Effect of cobalt on the photovoltaic properties of zinc selenide thin film deposited on fluorine-doped tin oxide (FTO) via electrochemical deposition technique
This paper provides a detailed report on the effect of molar concentration on structural, optical and electrical properties of cobalt doped zinc selenide (ZnSe:Co) thin film. The molar concentration Co dopant was varied within 0%, 0.1%, 0.2% and 0.3%. ZnSe:Co was synthesized using the electrodeposit...
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| Format: | Article |
| Language: | English |
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Elsevier
2022-01-01
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| Series: | Current Research in Green and Sustainable Chemistry |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666086522000704 |
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| author | Imosobomeh L. Ikhioya Cyril O. Ugwuoke Donald N. Okoli Azubuike J. Ekpunobi M. Maaza Fabian I. Ezema |
| author_facet | Imosobomeh L. Ikhioya Cyril O. Ugwuoke Donald N. Okoli Azubuike J. Ekpunobi M. Maaza Fabian I. Ezema |
| author_sort | Imosobomeh L. Ikhioya |
| collection | DOAJ |
| description | This paper provides a detailed report on the effect of molar concentration on structural, optical and electrical properties of cobalt doped zinc selenide (ZnSe:Co) thin film. The molar concentration Co dopant was varied within 0%, 0.1%, 0.2% and 0.3%. ZnSe:Co was synthesized using the electrodeposition method. Different characterization techniques such as X-ray diffractometry, scanning electron microscope and four-point probe were used to study the optical, surface morphology and electrical properties of ZnSe:Co. The XRD analysis revealed that both Co-doped and undoped ZnSe are crystalline materials. The crystalline structure of ZnSe is cubic but changes to a face-centred cubic structure upon introduction of Co dopant. ZnSe:Co showed excellent absorbance, optical conductivity and refractive index. The energy bandgap was observed to decrease from 2.2 to 2.0 eV as the molar percentage increased from 0.1 to 0.3%. The conductivity of the cobalt doped Zinc selenide was observed to be 1.4244 × 1011, 1.6655 × 1011, 1.6655 × 1011, and 2.4929 × 1011 (S/m) for film grown with 0%, 0.1%, 0.2% and 0.3% Co dopant respectively. |
| first_indexed | 2024-04-12T01:16:30Z |
| format | Article |
| id | doaj.art-72c9ebec89c84b30a66a789276fa180f |
| institution | Directory Open Access Journal |
| issn | 2666-0865 |
| language | English |
| last_indexed | 2024-04-12T01:16:30Z |
| publishDate | 2022-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Current Research in Green and Sustainable Chemistry |
| spelling | doaj.art-72c9ebec89c84b30a66a789276fa180f2022-12-22T03:53:57ZengElsevierCurrent Research in Green and Sustainable Chemistry2666-08652022-01-015100328Effect of cobalt on the photovoltaic properties of zinc selenide thin film deposited on fluorine-doped tin oxide (FTO) via electrochemical deposition techniqueImosobomeh L. Ikhioya0Cyril O. Ugwuoke1Donald N. Okoli2Azubuike J. Ekpunobi3M. Maaza4Fabian I. Ezema5Department of Physics and Astronomy, University of Nigeria, Nsukka, 410001, Enugu State, NigeriaDepartment of Physics and Astronomy, University of Nigeria, Nsukka, 410001, Enugu State, Nigeria; Science and Engineering Unit, Nigerian Young Researchers Academy, 430231, Onitsha, Anambra State, Nigeria; Corresponding author. Department of Physics and Astronomy, University of Nigeria, Nsukka, 410001, Enugu State, Nigeria.Department of Physics and Industrial Physics, Faculty of Physical Sciences, Nnamdi Azikiwe University, Awka, Anambra State, NigeriaDepartment of Physics and Industrial Physics, Faculty of Physical Sciences, Nnamdi Azikiwe University, Awka, Anambra State, NigeriaNanosciences African Network (NANOAFNET) iThemba LABS-National