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Absorption of Thin ZnSe, ZnS and ZnSxSe1-xFilms under High Hydrostatic Pressure
1995
Acta Physica Polonica. A
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We present absorption measurements on free-standing ZnSe, ZnS and Z n S x S e 1x f i l m s ( d = 0 . 4 . . . 2 μ m ) u n d e r h y d r o s t a t i c p r e s s u r e u p t o 1 5 G P a . The refraction index n(λ, P) of ZnS and ZnSe in the transparent region up to 800 nm and the pressure shift of the E0 absorption edge of ZnSe and some ZnS x Se1x -compositions was investigated at 293 K. At 2 K free exciton states near the E0-and E0 + Δ0 -gap are visible in absorption. Increase in the Rydberg
doi:10.12693/aphyspola.88.995
fatcat:ojm26nmlkjhmdbh6z6yi46ghii