Phase and elemental analysis were performed for amorphous nanosized thin films of (InSe)20(GaSe)80 and (InSe)50(GaSe)50 compositions, and surface morphology studies were conducted. Optical transmission studies of thin films allowed us to establish that absorption corresponds to indirect allowed transitions for these compositions in accordance with the Tauc model, while the values of the optical band gap are Eg = 1.26 eV for (InSe)20(GaSe)80 and 1.07 eV for (InSe)50(GaSe)50 thin films.
Sergey A. Kozyukhin – Dr. Sc. (Phys. Chemistry), Professor, chief researcher, Kurnakov Institute of General and Inorganic Chemistry of the Russian Academy of Sciences, Moscow, Russia; Herzen State Pedagogical University, St. Petersburg, Russia
Dmitry V. Pepelyaev – junior researcher, Kurnakov Institute of General and Inorganic Chemistry of the Russian Academy of Sciences, Moscow, Russia
Mariia A. Teplonogova – junior researcher, Kurnakov Institute of General and Inorganic Chemistry of the Russian Academy of Sciences, Moscow, Russia
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