Effect of erbium nanoparticles on structural and spectroscopic properties of bio-silica borotellurite glasses containing silver oxide
Er3+ NPs doped bio-silica borotellurite glasses containing silver oxide were prepared using melt quenching techniques. The silica used was extracted from rice husk by acid leaching process. Optical absorption and photoluminescence properties of the glass samples were studied. The samples were confir...
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| Format: | Article |
| Language: | English |
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Elsevier
2019
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| Online Access: | http://psasir.upm.edu.my/id/eprint/79504/ http://psasir.upm.edu.my/id/eprint/79504/1/Effect%20of%20erbium%20nanoparticles%20on%20structural%20and%20spectroscopic%20properties%20of%20bio-silica%20borotellurite%20glasses%20containing%20silver%20oxide.pdf |
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| author | Mohamed Kamari, Halimah Hamza, Abdulkarim Muhammad Muhammad, Farah Diana Chan, Kar Tim Aliyu, Umar Saad Ibrahim, Umar Geidam, Ibrahim Gana |
| author_facet | Mohamed Kamari, Halimah Hamza, Abdulkarim Muhammad Muhammad, Farah Diana Chan, Kar Tim Aliyu, Umar Saad Ibrahim, Umar Geidam, Ibrahim Gana |
| author_sort | Mohamed Kamari, Halimah |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | Er3+ NPs doped bio-silica borotellurite glasses containing silver oxide were prepared using melt quenching techniques. The silica used was extracted from rice husk by acid leaching process. Optical absorption and photoluminescence properties of the glass samples were studied. The samples were confirmed to be amorphous in nature from the XRD results. The FTIR results reveal the existing functional groups in the glass structure. XRF result shows that 98.6% silica was obtained from the rice husk. The optical absorption spectra revealed that fundamental absorption edge shifts to longer wavelength as the content of erbium NPs increases. The value of band gap had been calculated and shown to be increased with an increase content of erbium NPs. The Urbach energy was shown to be linearly decreased with an increase in content of erbium NPs oxides. The introduction of silver oxides modifies the optical properties of the glass. The emission cross-section (δe) and gain bandwidth (FWHM ×δe) for 4I13/2→4I15/2 transition were calculated from the McCumber theory. The photoluminescence spectra revealed three emission bands corresponding to 4H11/2-4I15/2 (470 nm), 4S3/2-4I15/2 (561 nm) and 4F9/2→4I15/2 (758 nm) transitions assigned to green and red emissions respectively. The results suggest that these glasses might be used as a promising candidate as well as gain media for solid state lasers. |
| first_indexed | 2025-11-15T12:17:33Z |
| format | Article |
| id | upm-79504 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T12:17:33Z |
| publishDate | 2019 |
| publisher | Elsevier |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-795042021-05-28T23:03:28Z http://psasir.upm.edu.my/id/eprint/79504/ Effect of erbium nanoparticles on structural and spectroscopic properties of bio-silica borotellurite glasses containing silver oxide Mohamed Kamari, Halimah Hamza, Abdulkarim Muhammad Muhammad, Farah Diana Chan, Kar Tim Aliyu, Umar Saad Ibrahim, Umar Geidam, Ibrahim Gana Er3+ NPs doped bio-silica borotellurite glasses containing silver oxide were prepared using melt quenching techniques. The silica used was extracted from rice husk by acid leaching process. Optical absorption and photoluminescence properties of the glass samples were studied. The samples were confirmed to be amorphous in nature from the XRD results. The FTIR results reveal the existing functional groups in the glass structure. XRF result shows that 98.6% silica was obtained from the rice husk. The optical absorption spectra revealed that fundamental absorption edge shifts to longer wavelength as the content of erbium NPs increases. The value of band gap had been calculated and shown to be increased with an increase content of erbium NPs. The Urbach energy was shown to be linearly decreased with an increase in content of erbium NPs oxides. The introduction of silver oxides modifies the optical properties of the glass. The emission cross-section (δe) and gain bandwidth (FWHM ×δe) for 4I13/2→4I15/2 transition were calculated from the McCumber theory. The photoluminescence spectra revealed three emission bands corresponding to 4H11/2-4I15/2 (470 nm), 4S3/2-4I15/2 (561 nm) and 4F9/2→4I15/2 (758 nm) transitions assigned to green and red emissions respectively. The results suggest that these glasses might be used as a promising candidate as well as gain media for solid state lasers. Elsevier 2019-10 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/79504/1/Effect%20of%20erbium%20nanoparticles%20on%20structural%20and%20spectroscopic%20properties%20of%20bio-silica%20borotellurite%20glasses%20containing%20silver%20oxide.pdf Mohamed Kamari, Halimah and Hamza, Abdulkarim Muhammad and Muhammad, Farah Diana and Chan, Kar Tim and Aliyu, Umar Saad and Ibrahim, Umar and Geidam, Ibrahim Gana (2019) Effect of erbium nanoparticles on structural and spectroscopic properties of bio-silica borotellurite glasses containing silver oxide. Materials Chemistry and Physics, 236. ISSN 0254-0584 https://www.sciencedirect.com/science/article/abs/pii/S0254058419305929 10.1016/j.matchemphys.2019.121795 |
| spellingShingle | Mohamed Kamari, Halimah Hamza, Abdulkarim Muhammad Muhammad, Farah Diana Chan, Kar Tim Aliyu, Umar Saad Ibrahim, Umar Geidam, Ibrahim Gana Effect of erbium nanoparticles on structural and spectroscopic properties of bio-silica borotellurite glasses containing silver oxide |
| title | Effect of erbium nanoparticles on structural and spectroscopic properties of bio-silica borotellurite glasses containing silver oxide |
| title_full | Effect of erbium nanoparticles on structural and spectroscopic properties of bio-silica borotellurite glasses containing silver oxide |
| title_fullStr | Effect of erbium nanoparticles on structural and spectroscopic properties of bio-silica borotellurite glasses containing silver oxide |
| title_full_unstemmed | Effect of erbium nanoparticles on structural and spectroscopic properties of bio-silica borotellurite glasses containing silver oxide |
| title_short | Effect of erbium nanoparticles on structural and spectroscopic properties of bio-silica borotellurite glasses containing silver oxide |
| title_sort | effect of erbium nanoparticles on structural and spectroscopic properties of bio-silica borotellurite glasses containing silver oxide |
| url | http://psasir.upm.edu.my/id/eprint/79504/ http://psasir.upm.edu.my/id/eprint/79504/ http://psasir.upm.edu.my/id/eprint/79504/ http://psasir.upm.edu.my/id/eprint/79504/1/Effect%20of%20erbium%20nanoparticles%20on%20structural%20and%20spectroscopic%20properties%20of%20bio-silica%20borotellurite%20glasses%20containing%20silver%20oxide.pdf |