Optical properties of lithium borate glass (Li2O)x (B2O3)1-x
A series of (Li2O)x(B2O3)1-x has been synthesized with mole fraction x=0.10, 0.15,0.20,0.25 and 0.30 mol% using melt quenching method. The structure of the glass system was determined by FTIR and X-ray diffraction. The density and molar volume were determined and the density increases with Li2O cont...
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| Format: | Article |
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Universiti Kebangsaan Malaysia
2014
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| Online Access: | http://psasir.upm.edu.my/id/eprint/34756/ |
| _version_ | 1848847862761259008 |
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| author | Mohamed Kamari, Halimah Chiew, W. H. Abd. Aziz, Sidek Wan Yusoff, Wan Mohamad Daud Abd. Wahab, Zaidan Matori, Khamirul Amin Mustafa, Iskandar Shahrim |
| author_facet | Mohamed Kamari, Halimah Chiew, W. H. Abd. Aziz, Sidek Wan Yusoff, Wan Mohamad Daud Abd. Wahab, Zaidan Matori, Khamirul Amin Mustafa, Iskandar Shahrim |
| author_sort | Mohamed Kamari, Halimah |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | A series of (Li2O)x(B2O3)1-x has been synthesized with mole fraction x=0.10, 0.15,0.20,0.25 and 0.30 mol% using melt quenching method. The structure of the glass system was determined by FTIR and X-ray diffraction. The density and molar volume were determined and the density increases with Li2O content whereas molar volume decreases with Li2O. Refractive index of glass samples were measured by ellipsometer. Refractive index increases with increase of Li2O. The absorption spectra of the studied glass showed that position of fundamental absorption edge shifts to longer wavelength with Li2O. Optical band gap varies from 0.10 to 2.22 eV and Urbach energy varies from 2.91 to 1.55 eV. The variation in optical band gap and Urbach energy were due to the variation in the glass structure.
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| first_indexed | 2025-11-15T09:25:21Z |
| format | Article |
| id | upm-34756 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-15T09:25:21Z |
| publishDate | 2014 |
| publisher | Universiti Kebangsaan Malaysia |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-347562016-01-19T05:14:22Z http://psasir.upm.edu.my/id/eprint/34756/ Optical properties of lithium borate glass (Li2O)x (B2O3)1-x Mohamed Kamari, Halimah Chiew, W. H. Abd. Aziz, Sidek Wan Yusoff, Wan Mohamad Daud Abd. Wahab, Zaidan Matori, Khamirul Amin Mustafa, Iskandar Shahrim A series of (Li2O)x(B2O3)1-x has been synthesized with mole fraction x=0.10, 0.15,0.20,0.25 and 0.30 mol% using melt quenching method. The structure of the glass system was determined by FTIR and X-ray diffraction. The density and molar volume were determined and the density increases with Li2O content whereas molar volume decreases with Li2O. Refractive index of glass samples were measured by ellipsometer. Refractive index increases with increase of Li2O. The absorption spectra of the studied glass showed that position of fundamental absorption edge shifts to longer wavelength with Li2O. Optical band gap varies from 0.10 to 2.22 eV and Urbach energy varies from 2.91 to 1.55 eV. The variation in optical band gap and Urbach energy were due to the variation in the glass structure. Universiti Kebangsaan Malaysia 2014-06 Article PeerReviewed Mohamed Kamari, Halimah and Chiew, W. H. and Abd. Aziz, Sidek and Wan Yusoff, Wan Mohamad Daud and Abd. Wahab, Zaidan and Matori, Khamirul Amin and Mustafa, Iskandar Shahrim (2014) Optical properties of lithium borate glass (Li2O)x (B2O3)1-x. Sains Malaysiana, 43 (6). pp. 899-902. ISSN 0026-6039 http://www.ukm.my/jsm/english_journals/vol43num6_2014/contentsVol43num6_2014.html |
| spellingShingle | Mohamed Kamari, Halimah Chiew, W. H. Abd. Aziz, Sidek Wan Yusoff, Wan Mohamad Daud Abd. Wahab, Zaidan Matori, Khamirul Amin Mustafa, Iskandar Shahrim Optical properties of lithium borate glass (Li2O)x (B2O3)1-x |
| title | Optical properties of lithium borate glass (Li2O)x (B2O3)1-x |
| title_full | Optical properties of lithium borate glass (Li2O)x (B2O3)1-x |
| title_fullStr | Optical properties of lithium borate glass (Li2O)x (B2O3)1-x |
| title_full_unstemmed | Optical properties of lithium borate glass (Li2O)x (B2O3)1-x |
| title_short | Optical properties of lithium borate glass (Li2O)x (B2O3)1-x |
| title_sort | optical properties of lithium borate glass (li2o)x (b2o3)1-x |
| url | http://psasir.upm.edu.my/id/eprint/34756/ http://psasir.upm.edu.my/id/eprint/34756/ |