Review of CdO thin films

Cadmium Oxide (CdO) thin film is one of the first transparent conducting oxide semiconductors. Its excellent optical and electronic properties have made CdO a promising material for flat panel displays. In this article, we provide a comprehensive review of the state-of-the-art research activities related to the ‘preparation-property-application’ triangle of CdO thin films.

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► Spray pyrolysis technique was widely used to prepare CdO thin films since 1975.
► Maximum energy band gap of CdO film is reported for Gd doping with 3.1 eV.
► Al-doped CdO film was reported to have high mobility with 459.56 cm2/Vs.