Journal of Physical Chemistry Letters, volume 13, issue 12, pages 2744-2749
Nanoscale Visualization of Photodegradation Dynamics of MAPbI3 Perovskite Films.
Ozerova Victoria V
1, 2
,
ZHIDKOV I. S.
3, 4
,
Korchagin Denis
1
,
Shilov G. V.
1
,
Litvinov Alexey L
1
,
Kurmaev Ernst Z
3, 4
,
Frolova Lyubov A
1
,
Aldoshin Sergey M.
1
,
Troshin Pavel A.
1, 5
5
Faculty of Chemistry, Silesian University of Technology, Strzody 9, 44-100 Gliwice, Poland
|
Publication type: Journal Article
Publication date: 2022-03-22
Quartile SCImago
Q1
Quartile WOS
Q1
Impact factor: 5.7
ISSN: 19487185
Physical and Theoretical Chemistry
General Materials Science
Abstract
Herein, we report the nanoscale visualization of the photochemical degradation dynamics of MAPbI3 (MA = CH3NH3+) using infrared scattering scanning near-field microscopy (IR s-SNOM) combined with a series of complementary analytical techniques such as UV-vis and FTIR-spectroscopy, XRD, and XPS. Light exposure of the MAPbI3 films resulted in a gradual loss of MA+ cations starting from the grain boundaries at the film surface and slowly progressing toward the center of the grains and deeper into the bulk perovskite phase. The binary lead iodide PbI2 was found to be the major perovskite photochemical degradation product under the experimental conditions used. Interestingly, the formation of the PbI2 skin over the perovskite grains resulted in a largely enhanced photoluminescence, which resembles the effects observed for core-shell quantum dots. The obtained results demonstrate that IR s-SNOM represents a powerful technique for studying the spatially resolved degradation dynamics of perovskite absorbers and revealing the associated material aging pathways.
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Emelianov N. A. et al. Nanoscale Visualization of Photodegradation Dynamics of MAPbI3 Perovskite Films. // Journal of Physical Chemistry Letters. 2022. Vol. 13. No. 12. pp. 2744-2749.
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Emelianov N. A., Ozerova V. V., ZHIDKOV I. S., Korchagin D., Shilov G. V., Litvinov A. L., Kurmaev E. Z., Frolova L. A., Aldoshin S. M., Troshin P. A. Nanoscale Visualization of Photodegradation Dynamics of MAPbI3 Perovskite Films. // Journal of Physical Chemistry Letters. 2022. Vol. 13. No. 12. pp. 2744-2749.
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TY - JOUR
DO - 10.1021/acs.jpclett.2c00497
UR - https://doi.org/10.1021%2Facs.jpclett.2c00497
TI - Nanoscale Visualization of Photodegradation Dynamics of MAPbI3 Perovskite Films.
T2 - Journal of Physical Chemistry Letters
AU - Ozerova, Victoria V
AU - Litvinov, Alexey L
AU - Kurmaev, Ernst Z
AU - Aldoshin, Sergey M.
AU - Emelianov, Nikita A.
AU - ZHIDKOV, I. S.
AU - Korchagin, Denis
AU - Shilov, G. V.
AU - Frolova, Lyubov A
AU - Troshin, Pavel A.
PY - 2022
DA - 2022/03/22 00:00:00
PB - American Chemical Society (ACS)
SP - 2744-2749
IS - 12
VL - 13
SN - 1948-7185
ER -
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@article{2022_Emelianov,
author = {Victoria V Ozerova and Alexey L Litvinov and Ernst Z Kurmaev and Sergey M. Aldoshin and Nikita A. Emelianov and I. S. ZHIDKOV and Denis Korchagin and G. V. Shilov and Lyubov A Frolova and Pavel A. Troshin},
title = {Nanoscale Visualization of Photodegradation Dynamics of MAPbI3 Perovskite Films.},
journal = {Journal of Physical Chemistry Letters},
year = {2022},
volume = {13},
publisher = {American Chemical Society (ACS)},
month = {mar},
url = {https://doi.org/10.1021%2Facs.jpclett.2c00497},
number = {12},
pages = {2744--2749},
doi = {10.1021/acs.jpclett.2c00497}
}
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Emelianov, Nikita A., et al. “Nanoscale Visualization of Photodegradation Dynamics of MAPbI3 Perovskite Films..” Journal of Physical Chemistry Letters, vol. 13, no. 12, Mar. 2022, pp. 2744-2749. https://doi.org/10.1021%2Facs.jpclett.2c00497.