Research Foundation, 1 Old Faure Road, Somerset West 7129, P.O. Box 722, Somerset West, Western Cape Province, South Africa; UNESCO-UNISA Africa Chair in Nanosciences/Nanotechnology, College of Graduate Studies, University of South Africa (UNISA), Muckleneuk Ridge, P.O. Box 392, Pretoria, South AfricaDepartment of Physics and Astronomy, University of Nigeria, Nsukka, 410001, Enugu State, Nigeria; Nanosciences African Network (NANOAFNET) iThemba LABS-National Research Foundation, 1 Old Faure Road, Somerset West 7129, P.O. Box 722, Somerset West, Western Cape Province, South Africa; UNESCO-UNISA Africa Chair in Nanosciences/Nanotechnology, College of Graduate Studies, University of South Africa (UNISA), Muckleneuk Ridge, P.O. Box 392, Pretoria, South Africa; Africa Centre of Excellence for Sustainable Power and Energy Development (ACE-SPED), University of Nigeria, Nsukka, NigeriaThis paper provides a detailed report on the effect of molar concentration on structural, optical and electrical properties of cobalt doped zinc selenide (ZnSe:Co) thin film. The molar concentration Co dopant was varied within 0%, 0.1%, 0.2% and 0.3%. ZnSe:Co was synthesized using the electrodeposition method. Different characterization techniques such as X-ray diffractometry, scanning electron microscope and four-point probe were used to study the optical, surface morphology and electrical properties of ZnSe:Co. The XRD analysis revealed that both Co-doped and undoped ZnSe are crystalline materials. The crystalline structure of ZnSe is cubic but changes to a face-centred cubic structure upon introduction of Co dopant. ZnSe:Co showed excellent absorbance, optical conductivity and refractive index. The energy bandgap was observed to decrease from 2.2 to 2.0 eV as the molar percentage increased from 0.1 to 0.3%. The conductivity of the cobalt doped Zinc selenide was observed to be 1.4244 × 1011, 1.6655 × 1011, 1.6655 × 1011, and 2.4929 × 1011 (S/m) for film grown with 0%, 0.1%, 0.2% and 0.3% Co dopant respectively.http://www.sciencedirect.com/science/article/pii/S2666086522000704Molar concentrationElectrochemicalDopingDepositionDielectricElectrical |
| spellingShingle | Imosobomeh L. Ikhioya Cyril O. Ugwuoke Donald N. Okoli Azubuike J. Ekpunobi M. Maaza Fabian I. Ezema Effect of cobalt on the photovoltaic properties of zinc selenide thin film deposited on fluorine-doped tin oxide (FTO) via electrochemical deposition technique Current Research in Green and Sustainable Chemistry Molar concentration Electrochemical Doping Deposition Dielectric Electrical |
| title | Effect of cobalt on the photovoltaic properties of zinc selenide thin film deposited on fluorine-doped tin oxide (FTO) via electrochemical deposition technique |
| title_full | Effect of cobalt on the photovoltaic properties of zinc selenide thin film deposited on fluorine-doped tin oxide (FTO) via electrochemical deposition technique |
| title_fullStr | Effect of cobalt on the photovoltaic properties of zinc selenide thin film deposited on fluorine-doped tin oxide (FTO) via electrochemical deposition technique |
| title_full_unstemmed | Effect of cobalt on the photovoltaic properties of zinc selenide thin film deposited on fluorine-doped tin oxide (FTO) via electrochemical deposition technique |
| title_short | Effect of cobalt on the photovoltaic properties of zinc selenide thin film deposited on fluorine-doped tin oxide (FTO) via electrochemical deposition technique |
| title_sort | effect of cobalt on the photovoltaic properties of zinc selenide thin film deposited on fluorine doped tin oxide fto via electrochemical deposition technique |
| topic | Molar concentration Electrochemical Doping Deposition Dielectric Electrical |
| url | http://www.sciencedirect.com/science/article/pii/S2666086522000704 |
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