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Beyond Impedance Spectroscopy of Perovskite Solar Cells: Insights from the Spectral Correlation of the Electrooptical Frequency Techniques

Agustín Bou, Adam Pockett, Dimitrios Raptis, Trystan Watson Orcid Logo, Matt Carnie Orcid Logo, Juan Bisquert

The Journal of Physical Chemistry Letters, Volume: 11, Issue: 20, Pages: 8654 - 8659

Swansea University Authors: Adam Pockett, Dimitrios Raptis, Trystan Watson Orcid Logo, Matt Carnie Orcid Logo

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DOI (Published version): 10.1021/acs.jpclett.0c02459

Abstract

Small perturbation techniques have proven to be useful tools for the investigation of perovskite solar cells. A correct interpretation of the spectra given by impedance spectroscopy (IS), intensity-modulated photocurrent spectroscopy (IMPS), and intensity-modulated photovoltage spectroscopy (IMVS) i...

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Published in: The Journal of Physical Chemistry Letters
ISSN: 1948-7185 1948-7185
Published: American Chemical Society (ACS) 2020
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URI: https://cronfa.swan.ac.uk/Record/cronfa55378
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spelling 2021-08-05T16:33:15.9873328 v2 55378 2020-10-08 Beyond Impedance Spectroscopy of Perovskite Solar Cells: Insights from the Spectral Correlation of the Electrooptical Frequency Techniques de06433fccc0514dcf45aa9d1fc5c60f Adam Pockett Adam Pockett true false 75c81a7d972e97c42200ab0ebfa21908 Dimitrios Raptis Dimitrios Raptis true false a210327b52472cfe8df9b8108d661457 0000-0002-8015-1436 Trystan Watson Trystan Watson true false 73b367694366a646b90bb15db32bb8c0 0000-0002-4232-1967 Matt Carnie Matt Carnie true false 2020-10-08 FGSEN Small perturbation techniques have proven to be useful tools for the investigation of perovskite solar cells. A correct interpretation of the spectra given by impedance spectroscopy (IS), intensity-modulated photocurrent spectroscopy (IMPS), and intensity-modulated photovoltage spectroscopy (IMVS) is key for the understanding of device operation. The utilization of a correct equivalent circuit to extract real parameters is essential to make this good interpretation. In this work, we present an equivalent circuit, which is able to reproduce the general and the exotic behaviors found in impedance spectra. From the measurements, we demonstrate that the midfrequency features that may appear to depend on the active layer thickness, and we also prove the spectral correlation of the three techniques that has been suggested theoretically. Journal Article The Journal of Physical Chemistry Letters 11 20 8654 8659 American Chemical Society (ACS) 1948-7185 1948-7185 15 10 2020 2020-10-15 10.1021/acs.jpclett.0c02459 COLLEGE NANME Science and Engineering - Faculty COLLEGE CODE FGSEN Swansea University UKRI, EP/N020863/1 2021-08-05T16:33:15.9873328 2020-10-08T11:03:13.1696391 Faculty of Science and Engineering School of Engineering and Applied Sciences - Materials Science and Engineering Agustín Bou 1 Adam Pockett 2 Dimitrios Raptis 3 Trystan Watson 0000-0002-8015-1436 4 Matt Carnie 0000-0002-4232-1967 5 Juan Bisquert 6 55378__18527__fe583d3aff544c3098dccabbca95dd64.pdf 55378.pdf 2020-10-29T10:15:23.7185057 Output 1596543 application/pdf Version of Record true This is an open access article published under a Creative Commons Attribution (CC-BY) License true eng http://pubs.acs.org/page/policy/authorchoice_ccby_termsofuse.html
title Beyond Impedance Spectroscopy of Perovskite Solar Cells: Insights from the Spectral Correlation of the Electrooptical Frequency Techniques
spellingShingle Beyond Impedance Spectroscopy of Perovskite Solar Cells: Insights from the Spectral Correlation of the Electrooptical Frequency Techniques
Adam Pockett
Dimitrios Raptis
Trystan Watson
Matt Carnie
title_short Beyond Impedance Spectroscopy of Perovskite Solar Cells: Insights from the Spectral Correlation of the Electrooptical Frequency Techniques
title_full Beyond Impedance Spectroscopy of Perovskite Solar Cells: Insights from the Spectral Correlation of the Electrooptical Frequency Techniques
title_fullStr Beyond Impedance Spectroscopy of Perovskite Solar Cells: Insights from the Spectral Correlation of the Electrooptical Frequency Techniques
title_full_unstemmed Beyond Impedance Spectroscopy of Perovskite Solar Cells: Insights from the Spectral Correlation of the Electrooptical Frequency Techniques
title_sort Beyond Impedance Spectroscopy of Perovskite Solar Cells: Insights from the Spectral Correlation of the Electrooptical Frequency Techniques
author_id_str_mv de06433fccc0514dcf45aa9d1fc5c60f
75c81a7d972e97c42200ab0ebfa21908
a210327b52472cfe8df9b8108d661457
73b367694366a646b90bb15db32bb8c0
author_id_fullname_str_mv de06433fccc0514dcf45aa9d1fc5c60f_***_Adam Pockett
75c81a7d972e97c42200ab0ebfa21908_***_Dimitrios Raptis
a210327b52472cfe8df9b8108d661457_***_Trystan Watson
73b367694366a646b90bb15db32bb8c0_***_Matt Carnie
author Adam Pockett
Dimitrios Raptis
Trystan Watson
Matt Carnie
author2 Agustín Bou
Adam Pockett
Dimitrios Raptis
Trystan Watson
Matt Carnie
Juan Bisquert
format Journal article
container_title The Journal of Physical Chemistry Letters
container_volume 11
container_issue 20
container_start_page 8654
publishDate 2020
institution Swansea University
issn 1948-7185
1948-7185
doi_str_mv 10.1021/acs.jpclett.0c02459
publisher American Chemical Society (ACS)
college_str Faculty of Science and Engineering
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hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Engineering and Applied Sciences - Materials Science and Engineering{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Engineering and Applied Sciences - Materials Science and Engineering
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description Small perturbation techniques have proven to be useful tools for the investigation of perovskite solar cells. A correct interpretation of the spectra given by impedance spectroscopy (IS), intensity-modulated photocurrent spectroscopy (IMPS), and intensity-modulated photovoltage spectroscopy (IMVS) is key for the understanding of device operation. The utilization of a correct equivalent circuit to extract real parameters is essential to make this good interpretation. In this work, we present an equivalent circuit, which is able to reproduce the general and the exotic behaviors found in impedance spectra. From the measurements, we demonstrate that the midfrequency features that may appear to depend on the active layer thickness, and we also prove the spectral correlation of the three techniques that has been suggested theoretically.
published_date 2020-10-15T04:09:32Z
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