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Improvements in the Performance of a Visible–NIR Photodetector Using Horizontally Aligned TiS(3) Nanoribbons
[Image: see text] We report the fabrication and characterization of visible and near-infrared-resistive photodetector using horizontally aligned titanium tri sulfide (TiS(3)) nanoribbons. The fabrication process employed micro-electromechanical system, photolithography and dielectrophoretic (DEP) me...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
American Chemical Society
2019
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6648021/ https://www.ncbi.nlm.nih.gov/pubmed/31459763 http://dx.doi.org/10.1021/acsomega.8b03067 |
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author | Talib, Mohammad Tabassum, Rana Abid, Islam, Saikh Safiul Mishra, Prabhash |
author_facet | Talib, Mohammad Tabassum, Rana Abid, Islam, Saikh Safiul Mishra, Prabhash |
author_sort | Talib, Mohammad |
collection | PubMed |
description | [Image: see text] We report the fabrication and characterization of visible and near-infrared-resistive photodetector using horizontally aligned titanium tri sulfide (TiS(3)) nanoribbons. The fabrication process employed micro-electromechanical system, photolithography and dielectrophoretic (DEP) methods. The interdigitated electrodes (IDE) fingers were fabricated using photolithography and thin-film metallization techniques onto the Si/SiO(2) substrate, and then TiS(3) nanoribbons were horizontally aligned in between IDE using DEP. The fabricated device was first characterized in absence of light and then, the photodetector-based characteristics were obtained by illuminating it with fiber-coupled laser beam. These characteristics were optimized by varying wavelength and power density of the laser beam. The present photodetector shows a maximum responsivity of 5.22 × 10(2) A/W, quantum efficiency of 6.08 × 10(2), and detectivity of 1.69 × 10(9) Jones. The switching times, i.e., response and recovery times were found to be 1.53 and 0.74 s, respectively, with 1064 nm wavelength and 3.4 mW/mm(2) power density of the laser beam. Also, the effect of O(2) adsorption on nanoribbons has been studied and it is found that adsorbed O(2) acts as electron acceptor and decreases the conductivity of the photodetector. Experimentally, it is found that the photoresponse of the horizontally aligned TiS(3) nanoribbons is better than that of a randomly oriented TiS(3) nanoribbon-based photodetector. Finally, the performance of the present photodetector was compared to that of the previous ones that were found to outperform the reported ones. The additional advantages of the photodetector include excellent stability and portability from which it may be concluded that TiS(3) nanoribbons can be a promising candidate for application in nanoscale electronic and optoelectronic devices. |
format | Online Article Text |
id | pubmed-6648021 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | American Chemical Society |
record_format | MEDLINE/PubMed |
spelling | pubmed-66480212019-08-27 Improvements in the Performance of a Visible–NIR Photodetector Using Horizontally Aligned TiS(3) Nanoribbons Talib, Mohammad Tabassum, Rana Abid, Islam, Saikh Safiul Mishra, Prabhash ACS Omega [Image: see text] We report the fabrication and characterization of visible and near-infrared-resistive photodetector using horizontally aligned titanium tri sulfide (TiS(3)) nanoribbons. The fabrication process employed micro-electromechanical system, photolithography and dielectrophoretic (DEP) methods. The interdigitated electrodes (IDE) fingers were fabricated using photolithography and thin-film metallization techniques onto the Si/SiO(2) substrate, and then TiS(3) nanoribbons were horizontally aligned in between IDE using DEP. The fabricated device was first characterized in absence of light and then, the photodetector-based characteristics were obtained by illuminating it with fiber-coupled laser beam. These characteristics were optimized by varying wavelength and power density of the laser beam. The present photodetector shows a maximum responsivity of 5.22 × 10(2) A/W, quantum efficiency of 6.08 × 10(2), and detectivity of 1.69 × 10(9) Jones. The switching times, i.e., response and recovery times were found to be 1.53 and 0.74 s, respectively, with 1064 nm wavelength and 3.4 mW/mm(2) power density of the laser beam. Also, the effect of O(2) adsorption on nanoribbons has been studied and it is found that adsorbed O(2) acts as electron acceptor and decreases the conductivity of the photodetector. Experimentally, it is found that the photoresponse of the horizontally aligned TiS(3) nanoribbons is better than that of a randomly oriented TiS(3) nanoribbon-based photodetector. Finally, the performance of the present photodetector was compared to that of the previous ones that were found to outperform the reported ones. The additional advantages of the photodetector include excellent stability and portability from which it may be concluded that TiS(3) nanoribbons can be a promising candidate for application in nanoscale electronic and optoelectronic devices. American Chemical Society 2019-04-02 /pmc/articles/PMC6648021/ /pubmed/31459763 http://dx.doi.org/10.1021/acsomega.8b03067 Text en Copyright © 2019 American Chemical Society This is an open access article published under an ACS AuthorChoice License (http://pubs.acs.org/page/policy/authorchoice_termsofuse.html) , which permits copying and redistribution of the article or any adaptations for non-commercial purposes. |
spellingShingle | Talib, Mohammad Tabassum, Rana Abid, Islam, Saikh Safiul Mishra, Prabhash Improvements in the Performance of a Visible–NIR Photodetector Using Horizontally Aligned TiS(3) Nanoribbons |
title | Improvements in the Performance of a Visible–NIR
Photodetector Using Horizontally Aligned TiS(3) Nanoribbons |
title_full | Improvements in the Performance of a Visible–NIR
Photodetector Using Horizontally Aligned TiS(3) Nanoribbons |
title_fullStr | Improvements in the Performance of a Visible–NIR
Photodetector Using Horizontally Aligned TiS(3) Nanoribbons |
title_full_unstemmed | Improvements in the Performance of a Visible–NIR
Photodetector Using Horizontally Aligned TiS(3) Nanoribbons |
title_short | Improvements in the Performance of a Visible–NIR
Photodetector Using Horizontally Aligned TiS(3) Nanoribbons |
title_sort | improvements in the performance of a visible–nir
photodetector using horizontally aligned tis(3) nanoribbons |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6648021/ https://www.ncbi.nlm.nih.gov/pubmed/31459763 http://dx.doi.org/10.1021/acsomega.8b03067 |
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