Effect of Te-concentration on physico-chemical properties electrodeposited CdTeSe thin films for solar cell application
Electrodeposition of CdTeSe thin films with two-electrode electrodeposition method in potentiostatic mode was performed at different TeO _2 concentrations of 0.075, 0.150, 0.225, 0.30, and 0.375 mM. The structural, optical, surface morphology, surface roughness, and compositional properties of as-de...
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| Format: | Article |
| Language: | English |
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IOP Publishing
2025-01-01
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| Series: | JPhys Energy |
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| Online Access: | https://doi.org/10.1088/2515-7655/adb64c |
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| author | A U Yimamu V N Adoons M K Hussen S Z Werta F B Dejene O K Echendu J J Terblans H C Swart S J Motloung |
| author_facet | A U Yimamu V N Adoons M K Hussen S Z Werta F B Dejene O K Echendu J J Terblans H C Swart S J Motloung |
| author_sort | A U Yimamu |
| collection | DOAJ |
| description | Electrodeposition of CdTeSe thin films with two-electrode electrodeposition method in potentiostatic mode was performed at different TeO _2 concentrations of 0.075, 0.150, 0.225, 0.30, and 0.375 mM. The structural, optical, surface morphology, surface roughness, and compositional properties of as-deposited (AD) and annealed (HT) CdTeSe thin film samples were investigated by using x-ray diffraction (XRD), ultraviolet-visible (UV-Vis) spectrophotometry, scanning electron microscopy, scanning probe microscopy and energy-dispersive x-ray spectroscopy, respectively. The XRD results confirmed that CdSe thin films are of hexagonal structure. After TeO _2 was added, the CdTeSe films were found to have mixed hexagonal and cubic phases. The UV-Vis spectrophotometry results confirmed that the absorbance and band gap of the materials varied as the TeO _2 concentration changed. For AD samples, the energy band gap was found to be (1.45–1.75) eV; for HT samples, it varied from (1.53–1.86) eV with TeO _2 concentration. The average surface roughness was 93.17 nm and 79.59 nm for the AD and HT un-doped CdSe films, respectively. The average surface roughness values for the AD TeO _2 doped (CdTeSe) samples were observed to be 23.00, 162.29, and 26.90 nm, and for the HT samples, they were 25.80, 153.10, and 19.35 nm for TeO _2 -concentrations of 0.075,0.150, and 0.375 mM respectively. Compositional analysis verified the presence of Cd, Te, and Se in the films. The results show that CdSeTe thin films have potential applications in thin-film solar cell device technology. |
| format | Article |
| id | doaj-art-30204b33e31349c99fec1dc5f670ea0b |
| institution | DOAJ |
| issn | 2515-7655 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | IOP Publishing |
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| series | JPhys Energy |
| spelling | doaj-art-30204b33e31349c99fec1dc5f670ea0b2025-08-20T02:45:46ZengIOP PublishingJPhys Energy2515-76552025-01-017202501110.1088/2515-7655/adb64cEffect of Te-concentration on physico-chemical properties electrodeposited CdTeSe thin films for solar cell applicationA U Yimamu0https://orcid.org/0000-0001-7026-4907V N Adoons1https://orcid.org/0000-0002-9527-2652M K Hussen2https://orcid.org/0000-0003-0305-8462S Z Werta3https://orcid.org/0000-0002-1724-1877F B Dejene4https://orcid.org/0000-0002-4474-199XO K Echendu5https://orcid.org/0000-0002-6505-577XJ J Terblans6H C Swart7https://orcid.org/0000-0001-5233-0130S J Motloung8https://orcid.org/0000-0001-8624-5073Department of Physics, University of the Free State , Phuthaditjhaba/ Bloemfontein, South Africa; Department of Physics, Dire Dawa University , Dire Dawa, EthiopiaDepartment of Physics, University of the Free State , Phuthaditjhaba/ Bloemfontein, South AfricaDepartment of Physics, Dire Dawa University , Dire Dawa, EthiopiaDepartment of Physics, Dire Dawa University , Dire Dawa, EthiopiaDepartment of Chemical and Physical, Walter Sisulu University , Mthatha, South AfricaDepartment of Physics, Federal University of Technology , P. M. B. 1526 Owerri, Nigeria; Africa Center of Excellence in Future Energies and Electrochemical Systems (ACE-FUELS), Federal University of Technology , P. M. B. 1526 Owerri, NigeriaDepartment of Physics, University of the Free State , Phuthaditjhaba/ Bloemfontein, South AfricaDepartment of Physics, University of the Free State , Phuthaditjhaba/ Bloemfontein, South AfricaDepartment of Physics, University of the Free State , Phuthaditjhaba/ Bloemfontein, South AfricaElectrodeposition of CdTeSe thin films with two-electrode electrodeposition method in potentiostatic mode was performed at different TeO _2 concentrations of 0.075, 0.150, 0.225, 0.30, and 0.375 mM. The structural, optical, surface morphology, surface roughness, and compositional properties of as-deposited (AD) and annealed (HT) CdTeSe thin film samples were investigated by using x-ray diffraction (XRD), ultraviolet-visible (UV-Vis) spectrophotometry, scanning electron microscopy, scanning probe microscopy and energy-dispersive x-ray spectroscopy, respectively. The XRD results confirmed that CdSe thin films are of hexagonal structure. After TeO _2 was added, the CdTeSe films were found to have mixed hexagonal and cubic phases. The UV-Vis spectrophotometry results confirmed that the absorbance and band gap of the materials varied as the TeO _2 concentration changed. For AD samples, the energy band gap was found to be (1.45–1.75) eV; for HT samples, it varied from (1.53–1.86) eV with TeO _2 concentration. The average surface roughness was 93.17 nm and 79.59 nm for the AD and HT un-doped CdSe films, respectively. The average surface roughness values for the AD TeO _2 doped (CdTeSe) samples were observed to be 23.00, 162.29, and 26.90 nm, and for the HT samples, they were 25.80, 153.10, and 19.35 nm for TeO _2 -concentrations of 0.075,0.150, and 0.375 mM respectively. Compositional analysis verified the presence of Cd, Te, and Se in the films. The results show that CdSeTe thin films have potential applications in thin-film solar cell device technology.https://doi.org/10.1088/2515-7655/adb64cCdSeTeelectrodepositiondopant concentrationtwo–electrode configurationthin film |
| spellingShingle | A U Yimamu V N Adoons M K Hussen S Z Werta F B Dejene O K Echendu J J Terblans H C Swart S J Motloung Effect of Te-concentration on physico-chemical properties electrodeposited CdTeSe thin films for solar cell application JPhys Energy CdSeTe electrodeposition dopant concentration two–electrode configuration thin film |
| title | Effect of Te-concentration on physico-chemical properties electrodeposited CdTeSe thin films for solar cell application |
| title_full | Effect of Te-concentration on physico-chemical properties electrodeposited CdTeSe thin films for solar cell application |
| title_fullStr | Effect of Te-concentration on physico-chemical properties electrodeposited CdTeSe thin films for solar cell application |
| title_full_unstemmed | Effect of Te-concentration on physico-chemical properties electrodeposited CdTeSe thin films for solar cell application |
| title_short | Effect of Te-concentration on physico-chemical properties electrodeposited CdTeSe thin films for solar cell application |
| title_sort | effect of te concentration on physico chemical properties electrodeposited cdtese thin films for solar cell application |
| topic | CdSeTe electrodeposition dopant concentration two–electrode configuration thin film |
| url | https://doi.org/10.1088/2515-7655/adb64c |
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