Abstract

${\mathrm{ZnO}}_{1-x}{\mathrm{Se}}_x$ ($0\le x\le 0.11$) thin films have been grown on sapphire ($c-{\mathrm{Al}}_2{\mathrm{O}}_3$) substrates at the temperature of 350°C by means of the radio-frequency magnetron sputtering technique. The optical transmission, reflectance, and luminescence spectra at room temperature were analyzed. Using the $\lambda$-modulation method gives the possibility to reveal the main features of the energy band structure and the nature of the radiative transitions that cause ultraviolet luminescence.

© 2014 Optical Society of America

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