Optical Absorption of TaS₂ and TaSe₂ Transition-Metal Dichalcogenides

Abstract:

We present a theoretical study of the optical absorption of the group-V transition-metal dichalcogenids TaX₂ (X = S, Se) by using the Wannier tight-binding Hamiltonian method. The absorption spectra show diverse and interesting features, including dominant peaks and shoulder-like structures. We provide an in-depth discussion on the optical spectral structures based on the energy dispersion and density of states. This work can advance the understanding of optical properties of two-dimensional materials which is important in the search for proper candidates for next-generation electronic devices.

• Periodical: Solid State Phenomena (Volume 356)
• Pages: 113-117
• DOI: https://doi.org/10.4028/p-2afD0S
• Online since: March 2024
• Authors: Thi Nga Do*, Po Hsin Shih, Godfrey Gumbs
• Keywords: Optical Absorption Spectra, TMDC, Wannier Tight-Binding Hamiltonian

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