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Room‐Temperature Photoluminescence in Layered ε‐GaSe, GaSe 0.9 S 0.1 , GaSe 0.8 S 0.2 under Pressure
Author(s) -
Masui A.,
Masui A.,
Allakhverdiev K.,
Gashimzade F.,
Mamedov T.
Publication year - 2001
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/1521-3951(200101)223:1<139::aid-pssb139>3.0.co;2-r
Subject(s) - photoluminescence , hydrostatic pressure , exciton , strain (injury) , materials science , spectral line , red shift , condensed matter physics , hydrostatic equilibrium , high pressure , optoelectronics , thermodynamics , physics , astrophysics , quantum mechanics , medicine , galaxy
Photoluminescence spectra of the direct free excitons and strain‐induced states in ε‐GaSe, GaSe 0.9 S 0.1 , and GaSe 0.8 S 0.2 under hydrostatic pressure up to 1 GPa are reported for the first time. Red‐shift and broadening with pressure were detected for all bands. The pressure coefficients of the direct free excitons and strain‐induced states were determined and compared with those existing in literature.