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Temperature Dependence of the Indirect Gap and the Direct Optical Transitions at the High-Symmetry Point of the Brillouin Zone and Band Nesting in MoS₂, MoSe₂, MoTe₂, WS₂, and WSe₂ Crystals.

ABSTRACT: Following the rise of interest in the properties of transition metal dichalcogenides, many experimental techniques were employed to research them. However, the temperature dependencies of optical transitions, especially those related to band nesting, were not analyzed in detail for many of them. Here, we present successful studies utilizing the photoreflectance method, which, due to its derivative and absorption-like character, allows investigating direct optical transitions at the high-symmetry point of the Brillouin zone and band nesting. By studying the mentioned optical transitions with temperature from 20 to 300 K, we tracked changes in the electronic band structure for the common transition metal dichalcogenides (TMDs), namely, MoS₂, MoSe₂, MoTe₂, WS<

SUBMITTER: Kopaczek J

PROVIDER: S-EPMC8978178 | biostudies-literature | 2022 Mar

REPOSITORIES: biostudies-literature

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Dataset Information

Temperature Dependence of the Indirect Gap and the Direct Optical Transitions at the High-Symmetry Point of the Brillouin Zone and Band Nesting in MoS₂, MoSe₂, MoTe₂, WS₂, and WSe₂ Crystals.

OmicsDI is part of the ELIXIR infrastructure

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Dataset Information

Temperature Dependence of the Indirect Gap and the Direct Optical Transitions at the High-Symmetry Point of the Brillouin Zone and Band Nesting in MoS2, MoSe2, MoTe2, WS2, and WSe2 Crystals.

OmicsDI is part of the ELIXIR infrastructure

Tweets

Temperature Dependence of the Indirect Gap and the Direct Optical Transitions at the High-Symmetry Point of the Brillouin Zone and Band Nesting in MoS₂, MoSe₂, MoTe₂, WS₂, and WSe₂ Crystals.