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Fabrication of Nanostructured Cadmium Selenide Thin Films for Optoelectronics Applications
There is lot of research work at enhancing the performance of energy conversion and energy storage devices such as solar cells, supercapacitors, and batteries. In this regard, the low bandgap and a high absorption coefficient of CdSe thin films in the visible region, as well as, the low electrical r...
Autores principales: | , , , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Frontiers Media S.A.
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8058377/ https://www.ncbi.nlm.nih.gov/pubmed/33898395 http://dx.doi.org/10.3389/fchem.2021.661723 |
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author | Hussain, Shahnwaz Iqbal, Mazhar Khan, Ayaz Arif Khan, Muhammad Nasir Mehboob, Ghazanfar Ajmal, Sohaib Ashfaq, J. M. Mehboob, Gohar Ahmed, M. Shafiq Khisro, Said Nasir Li, Chang-Jiu Chikwenze, Raphael Ezugwu, Sabastine |
author_facet | Hussain, Shahnwaz Iqbal, Mazhar Khan, Ayaz Arif Khan, Muhammad Nasir Mehboob, Ghazanfar Ajmal, Sohaib Ashfaq, J. M. Mehboob, Gohar Ahmed, M. Shafiq Khisro, Said Nasir Li, Chang-Jiu Chikwenze, Raphael Ezugwu, Sabastine |
author_sort | Hussain, Shahnwaz |
collection | PubMed |
description | There is lot of research work at enhancing the performance of energy conversion and energy storage devices such as solar cells, supercapacitors, and batteries. In this regard, the low bandgap and a high absorption coefficient of CdSe thin films in the visible region, as well as, the low electrical resistivity make them ideal for the next generation of chalcogenide-based photovoltaic and electrochemical energy storage devices. Here, we present the properties of CdSe thin films synthesized at temperatures (below 100°C using readily available precursors) that are reproducible, efficient and economical. The samples were characterized using XRD, FTIR, RBS, UV-vis spectroscopy. Annealed samples showed crystalline cubic structure along (111) preferential direction with the grain size of the nanostructures increasing from 2.23 to 4.13 nm with increasing annealing temperatures. The optical properties of the samples indicate a small shift in the bandgap energy, from 2.20 to 2.12 eV with a decreasing deposition temperature. The band gap is suitably located in the visible solar energy region, which make these CdSe thin films ideal for solar energy harvesting. It also has potential to be used in electrochemical energy storage applications. |
format | Online Article Text |
id | pubmed-8058377 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | Frontiers Media S.A. |
record_format | MEDLINE/PubMed |
spelling | pubmed-80583772021-04-22 Fabrication of Nanostructured Cadmium Selenide Thin Films for Optoelectronics Applications Hussain, Shahnwaz Iqbal, Mazhar Khan, Ayaz Arif Khan, Muhammad Nasir Mehboob, Ghazanfar Ajmal, Sohaib Ashfaq, J. M. Mehboob, Gohar Ahmed, M. Shafiq Khisro, Said Nasir Li, Chang-Jiu Chikwenze, Raphael Ezugwu, Sabastine Front Chem Chemistry There is lot of research work at enhancing the performance of energy conversion and energy storage devices such as solar cells, supercapacitors, and batteries. In this regard, the low bandgap and a high absorption coefficient of CdSe thin films in the visible region, as well as, the low electrical resistivity make them ideal for the next generation of chalcogenide-based photovoltaic and electrochemical energy storage devices. Here, we present the properties of CdSe thin films synthesized at temperatures (below 100°C using readily available precursors) that are reproducible, efficient and economical. The samples were characterized using XRD, FTIR, RBS, UV-vis spectroscopy. Annealed samples showed crystalline cubic structure along (111) preferential direction with the grain size of the nanostructures increasing from 2.23 to 4.13 nm with increasing annealing temperatures. The optical properties of the samples indicate a small shift in the bandgap energy, from 2.20 to 2.12 eV with a decreasing deposition temperature. The band gap is suitably located in the visible solar energy region, which make these CdSe thin films ideal for solar energy harvesting. It also has potential to be used in electrochemical energy storage applications. Frontiers Media S.A. 2021-04-07 /pmc/articles/PMC8058377/ /pubmed/33898395 http://dx.doi.org/10.3389/fchem.2021.661723 Text en Copyright © 2021 Hussain, Iqbal, Khan, Khan, Mehboob, Ajmal, Ashfaq, Mehboob, Ahmed, Khisro, Li, Chikwenze and Ezugwu. https://creativecommons.org/licenses/by/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms. |
spellingShingle | Chemistry Hussain, Shahnwaz Iqbal, Mazhar Khan, Ayaz Arif Khan, Muhammad Nasir Mehboob, Ghazanfar Ajmal, Sohaib Ashfaq, J. M. Mehboob, Gohar Ahmed, M. Shafiq Khisro, Said Nasir Li, Chang-Jiu Chikwenze, Raphael Ezugwu, Sabastine Fabrication of Nanostructured Cadmium Selenide Thin Films for Optoelectronics Applications |
title | Fabrication of Nanostructured Cadmium Selenide Thin Films for Optoelectronics Applications |
title_full | Fabrication of Nanostructured Cadmium Selenide Thin Films for Optoelectronics Applications |
title_fullStr | Fabrication of Nanostructured Cadmium Selenide Thin Films for Optoelectronics Applications |
title_full_unstemmed | Fabrication of Nanostructured Cadmium Selenide Thin Films for Optoelectronics Applications |
title_short | Fabrication of Nanostructured Cadmium Selenide Thin Films for Optoelectronics Applications |
title_sort | fabrication of nanostructured cadmium selenide thin films for optoelectronics applications |
topic | Chemistry |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8058377/ https://www.ncbi.nlm.nih.gov/pubmed/33898395 http://dx.doi.org/10.3389/fchem.2021.661723 |
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