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231226s2023 xx |||||o 00| ||eng c |
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|a 10.1002/adma.202300872
|2 doi
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|a pubmed24n1188.xml
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|a eng
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|a Krückemeier, Lisa
|e verfasserin
|4 aut
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|a Quantifying Charge Extraction and Recombination Using the Rise and Decay of the Transient Photovoltage of Perovskite Solar Cells
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|c 2023
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|a Date Revised 01.09.2023
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2023 The Authors. Advanced Materials published by Wiley-VCH GmbH.
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|a The extraction of photogenerated charge carriers and the generation of a photovoltage belong to the fundamental functionalities of any solar cell. These processes happen not instantaneously but rather come with finite time constants, e.g., a time constant related to the rise of the externally measured open circuit voltage following a short light pulse. Herein, a new method to analyze transient photovoltage measurements at different bias light intensities combining rise and decay times of the photovoltage. The approach uses a linearized version of a system of two coupled differential equations that are solved analytically by determining the eigenvalues of a 2 × 2 matrix. By comparison between the eigenvalues and the measured rise and decay times during a transient photovoltage measurement, the rates of carrier recombination and extraction as a function of bias voltage are determined, and establish a simple link between their ratio and the efficiency losses in the perovskite solar cell
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|a Journal Article
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|a capacitive discharge
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|a charge-carrier lifetime
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|a decay time
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|a photovoltaics
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|a time-resolved photoluminescence
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|a Liu, Zhifa
|e verfasserin
|4 aut
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|a Kirchartz, Thomas
|e verfasserin
|4 aut
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| 700 |
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|a Rau, Uwe
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Advanced materials (Deerfield Beach, Fla.)
|d 1998
|g 35(2023), 35 vom: 06. Sept., Seite e2300872
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|x 1521-4095
|7 nnns
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|g volume:35
|g year:2023
|g number:35
|g day:06
|g month:09
|g pages:e2300872
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|u http://dx.doi.org/10.1002/adma.202300872
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