Abstract
Thin films of indium doped cadmium oxide have been developed on glass by sol–gel dipping process. Four different In: Cd atomic ratios, 01: 99, 04: 96, 07: 93, 10: 90 were selected initially for the precursors to develop nanostructured films. Microstructure evaluation by SEM, FESEM and TEM experiments has led to the detailed study of the films of In: Cd = 10: 90 prepared in different atmospheres. XRD depicted cubic In2O3, CdO along with spinel CdIn2O4 and wurtzite CdO preferably in nitrogen atmosphere. Band gap evaluation highlighted the excitonic transitions for the occurrence of quantum confinement in the nanoclusters. Photoluminescence (PL) of the films exhibited the presence of free exciton, bound exciton and interaction of excitons with LO phonons of wurtzite CdO evidenced from the satellite peaks of PL emission bands.
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