Structural and optical properties of RF-sputtered CdTe thin films grown on CdS:O/CdS bilayers
Cadmium sulfide; Cadmium telluride; Crystallite size; Energy gap; Glass substrates; II-VI semiconductors; Light transmission; Magnetron sputtering; Optical constants; Optical films; Optical properties; Argon ambient; Bi-layer; Different substrates; Polycrystalline; R.F. magnetron sputtering; RF sput...
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International Journal of Renewable Energy Research
2023
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my.uniten.dspace-257292023-05-29T16:13:28Z Structural and optical properties of RF-sputtered CdTe thin films grown on CdS:O/CdS bilayers Das N.K. Farhad S.F.U. Chakaraborty J. Gupta A.K.S. Dey M. Al-Mamun M. Matin M.A. Amin N. 34867805900 57219816966 57216892093 57203811680 56297554400 57924957700 57220488718 7102424614 Cadmium sulfide; Cadmium telluride; Crystallite size; Energy gap; Glass substrates; II-VI semiconductors; Light transmission; Magnetron sputtering; Optical constants; Optical films; Optical properties; Argon ambient; Bi-layer; Different substrates; Polycrystalline; R.F. magnetron sputtering; RF sputtering; Structural and optical properties; Substrates temperature; Thin-films; XRD spectra; Thin films In this work, we report the structural and optical properties of CdTe thin films on Oxygenated Cadmium Sulfide (CdS:O)/Cadmium Sulfide (CdS) bilayers using RF magnetron sputtering for different substrate temperatures (150, 200, 250, 300 and 350 �C) in Argon ambient. The XRD spectra reveal the polycrystalline nature of all the CdTe thin films with preferential cubic orientation along (111) directions. Raman Spectra show the dominant peak at 163.5 cm-1 and its overtone at 328.7 cm-1 which corresponds to the longitudinal optical (LO) phonon of CdTe. The SEM microscopy exhibits the uniform growth of CdTe films onto the entire glass substrate. Improved spectral response is observed for CdS:O layer and CdS:O/CdS bilayer in comparison with the CdS layer. The optical transmission of the CdTe films begins at the edge of 800 nm wavelength and shows interference fringe in the transmission spectra. The thickness of the deposited films and the optical constants are calculated from the fringe pattern. The thicknesses of the CdTe films are found to be increasing from 2.34 ?m to 2.82 ?m with the increasing substrate temperature i.e. from 150 to 250�C. Thereafter, the CdTe film thickness decreases to 2.24 ?m while the temperature increases further up to 350�C. The optical bandgap of the deposited CdTe films follows an increasing trend of 1.48 eV to 1.54 eV with the increase of substrate temperature 150 to 250�C after that the bandgap decreases to 1.51 eV for 350�C. Hence the obtained structural and optical properties suggest that the deposited CdTe films can be used as a suitable absorber layer for the thin film-based solar cells. � 2020, International Journal of Renewable Energy Research. Final 2023-05-29T08:13:28Z 2023-05-29T08:13:28Z 2020 Article 2-s2.0-85085118232 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85085118232&partnerID=40&md5=9a4c264b075df18715db5682c4a92878 https://irepository.uniten.edu.my/handle/123456789/25729 10 1 293 302 International Journal of Renewable Energy Research Scopus |
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Cadmium sulfide; Cadmium telluride; Crystallite size; Energy gap; Glass substrates; II-VI semiconductors; Light transmission; Magnetron sputtering; Optical constants; Optical films; Optical properties; Argon ambient; Bi-layer; Different substrates; Polycrystalline; R.F. magnetron sputtering; RF sputtering; Structural and optical properties; Substrates temperature; Thin-films; XRD spectra; Thin films |
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34867805900 Das N.K. Farhad S.F.U. Chakaraborty J. Gupta A.K.S. Dey M. Al-Mamun M. Matin M.A. Amin N. |
| format |
Article |
| author |
Das N.K. Farhad S.F.U. Chakaraborty J. Gupta A.K.S. Dey M. Al-Mamun M. Matin M.A. Amin N. |
| spellingShingle |
Das N.K. Farhad S.F.U. Chakaraborty J. Gupta A.K.S. Dey M. Al-Mamun M. Matin M.A. Amin N. Structural and optical properties of RF-sputtered CdTe thin films grown on CdS:O/CdS bilayers |
| author_sort |
Das N.K. |
| title |
Structural and optical properties of RF-sputtered CdTe thin films grown on CdS:O/CdS bilayers |
| title_short |
Structural and optical properties of RF-sputtered CdTe thin films grown on CdS:O/CdS bilayers |
| title_full |
Structural and optical properties of RF-sputtered CdTe thin films grown on CdS:O/CdS bilayers |
| title_fullStr |
Structural and optical properties of RF-sputtered CdTe thin films grown on CdS:O/CdS bilayers |
| title_full_unstemmed |
Structural and optical properties of RF-sputtered CdTe thin films grown on CdS:O/CdS bilayers |
| title_sort |
structural and optical properties of rf-sputtered cdte thin films grown on cds:o/cds bilayers |
| publisher |
International Journal of Renewable Energy Research |
| publishDate |
2023 |
| _version_ |
1806426589970300928 |