Static Disorder in Lead Halide Perovskites

Zeiske, Stefan; Sandberg, Oskar; Zarrabi, Nasim; Wolff, Christian M.; Raoufi, Meysam; Peña-Camargo, Francisco; Gutierrez-Partida, Emilio; Meredith, Paul; Stolterfoht, Martin; Armin, Ardalan

doi:10.1021/acs.jpclett.2c01652

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Static Disorder in Lead Halide Perovskites

Stefan Zeiske, Oskar Sandberg

, Nasim Zarrabi, Christian M. Wolff

, Meysam Raoufi, Francisco Peña-Camargo

, Emilio Gutierrez-Partida, Paul Meredith

, Martin Stolterfoht

, Ardalan Armin

The Journal of Physical Chemistry Letters, Volume: 13, Issue: 31, Pages: 7280 - 7285

Swansea University Authors: Stefan Zeiske, Oskar Sandberg , Nasim Zarrabi, Paul Meredith , Ardalan Armin

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DOI (Published version): 10.1021/acs.jpclett.2c01652

Abstract

In crystalline and amorphous semiconductors, the temperature-dependent Urbach energy can be determined from the inverse slope of the logarithm of the absorption spectrum and reflects the static and dynamic energetic disorder. Using recent advances in the sensitivity of photocurrent spectroscopy meth...

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Published in:	The Journal of Physical Chemistry Letters
ISSN:	1948-7185 1948-7185
Published:	American Chemical Society (ACS) 2022
Online Access:	Check full text
URI:	https://cronfa.swan.ac.uk/Record/cronfa60632

