Near-edge Optical Properties of Layered Tin Sulfide (Selenide) Crystals

ZALAMAI, V. V.; TIRON, A. V.; RUSU, E. V.; MONAICO, E. V.; SYRBU, N. N.

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Near-edge Optical Properties of Layered Tin Sulfide (Selenide) Crystals

ZALAMAI, V. V.; TIRON, A. V.; RUSU, E. V.; MONAICO, E. V.; SYRBU, N. N.

URI: http://repository.utm.md/handle/5014/8414
https://doi.org/10.1007/978-3-030-31866-6_25

Date: 2019

Abstract:

Absorption (K), reflection (R) and wavelength modulated transmission (ΔT/Δλ) spectra in SnS, SnS2 and SnSe crystals were investigated in temperature range from 300 to 10 K. Excitonic states were discovered in all investigated compounds. Parameters of observed excitons and character of electron transitions participating in absorption edge formation were determined. Optical anisotropy in interband gap minimum was investigated.