. 9, Nr. 36, S. 2204486. DOI 10.1002/advs.202204486

Xu, Tianfei, Wanchun Xiang, Dominik J. Kubicki, Yali Liu, Wolfgang Tress, and Shengzhong Liu. 2022. “Simultaneous Lattice Engineering and Defect Control via Cadmium Incorporation for High-Performance Inorganic Perovskite Solar Cells.” Advanced Science 9 (36): 2204486. https://doi.org/10.1002/advs.202204486.

Xu, Tianfei, et al. “Simultaneous Lattice Engineering and Defect Control via Cadmium Incorporation for High-Performance Inorganic Perovskite Solar Cells.” Advanced Science, vol. 9, no. 36, Dec. 2022, p. 2204486, https://doi.org/10.1002/advs.202204486.