Babatunde, R.A. and Bolanle, Y.I. (2019) EFFECTS OF THIOUREA CONCENTRATION IN FORMATION OF ZNS THIN FILMS GROWN BY CHEMICAL BATH DEPOSITION FOR HETEROJUNCTION SOLAR CELL. In: Book of Proceedings of 4th National Development Conference of The School of Pure and Applied Science, The Federal Polytechnic Ilaro, Ogun State, 2nd - 5th December, 2019, The Federal Polytechnic, Ilaro.
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2019 SPAS_15 conf paper R.A and Y.I.pdf Download (2MB) |
Abstract
The effect of sulphur concentration was investigated on optical and morphological properties of synthesized Zinc Sulphide thin film (ZnS). . ZnS thin films were prepared at different concentrationsof thiourea onto the glass substrates by chemical bath deposition technique at a constant deposition temperature and time of 500C and 1 hour respectively. .The precursor was prepared using mixed aqueous solution of zinc sulphate as a source of zinc and thiourea as a source of sulphur while ammonia serves as a complexing agent. After the deposition, thickness of the samples were determined using double weighing method. Morphological and optical properties of the films were determined using scanning electron microscope (SEM PHENON WORD) andUV-visible double beam spectrophotometer (ATICO) respectively. The result shows that transmittance spectral increases in the visible region of wavelength 400nm to 800nm and decreases in the infrared region at above 800nm wavelength.. The extrapolated optical band gap energy for the film deposited increases from 3.7 eV to 3.9 eV as concentration increases. The microstructural images of all the samples were rough and the grains were dense.
| Item Type: | Conference or Workshop Item (Paper) |
|---|---|
| Subjects: | Q Science > Q Science (General) Q Science > QC Physics Q Science > QD Chemistry |
| Divisions: | Faculty of Engineering, Science and Mathematics > School of Physics |
| Depositing User: | Mr. Bolanle Yisau I. |
| Date Deposited: | 17 May 2021 14:52 |
| Last Modified: | 17 May 2021 14:52 |
| URI: | http://eprints.federalpolyilaro.edu.ng/id/eprint/1316 |
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