What is it about?
The molecule vibration modes of monolayer and bulk WSe2 was analyzed by factor group and the phonons dispersion and vibration frequency was calculated by first-principles based on density functional theory.
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Why is it important?
The transition metal dichalcogenides has a unique phonon structure, in which the phonons change with the layers. Therefore, the study of lattice vibration and phonons plays an important role in lattice particle dynamics and electron transport.
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This page is a summary of: Molecular Vibration Theoretical Analysis of Two-Dimensional Photoelectric Conversion Material WSe2, Key Engineering Materials, March 2018, Trans Tech Publications,
DOI: 10.4028/www.scientific.net/kem.765.16.
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