Through the analysis of scales on the drift–diffusion device model of a planar-structured perovskite solar cell, we have obtained accurate-analytical expressions that capture the recombination losses within the cell. The recombination losses are resolved into the radiative and Shockley–Read–Hall mechanisms, as well as interfacial recombination between the perovskite and electron/hole-transporting layers. After parameter calibration with the state of the art planar perovskite solar cell of 23.5% efficiency, the percentage contribution of various recombination loss channels within a planar-structured perovskite solar cell is analytically determined through derived scales and numerically verified at the condition of an open-circuit voltage and a short-circuit current, as well as gives a good prediction of a dominant recombination mechanism within the cell. On this basis, a comparison of loss analysis between the estimated scales and numeric results is carried out at the condition of an open-circuit voltage when a wide range of parameters influencing the recombination current is deviated simultaneously, and a good agreement is obtained.
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28 September 2020
Research Article|
September 23 2020
Elucidating the functional form of the recombination losses in a planar perovskite solar cell: A scaling analysis
Special Collection:
Hybrid Organic-Inorganic Halide Perovskites
Hansong Xue
;
Hansong Xue
1
Department of Chemical and Biomolecular Engineering, National University of Singapore
, 4 Engineering Drive 4, Singapore
1175852
Solar Energy Research Institute of Singapore (SERIS), National University of Singapore
, 7 Engineering Drive 1, Singapore
117574
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Rolf Stangl;
Rolf Stangl
2
Solar Energy Research Institute of Singapore (SERIS), National University of Singapore
, 7 Engineering Drive 1, Singapore
117574
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Erik Birgersson
Erik Birgersson
a)
2
Solar Energy Research Institute of Singapore (SERIS), National University of Singapore
, 7 Engineering Drive 1, Singapore
1175743
Department of Mechanical Engineering, National University of Singapore
, 5 Engineering Drive 1, Singapore
117608a)Author to whom correspondence should be addressed: mpebke@nus.edu.sg
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a)Author to whom correspondence should be addressed: mpebke@nus.edu.sg
Note: This paper is part of the special collection on Hybrid Organic-Inorganic Halide Perovskites
J. Appl. Phys. 128, 123102 (2020)
Article history
Received:
May 16 2020
Accepted:
September 01 2020
Citation
Hansong Xue, Rolf Stangl, Erik Birgersson; Elucidating the functional form of the recombination losses in a planar perovskite solar cell: A scaling analysis. J. Appl. Phys. 28 September 2020; 128 (12): 123102. https://doi.org/10.1063/5.0013741
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