Journal of Physical Studies 6(2), 185–187 (2002) DOI: https://doi.org/10.30970/jps.06.185 THE INFLUENCE OF HYDROGEN ON THE OPTICAL PROPERTIES OF GaSe Z. D. Kovalyuk, M. M. Pyrlya, V. B. Boledzyuk Chernivtsi Department of the Institute of Materials Science Problems, National Academy of Sciences of Ukraine, 5 Iryna Vilde Str., Chernivtsi, UA–58001, Ukraine

In the temperature range from 77 to 293 K the transmission spectra in the excitonic absorption range are investigated for GaSe crystals intercalated with hydrogen. We have observed non-monotonous concentration dependences of the energy location of the excitonic maximum $E_{ех}$ and exitonic half-width $Δ H$. The obtained $E_{ех}(x)$ and $Δ H(x)$ dependences for H$_{x}$GaSe intercalates $(0 PACS number(s): 71.35.Cc, 78.40.Fy

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