Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Tailoring the Electron and Hole Landé Factors in Lead Halide Perovskite Nanocrystals by Quantum Confinement and Halide Exchange. / Nestoklon, M. O.; Kirstein, Erik; Yakovlev, Dmitri R.; Zhukov, E.A.; Глазов, Михаил Михайлович; Semina, M. A.; Ивченко, Еугениюс Левович; Kolobkova, Elena V.; Кузнецова, Мария Сергеевна; Bayer, Manfred.
в: Nano Letters, Том 23, № 17, 30.08.2023, стр. 8218-8224.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Tailoring the Electron and Hole Landé Factors in Lead Halide Perovskite Nanocrystals by Quantum Confinement and Halide Exchange
AU - Nestoklon, M. O.
AU - Kirstein, Erik
AU - Yakovlev, Dmitri R.
AU - Zhukov, E.A.
AU - Глазов, Михаил Михайлович
AU - Semina, M. A.
AU - Ивченко, Еугениюс Левович
AU - Kolobkova, Elena V.
AU - Кузнецова, Мария Сергеевна
AU - Bayer, Manfred
PY - 2023/8/30
Y1 - 2023/8/30
N2 - The tunability of the optical properties of lead halide perovskite nanocrystals makes them highly appealing for applications. Halide anion exchange and quantum confinement enable tailoring of the band gap. For spintronics, the Landé g-factors of electrons and holes are essential. Using empirical tight-binding and k·p methods, we calculate them for nanocrystals of all-inorganic lead halide perovskites CsPbX3 (X = I, Br, Cl). The hole g-factor band gap dependence follows the universal law found for bulk perovskites, while for electrons, a considerable modification is predicted. Based on the k·p analysis, we conclude that this difference arises from the interaction of the bottom conduction band with the spin-orbit split electron states. These predictions are confirmed experimentally for electron and hole g-factors in CsPbI3 nanocrystals in a glass matrix, measured by time-resolved Faraday ellipticity in a magnetic field at cryogenic temperatures.
AB - The tunability of the optical properties of lead halide perovskite nanocrystals makes them highly appealing for applications. Halide anion exchange and quantum confinement enable tailoring of the band gap. For spintronics, the Landé g-factors of electrons and holes are essential. Using empirical tight-binding and k·p methods, we calculate them for nanocrystals of all-inorganic lead halide perovskites CsPbX3 (X = I, Br, Cl). The hole g-factor band gap dependence follows the universal law found for bulk perovskites, while for electrons, a considerable modification is predicted. Based on the k·p analysis, we conclude that this difference arises from the interaction of the bottom conduction band with the spin-orbit split electron states. These predictions are confirmed experimentally for electron and hole g-factors in CsPbI3 nanocrystals in a glass matrix, measured by time-resolved Faraday ellipticity in a magnetic field at cryogenic temperatures.
KW - g-factors
KW - k·p theory
KW - nanocrystals
KW - perovskites
KW - tight-binding method
KW - time-resolved Faraday spectroscopy
UR - https://www.mendeley.com/catalogue/dd18c781-eb69-381b-b4e1-d7539e082016/
U2 - 10.1021/acs.nanolett.3c02349
DO - 10.1021/acs.nanolett.3c02349
M3 - Article
VL - 23
SP - 8218
EP - 8224
JO - Nano Letters
JF - Nano Letters
SN - 1530-6984
IS - 17
ER -
ID: 111014852