Open Access
Nanomaterials, volume 13, issue 17, pages 2454
Coherent Spin Dynamics of Electrons in CsPbBr3 Perovskite Nanocrystals at Room Temperature
Publication type: Journal Article
Publication date: 2023-08-30
General Chemical Engineering
General Materials Science
Abstract
Coherent spin dynamics of charge carriers in CsPbBr3 perovskite nanocrystals are studied in a temperature range of 4–300 K and in magnetic fields of up to 500 mT using time-resolved pump-probe Faraday rotation and differential transmission techniques. We detect electron spin Larmor precession in the entire temperature range. At temperatures below 50 K, hole spin precession is also observed. The temperature dependences of spin-related parameters, such as Landè g-factor and spin dephasing time are measured and analyzed. The electron g-factor increases with growing temperature, which can not be described by the temperature-induced band gap renormalization. We find that photocharging of the nanocrystals with either electrons or holes depends on the sample cooling regime, namely the cooling rate and illumination conditions. The type of the charge carrier provided by the photocharging can be identified via the carrier spin Larmor precession.
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Nano Research
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Nano Research
1 publication, 50%
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Journal of Physical Chemistry Letters
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Journal of Physical Chemistry Letters
1 publication, 50%
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Springer Nature
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Springer Nature
1 publication, 50%
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American Chemical Society (ACS)
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American Chemical Society (ACS)
1 publication, 50%
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Melyakov S. R. et al. Coherent Spin Dynamics of Electrons in CsPbBr3 Perovskite Nanocrystals at Room Temperature // Nanomaterials. 2023. Vol. 13. No. 17. p. 2454.
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Melyakov S. R., Zhukov E. A., Kulebyakina E. V., Belykh V., Yakovlev D. G. Coherent Spin Dynamics of Electrons in CsPbBr3 Perovskite Nanocrystals at Room Temperature // Nanomaterials. 2023. Vol. 13. No. 17. p. 2454.
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TY - JOUR
DO - 10.3390/nano13172454
UR - https://doi.org/10.3390%2Fnano13172454
TI - Coherent Spin Dynamics of Electrons in CsPbBr3 Perovskite Nanocrystals at Room Temperature
T2 - Nanomaterials
AU - Melyakov, S R
AU - Zhukov, E. A.
AU - Kulebyakina, Evgeniya V
AU - Belykh, V. V.
AU - Yakovlev, D G
PY - 2023
DA - 2023/08/30 00:00:00
PB - Multidisciplinary Digital Publishing Institute (MDPI)
SP - 2454
IS - 17
VL - 13
SN - 2079-4991
ER -
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@article{2023_Melyakov,
author = {S R Melyakov and E. A. Zhukov and Evgeniya V Kulebyakina and V. V. Belykh and D G Yakovlev},
title = {Coherent Spin Dynamics of Electrons in CsPbBr3 Perovskite Nanocrystals at Room Temperature},
journal = {Nanomaterials},
year = {2023},
volume = {13},
publisher = {Multidisciplinary Digital Publishing Institute (MDPI)},
month = {aug},
url = {https://doi.org/10.3390%2Fnano13172454},
number = {17},
pages = {2454},
doi = {10.3390/nano13172454}
}
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Melyakov, S. R., et al. “Coherent Spin Dynamics of Electrons in CsPbBr3 Perovskite Nanocrystals at Room Temperature.” Nanomaterials, vol. 13, no. 17, Aug. 2023, p. 2454. https://doi.org/10.3390%2Fnano13172454.