Оптические спектры кристаллов GaSe и GaS различной толщины | Zendy

В.Ф. Агекян | Zendy; А.Ю. Серов | Zendy; Н.Г. Философов | Zendy

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Оптические спектры кристаллов GaSe и GaS различной толщины

Author(s) -

В.Ф. Агекян,

А.Ю. Серов,

Н.Г. Философов

Publication year - 2018

Publication title -

физика твердого тела

Language(s) - English

Resource type - Journals

eISSN - 1726-7498

pISSN - 0367-3294

DOI - 10.21883/ftt.2018.06.46002.348

Subject(s) - exciton , binding energy , spectral line , materials science , stratification (seeds) , condensed matter physics , atomic physics , molecular physics , chemistry , physics , seed dormancy , germination , botany , astronomy , dormancy , biology

The transmission spectra of GaSe and GaS crystals of different thicknesses prepared by mechanical stratification of bulk crystals have been investigated. The quantum-size shifts of exciton resonances in thin GaSe samples are as high as 12 meV, which is close to the exciton binding energy. The high-energy interband transitions in GaSe and GaS are observed near 3.4 and 3.7 eV, respectively.

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