Visnyk of the Lviv University. Series Physics 57 (2020) ρ. 56-64
DOI: https://doi.org/10.30970/vph.57.2020.56

Effect of Dopant Concentration and Crystalline Structure on Absorption Edge of ZnO:Co Films

B. Turko, L. Toporovska, Y. Eliyashevskyi, V. Kapustianyk, U. Mostovoy, Y. Kulyk, M. Rudko

We have studied the crystalline structure and absorption spectra for zinc oxide films with different levels of doping with cobalt, deposited by high-frequency magnetron sputtering on the glass substrates. We estimated the concentration of the free charge carriers and showed that the shift of the fundamental absorption edge in ZnO:Co films with dopant level increasing is explained by the Burstein–Moss effect.

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