A structural and optical properties of Cu‑doped ZnO flms prepared by spray pyrolysis
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Date
2020-01-23
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Applied Physics A, Springer-Verlag GmbH Germany, part of Springer Nature 2019
Abstract
Pure and Cu doped ZnO flms were grown by ultrasonic spray pyrolysis onto glass substrates at 450 °C for 30 min. This
study aims to investigate the infuence of Cu doping content [0.02–0.20] on structural, microstructural and optical proper ties. X-ray difraction analysis reveals a structural disorder depending on Cu loading besides the appearance of CuO phase.
The doping efectiveness is revealed by EDX analysis of the chemical composition of the flms. The transmittance shows
a decreasing tendency with increasing Cu concentration. The refractive indices increase, whereas the values of forbidden
energy gap decrease with the increase in Cu dopant concentration
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