This article is cited in 5 papers

Surface, interfaces, thin films

A comparative study on CdS film formation under variable and steady bath-temperature conditions

R.K.K.G.R.G Kumarasinghe^ab, W. G. C. Kumarage^c, R. P. Wijesundera^d, N. Kaur^e, E. Comini^e, B. S. Dassanayake<sup>ab

a</sup> Postgraduate Institute of Science, University of Peradeniya, Peradeniya, Sri Lanka
^b Department of Physics, University of Peradeniya, Peradeniya, Sri Lanka
^c Research and International Affairs, Sri Lanka Technological Campus, Padukka, Sri Lanka
^d Department of Physics, Faculty of Science, University of Kelaniya, Kelaniya, Sri Lanka
^e Department of Information Engineering, Universitá Degli Studi Di Brescia, Brescia, Italy

Abstract: The deposition temperature of the bath in chemical-bath-deposited cadmium-sulfide thin films can directly affect the optical, electrical, structural as well as morphological properties of deposited thin films. The reporting work discusses the properties of chemical-bath-deposited cadmium-sulfide thin films deposited under steady chemical- bath temperature conditions at both 40 and 80$^\circ$C and compares with films formed under variable bath-temperature conditions by varying the temperature of the chemical bath from 40 to 80$^\circ$C and 80 to 40$^\circ$ C while depositing. The optical, electrical, structural, and morphological properties of the deposited films were examined by using ultraviolet-visible spectroscopy, photo-electrochemical cell, Mott–Schottky measurements, grazing incident X-ray diffractograms, scanning electron microscopy, and profilometry. According to the results, films deposited under steady chemical-bath temperature conditions show better optoelectronic properties compared to the rest, while films fabricated at 40$^\circ$ C are the best.

Keywords: CBD, CdS, bath temperature, variable bath temperature, steady bath temperature.

Received: 16.10.2019
Revised: 16.12.2019
Accepted: 18.02.2020

Language: English

 English version: Semiconductors, 2020, 54:8, 838–843