first_indexed	2022-07-26T11:02:39Z
last_indexed	2023-01-13T19:20:54Z
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Using recent advances in the sensitivity of photocurrent spectroscopy methods, we elucidate the temperature-dependent Urbach energy in lead halide perovskites containing different numbers of cation components. We find Urbach energies at room temperature to be 13.0 ± 1.0, 13.2 ± 1.0, and 13.5 ± 1.0 meV for single, double, and triple cation perovskite. Static, temperature-independent contributions to the Urbach energy are found to be as low as 5.1 ± 0.5, 4.7 ± 0.3, and 3.3 ± 0.9 meV for the same systems. Our results suggest that, at a low temperature, the dominant static disorder in perovskites is derived from zero-point phonon energy rather than structural disorder. 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spelling	2022-09-02T10:59:11.0516401 v2 60632 2022-07-26 Static Disorder in Lead Halide Perovskites 0c9c5b89df9ac882c3e09dd1a9f28fc5 Stefan Zeiske Stefan Zeiske true false 9e91512a54d5aee66cd77851a96ba747 0000-0003-3778-8746 Oskar Sandberg Oskar Sandberg true false d20976a5892074dae0368a4bb4433f76 Nasim Zarrabi Nasim Zarrabi true false 31e8fe57fa180d418afd48c3af280c2e 0000-0002-9049-7414 Paul Meredith Paul Meredith true false 22b270622d739d81e131bec7a819e2fd Ardalan Armin Ardalan Armin true false 2022-07-26 BGPS In crystalline and amorphous semiconductors, the temperature-dependent Urbach energy can be determined from the inverse slope of the logarithm of the absorption spectrum and reflects the static and dynamic energetic disorder. Using recent advances in the sensitivity of photocurrent spectroscopy methods, we elucidate the temperature-dependent Urbach energy in lead halide perovskites containing different numbers of cation components. We find Urbach energies at room temperature to be 13.0 ± 1.0, 13.2 ± 1.0, and 13.5 ± 1.0 meV for single, double, and triple cation perovskite. Static, temperature-independent contributions to the Urbach energy are found to be as low as 5.1 ± 0.5, 4.7 ± 0.3, and 3.3 ± 0.9 meV for the same systems. Our results suggest that, at a low temperature, the dominant static disorder in perovskites is derived from zero-point phonon energy rather than structural disorder. This is unusual for solution-processed semiconductors but broadens the potential application of perovskites further to quantum electronics and devices. Journal Article The Journal of Physical Chemistry Letters 13 31 7280 7285 American Chemical Society (ACS) 1948-7185 1948-7185 11 8 2022 2022-08-11 10.1021/acs.jpclett.2c01652 COLLEGE NANME Biosciences Geography and Physics School COLLEGE CODE BGPS Swansea University SU Library paid the OA fee (TA Institutional Deal) Llywodraeth Cymru Deutsche Forschungsgemeinschaft - 498155101, 423749265, 424709669 - SPP 2196; UK Research and Innovation - EP/T028511/1 2022-09-02T10:59:11.0516401 2022-07-26T12:01:30.7138356 Faculty of Science and Engineering School of Biosciences, Geography and Physics - Physics Stefan Zeiske 1 Oskar Sandberg 0000-0003-3778-8746 2 Nasim Zarrabi 3 Christian M. Wolff 0000-0002-7210-1869 4 Meysam Raoufi 5 Francisco Peña-Camargo 0000-0002-8402-4266 6 Emilio Gutierrez-Partida 7 Paul Meredith 0000-0002-9049-7414 8 Martin Stolterfoht 0000-0002-4023-2178 9 Ardalan Armin 10 60632__24874__f8b8cb7cdf9c42baaa5ace620f9cba97.pdf 60632.pdf 2022-08-05T13:05:04.9793893 Output 1810025 application/pdf Version of Record true Released under the terms of a Creative Commons Attribution 4.0 International (CC BY 4.0) License true eng https://creativecommons.org/licenses/by/4.0/
title	Static Disorder in Lead Halide Perovskites
spellingShingle	Static Disorder in Lead Halide Perovskites Stefan Zeiske Oskar Sandberg Nasim Zarrabi Paul Meredith Ardalan Armin
title_short	Static Disorder in Lead Halide Perovskites
title_full	Static Disorder in Lead Halide Perovskites
title_fullStr	Static Disorder in Lead Halide Perovskites
title_full_unstemmed	Static Disorder in Lead Halide Perovskites
title_sort	Static Disorder in Lead Halide Perovskites
author_id_str_mv	0c9c5b89df9ac882c3e09dd1a9f28fc5 9e91512a54d5aee66cd77851a96ba747 d20976a5892074dae0368a4bb4433f76 31e8fe57fa180d418afd48c3af280c2e 22b270622d739d81e131bec7a819e2fd
author_id_fullname_str_mv	0c9c5b89df9ac882c3e09dd1a9f28fc5_*_Stefan Zeiske 9e91512a54d5aee66cd77851a96ba747__Oskar Sandberg d20976a5892074dae0368a4bb4433f76__Nasim Zarrabi 31e8fe57fa180d418afd48c3af280c2e__Paul Meredith 22b270622d739d81e131bec7a819e2fd_**_Ardalan Armin
author	Stefan Zeiske Oskar Sandberg Nasim Zarrabi Paul Meredith Ardalan Armin
author2	Stefan Zeiske Oskar Sandberg Nasim Zarrabi Christian M. Wolff Meysam Raoufi Francisco Peña-Camargo Emilio Gutierrez-Partida Paul Meredith Martin Stolterfoht Ardalan Armin
format	Journal article
container_title	The Journal of Physical Chemistry Letters
container_volume	13
container_issue	31
container_start_page	7280
publishDate	2022
institution	Swansea University
issn	1948-7185 1948-7185
doi_str_mv	10.1021/acs.jpclett.2c01652
publisher	American Chemical Society (ACS)
college_str	Faculty of Science and Engineering
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department_str	School of Biosciences, Geography and Physics - Physics{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Biosciences, Geography and Physics - Physics
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description	In crystalline and amorphous semiconductors, the temperature-dependent Urbach energy can be determined from the inverse slope of the logarithm of the absorption spectrum and reflects the static and dynamic energetic disorder. Using recent advances in the sensitivity of photocurrent spectroscopy methods, we elucidate the temperature-dependent Urbach energy in lead halide perovskites containing different numbers of cation components. We find Urbach energies at room temperature to be 13.0 ± 1.0, 13.2 ± 1.0, and 13.5 ± 1.0 meV for single, double, and triple cation perovskite. Static, temperature-independent contributions to the Urbach energy are found to be as low as 5.1 ± 0.5, 4.7 ± 0.3, and 3.3 ± 0.9 meV for the same systems. Our results suggest that, at a low temperature, the dominant static disorder in perovskites is derived from zero-point phonon energy rather than structural disorder. This is unusual for solution-processed semiconductors but broadens the potential application of perovskites further to quantum electronics and devices.
published_date	2022-08-11T20:13:38Z
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Static Disorder in Lead Halide Perovskites

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