Abstract
Aluminum-doped zinc oxide (AZO) thin films have been deposited on amorphous fused silica substrates by pulsed laser ablation of a Zn:Al metallic targets. We varied the film growth condition such as the substrate temperature and Al concentrations. The films were deposited at substrate temperatures ranging from 20 to 600°C with oxygen partial pressure of 1 torr. The characteristics of the deposited films were examined by analyzing their photoluminescence (PL), X-ray diffraction (XRD), and UV–visible spectra. It is observed that the optical bandgap energy of the deposited films increased with the increase of Al concentration and substrate temperature. Besides, the PL peak energy shifted to blue and the Stokes shift became larger as the Al content increased.
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Alauddin, M., Song, J.K. & Park, S.M. Effects of aluminum doping and substrate temperature on zinc oxide thin films grown by pulsed laser deposition. Appl. Phys. A 101, 707–711 (2010). https://doi.org/10.1007/s00339-010-5925-4
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DOI: https://doi.org/10.1007/s00339-010-5925-4