Suppressing photoluminescence and enhancing light absorption of TiO2 via using TiO2/TiN/TiO2 plasmonic multilayers for better solar harvesting
In this work, TiO2/TiN/TiO2 multilayer nanostructured films are prepared for coupling the plasmonic characteristics of TiN with the semiconducting characteristics of TiO2. X-ray examinations revealed the existence of mixed tetragonal crystalline phases of anatase and rutile TiO2. Small and uniformly...
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| Format: | Article |
| Language: | English |
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Elsevier
2022-05-01
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| Series: | Journal of Materials Research and Technology |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785422006329 |
| _version_ | 1828351048703541248 |
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| author | S.H. Mohamed Ali A. Alhazime |
| author_facet | S.H. Mohamed Ali A. Alhazime |
| author_sort | S.H. Mohamed |
| collection | DOAJ |
| description | In this work, TiO2/TiN/TiO2 multilayer nanostructured films are prepared for coupling the plasmonic characteristics of TiN with the semiconducting characteristics of TiO2. X-ray examinations revealed the existence of mixed tetragonal crystalline phases of anatase and rutile TiO2. Small and uniformly distributed grains with grain sizes ranged from 5 to 9 nm were observed from scanning electron microscopy investigations. The electrical conductivity of the nanostructured multilayer films increased monotonically with increasing TiN layer thickness. Five-phase Si(substrate)/TiO2/TiN/TiO2/air model was employed to fit the simulated data to the experimental spectroscopic ellipsometer spectra. The refractive index and the real part of the dielectric constant were generally decreased with increasing TiN thickness. The absorption was enhanced over the wavelengths from 650 to 1350 nm, in which traditional silicon solar cells display a weak achievement, with increasing TiN layer thickness. The optical band gap values were decreased from 3.32 eV to 3.01 eV with increasing TiN layer thickness from 2.9 nm to 32.1 nm. Severe quenching in the photoluminescence intensity was observed with increasing TiN layer thickness. This study showed TiO2/TiN/TiO2 multilayer films with enhanced plasmonic characteristics, enhanced absorbance and quenched photoluminescence which can be used to enhance their potential applications in solar energy harvesting. |
| first_indexed | 2024-04-14T01:34:46Z |
| format | Article |
| id | doaj.art-6c7600d94abf4266a1ce689a125e7777 |
| institution | Directory Open Access Journal |
| issn | 2238-7854 |
| language | English |
| last_indexed | 2024-04-14T01:34:46Z |
| publishDate | 2022-05-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj.art-6c7600d94abf4266a1ce689a125e77772022-12-22T02:20:02ZengElsevierJournal of Materials Research and Technology2238-78542022-05-011844704478Suppressing photoluminescence and enhancing light absorption of TiO2 via using TiO2/TiN/TiO2 plasmonic multilayers for better solar harvestingS.H. Mohamed0Ali A. Alhazime1Department of Physics, Faculty of Science, Islamic University of Madinah, Prince Naifbin Abdulaziz, Al Jamiah, Madinah 42351, Kingdom of Saudi Arabia; Corresponding author.Physics Department, College of Science, Taibah University, Medina 41411, Kingdom of Saudi ArabiaIn this work, TiO2/TiN/TiO2 multilayer nanostructured films are prepared for coupling the plasmonic characteristics of TiN with the semiconducting characteristics of TiO2. X-ray examinations revealed the existence of mixed tetragonal crystalline phases of anatase and rutile TiO2. Small and uniformly distributed grains with grain sizes ranged from 5 to 9 nm were observed from scanning electron microscopy investigations. The electrical conductivity of the nanostructured multilayer films increased monotonically with increasing TiN layer thickness. Five-phase Si(substrate)/TiO2/TiN/TiO2/air model was employed to fit the simulated data to the experimental spectroscopic ellipsometer spectra. The refractive index and the real part of the dielectric constant were generally decreased with increasing TiN thickness. The absorption was enhanced over the wavelengths from 650 to 1350 nm, in which traditional silicon solar cells display a weak achievement, with increasing TiN layer thickness. The optical band gap values were decreased from 3.32 eV to 3.01 eV with increasing TiN layer thickness from 2.9 nm to 32.1 nm. Severe quenching in the photoluminescence intensity was observed with increasing TiN layer thickness. This study showed TiO2/TiN/TiO2 multilayer films with enhanced plasmonic characteristics, enhanced absorbance and quenched photoluminescence which can be used to enhance their potential applications in solar energy harvesting.http://www.sciencedirect.com/science/article/pii/S2238785422006329TiO2/TiN/TiO2 multilayer nanostructured filmsEllipsometer spectraPlasmonicPhotoluminescence |
| spellingShingle | S.H. Mohamed Ali A. Alhazime Suppressing photoluminescence and enhancing light absorption of TiO2 via using TiO2/TiN/TiO2 plasmonic multilayers for better solar harvesting Journal of Materials Research and Technology TiO2/TiN/TiO2 multilayer nanostructured films Ellipsometer spectra Plasmonic Photoluminescence |
| title | Suppressing photoluminescence and enhancing light absorption of TiO2 via using TiO2/TiN/TiO2 plasmonic multilayers for better solar harvesting |
| title_full | Suppressing photoluminescence and enhancing light absorption of TiO2 via using TiO2/TiN/TiO2 plasmonic multilayers for better solar harvesting |
| title_fullStr | Suppressing photoluminescence and enhancing light absorption of TiO2 via using TiO2/TiN/TiO2 plasmonic multilayers for better solar harvesting |
| title_full_unstemmed | Suppressing photoluminescence and enhancing light absorption of TiO2 via using TiO2/TiN/TiO2 plasmonic multilayers for better solar harvesting |
| title_short | Suppressing photoluminescence and enhancing light absorption of TiO2 via using TiO2/TiN/TiO2 plasmonic multilayers for better solar harvesting |
| title_sort | suppressing photoluminescence and enhancing light absorption of tio2 via using tio2 tin tio2 plasmonic multilayers for better solar harvesting |
| topic | TiO2/TiN/TiO2 multilayer nanostructured films Ellipsometer spectra Plasmonic Photoluminescence |
| url | http://www.sciencedirect.com/science/article/pii/S2238785422006329 |
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