Abstract
Cadmium peroxide films were grown by chemical bath deposition on glass slides at 50 °C using CdCl2 as cadmium source. Films were deposited at different nominal cadmium concentrations. As-grown films were annealed in air at 300 °C for obtaining cadmium oxide thin films. The structural, morphological, optical and compositional properties of CdO films were analyzed in terms of the cadmium nominal composition and the annealing effect.
Highlights
Transparent conducting oxide thin films have important applications in the opto-electronics field as transparent electrodes [1], liquid crystal displays, IR detectors, thin film solar cells [2], etc
We report on the influence of the cadmium nominal concentration in the CdO2 formation by chemical bath deposition (CBD), and the formation of CdO by annealing in air
Cadmium peroxide (CdO2) films were obtained by CBD using CdCl2 as cadmium source
Summary
Transparent conducting oxide thin films have important applications in the opto-electronics field as transparent electrodes [1], liquid crystal displays, IR detectors, thin film solar cells [2], etc. Cadmium oxide is an n-type semiconductor with a high mobility at room temperature (~ 216 cm2V-1s-1) and a bandgap value calculated in 2.18 eV [3], properties that make this material ideal for solar cells applications. For synthesizing CdO films by CBD, first CdO2 or Cd(OH) films are obtained and subsequently are subjected to a heat treatment [2,4]. We report on the influence of the cadmium nominal concentration in the CdO2 formation by CBD, and the formation of CdO by annealing in air
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