Structural and optical properties of zinc borotellurite glass co-doped with lanthanum and silver oxide
A series of zinc borotellurite glass co-doped with lanthanum and silver oxide with the chemical formula of [{[(TeO2)0.7(B2O3)0.3]0.7(ZnO)0.3}0.96(La2O3)0.04]1-x(Ag2O)x where the molar frac-tion of silver oxide, x = 0.02, 0.04, 0.06, 0.08 and 0.10 had been successfully prepared via the conventional m...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Scientific Research Publishing
2018
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| Online Access: | http://psasir.upm.edu.my/id/eprint/73983/ http://psasir.upm.edu.my/id/eprint/73983/1/Structural%20and%20optical%20properties%20of%20zinc%20borotellurite%20glass%20co-doped%20with%20lanthanum%20and%20silver%20oxide.pdf |
| _version_ | 1848857409669300224 |
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| author | Mohd Fudzi, Faznny Mohamed Kamari, Halimah Muhammad, Farah Diana Abd Latif, Amirah Ismail, Zaitizila |
| author_facet | Mohd Fudzi, Faznny Mohamed Kamari, Halimah Muhammad, Farah Diana Abd Latif, Amirah Ismail, Zaitizila |
| author_sort | Mohd Fudzi, Faznny |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | A series of zinc borotellurite glass co-doped with lanthanum and silver oxide with the chemical formula of [{[(TeO2)0.7(B2O3)0.3]0.7(ZnO)0.3}0.96(La2O3)0.04]1-x(Ag2O)x where the molar frac-tion of silver oxide, x = 0.02, 0.04, 0.06, 0.08 and 0.10 had been successfully prepared via the conventional melt-quenching technique. The structural properties of the glasses were unveiled through X-ray Diffraction (XRD) and Fourier Transform Infra-Red (FTIR) spectroscopy while optical properties of the glasses were investigated with Ultra Violet Visible (UV-Vis) spectropho-toscopy. The short range periodic atomic arrangement in the glass matrix that implies the amorphous nature of the glass was confirmed with the presence of a broad hump in the XRD pattern. On the other hand, the three absorption bands observable in the FTIR spectra had proven the existence of BO4, BO3 as well as TeO4 units in the glass network. The absorbance values retrieved from UV-Vis spectroscopy were utilized to calculate the indirect energy band gap and Urbach energy values of the fabricated glass. By employing the equations proposed by Mott and Davis, the obtained indirect energy band gap have val-ues ranging from 2.16 to 4.16 eV.The decreasing trend in indirect energy band gap and increasing Urbach energy values were related to the increasing num-ber of nonbridging oxygen (NBO) in the glass that is created from the breaking of Te-O-Te or B-O-B bonds after lanthanum as well as silver oxide are incor-porated into the zinc borotellurite glass network. |
| first_indexed | 2025-11-15T11:57:06Z |
| format | Article |
| id | upm-73983 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T11:57:06Z |
| publishDate | 2018 |
| publisher | Scientific Research Publishing |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-739832020-04-28T22:49:51Z http://psasir.upm.edu.my/id/eprint/73983/ Structural and optical properties of zinc borotellurite glass co-doped with lanthanum and silver oxide Mohd Fudzi, Faznny Mohamed Kamari, Halimah Muhammad, Farah Diana Abd Latif, Amirah Ismail, Zaitizila A series of zinc borotellurite glass co-doped with lanthanum and silver oxide with the chemical formula of [{[(TeO2)0.7(B2O3)0.3]0.7(ZnO)0.3}0.96(La2O3)0.04]1-x(Ag2O)x where the molar frac-tion of silver oxide, x = 0.02, 0.04, 0.06, 0.08 and 0.10 had been successfully prepared via the conventional melt-quenching technique. The structural properties of the glasses were unveiled through X-ray Diffraction (XRD) and Fourier Transform Infra-Red (FTIR) spectroscopy while optical properties of the glasses were investigated with Ultra Violet Visible (UV-Vis) spectropho-toscopy. The short range periodic atomic arrangement in the glass matrix that implies the amorphous nature of the glass was confirmed with the presence of a broad hump in the XRD pattern. On the other hand, the three absorption bands observable in the FTIR spectra had proven the existence of BO4, BO3 as well as TeO4 units in the glass network. The absorbance values retrieved from UV-Vis spectroscopy were utilized to calculate the indirect energy band gap and Urbach energy values of the fabricated glass. By employing the equations proposed by Mott and Davis, the obtained indirect energy band gap have val-ues ranging from 2.16 to 4.16 eV.The decreasing trend in indirect energy band gap and increasing Urbach energy values were related to the increasing num-ber of nonbridging oxygen (NBO) in the glass that is created from the breaking of Te-O-Te or B-O-B bonds after lanthanum as well as silver oxide are incor-porated into the zinc borotellurite glass network. Scientific Research Publishing 2018 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/73983/1/Structural%20and%20optical%20properties%20of%20zinc%20borotellurite%20glass%20co-doped%20with%20lanthanum%20and%20silver%20oxide.pdf Mohd Fudzi, Faznny and Mohamed Kamari, Halimah and Muhammad, Farah Diana and Abd Latif, Amirah and Ismail, Zaitizila (2018) Structural and optical properties of zinc borotellurite glass co-doped with lanthanum and silver oxide. Journal of Materials Sceince and Chemical Engineering, 6. 18 - 23. ISSN 2327-6045; ESSN: 2327-6053 https://www.scirp.org/journal/paperinformation.aspx?paperid=83658 10.4236/msce.2018.64003 |
| spellingShingle | Mohd Fudzi, Faznny Mohamed Kamari, Halimah Muhammad, Farah Diana Abd Latif, Amirah Ismail, Zaitizila Structural and optical properties of zinc borotellurite glass co-doped with lanthanum and silver oxide |
| title | Structural and optical properties of zinc borotellurite glass co-doped with lanthanum and silver oxide |
| title_full | Structural and optical properties of zinc borotellurite glass co-doped with lanthanum and silver oxide |
| title_fullStr | Structural and optical properties of zinc borotellurite glass co-doped with lanthanum and silver oxide |
| title_full_unstemmed | Structural and optical properties of zinc borotellurite glass co-doped with lanthanum and silver oxide |
| title_short | Structural and optical properties of zinc borotellurite glass co-doped with lanthanum and silver oxide |
| title_sort | structural and optical properties of zinc borotellurite glass co-doped with lanthanum and silver oxide |
| url | http://psasir.upm.edu.my/id/eprint/73983/ http://psasir.upm.edu.my/id/eprint/73983/ http://psasir.upm.edu.my/id/eprint/73983/ http://psasir.upm.edu.my/id/eprint/73983/1/Structural%20and%20optical%20properties%20of%20zinc%20borotellurite%20glass%20co-doped%20with%20lanthanum%20and%20silver%20oxide.pdf |