Recent Advancements in Multidimensional Applications of Nanotechnology

Investigation of the Effect of Annealing Conditions on Chemical Bath Deposited CdTe Thin- film from Non-Aqueous Bath

Author(s): Sudeshna Surabhi*, Kumar Anurag and S. R. Kumar

Pp: 145-161 (17)

DOI: 10.2174/9789815238846124010009

* (Excluding Mailing and Handling)

Abstract

This research investigates the consistency of chemical bath deposition (CBD) for CdTe thin films. Films were deposited using tellurium dioxide and cadmium acetate in a non-aqueous medium at 160°C. The impact of subsequent annealing on the optical, structural, and surface properties of these films was examined. XRD, FTIR, UV-Vis, SEM, and photoluminescence techniques were used to characterize the films. EDS analysis revealed a Cd:Te ratio of 1.27 before annealing, which improved to 1.06 (closer to the ideal 1:1 ratio) after annealing. The average crystallite size of annealed CdTe film was around 25nm. Photoluminescence peaks were observed at 566 nm and 615 nm.


Keywords: Electrodeposition, FTIR spectroscopy, Schockley-Queisser, Spray pyrolysis.

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