Photopyroelectric spectroscopy of Sb2O3 - ZnO ceramics
Photopyroelectric spectroscopy is used to study the band-gap energy of the ceramic (ZnO + xSb2O3), x = 0.1 - 1.5 mol% and the ceramic (ZnO + 0.4 mol% Bi2O3 + xSb2O3), x = 0 - 1.5 mol% sintered at isothermal temperature, 1280 °C, for 1 and 2 hours. The wavelength of incident light, modulated at 9 Hz...
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| Format: | Article |
| Language: | English |
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EDP Sciences, Springer Verlag
2008
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| Online Access: | http://psasir.upm.edu.my/id/eprint/6551/ http://psasir.upm.edu.my/id/eprint/6551/1/Photopyroelectric%20spectroscopy%20of%20Sb2O3.pdf |
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| author | Zakaria, Azmi Rizwan, Zahid Hashim, Mansor Shaari, Abdul Halim Mat Yunus, Wan Mahmood |
| author_facet | Zakaria, Azmi Rizwan, Zahid Hashim, Mansor Shaari, Abdul Halim Mat Yunus, Wan Mahmood |
| author_sort | Zakaria, Azmi |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | Photopyroelectric spectroscopy is used to study the band-gap energy of the ceramic (ZnO + xSb2O3), x = 0.1 - 1.5 mol% and the ceramic (ZnO + 0.4 mol% Bi2O3 + xSb2O3), x = 0 - 1.5 mol% sintered at isothermal temperature, 1280 °C, for 1 and 2 hours. The wavelength of incident light, modulated at 9 Hz, is kept in the visible range and the photopyroelectric spectrum with reference to doping level is discussed. The band-gap energy is reduced from 3.2 eV, for pure ZnO, to 2.86, 2.83 eV for the samples without Bi2O3at 0.1 mol% of Sb2O3 for 1 and 2 hours of sintering time, respectively. It is reduced to 2.83, 2.80 eV for the samples with Bi2O3 at 0 mol% of Sb2O3 for 1 and 2 hours of sintering time, respectively. The steepness factor σA which characterizes the slop of exponential optical absorption is discussed with reference to the doping level. The phase constitution is determined by XRD analysis; microstructure and compositional analysis of the selected areas are analyzed using SEM and EDX. |
| first_indexed | 2025-11-15T07:26:53Z |
| format | Article |
| id | upm-6551 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T07:26:53Z |
| publishDate | 2008 |
| publisher | EDP Sciences, Springer Verlag |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-65512018-10-22T08:18:33Z http://psasir.upm.edu.my/id/eprint/6551/ Photopyroelectric spectroscopy of Sb2O3 - ZnO ceramics Zakaria, Azmi Rizwan, Zahid Hashim, Mansor Shaari, Abdul Halim Mat Yunus, Wan Mahmood Photopyroelectric spectroscopy is used to study the band-gap energy of the ceramic (ZnO + xSb2O3), x = 0.1 - 1.5 mol% and the ceramic (ZnO + 0.4 mol% Bi2O3 + xSb2O3), x = 0 - 1.5 mol% sintered at isothermal temperature, 1280 °C, for 1 and 2 hours. The wavelength of incident light, modulated at 9 Hz, is kept in the visible range and the photopyroelectric spectrum with reference to doping level is discussed. The band-gap energy is reduced from 3.2 eV, for pure ZnO, to 2.86, 2.83 eV for the samples without Bi2O3at 0.1 mol% of Sb2O3 for 1 and 2 hours of sintering time, respectively. It is reduced to 2.83, 2.80 eV for the samples with Bi2O3 at 0 mol% of Sb2O3 for 1 and 2 hours of sintering time, respectively. The steepness factor σA which characterizes the slop of exponential optical absorption is discussed with reference to the doping level. The phase constitution is determined by XRD analysis; microstructure and compositional analysis of the selected areas are analyzed using SEM and EDX. EDP Sciences, Springer Verlag 2008 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/6551/1/Photopyroelectric%20spectroscopy%20of%20Sb2O3.pdf Zakaria, Azmi and Rizwan, Zahid and Hashim, Mansor and Shaari, Abdul Halim and Mat Yunus, Wan Mahmood (2008) Photopyroelectric spectroscopy of Sb2O3 - ZnO ceramics. The European Physical Journal Special Topics, 153 (1). pp. 33-35. ISSN 1951-6355; ESSN: 1951-6401 https://link.springer.com/article/10.1140%2Fepjst%2Fe2008-00387-6 10.1140/epjst/e2008-00387-6 |
| spellingShingle | Zakaria, Azmi Rizwan, Zahid Hashim, Mansor Shaari, Abdul Halim Mat Yunus, Wan Mahmood Photopyroelectric spectroscopy of Sb2O3 - ZnO ceramics |
| title | Photopyroelectric spectroscopy of Sb2O3 - ZnO ceramics |
| title_full | Photopyroelectric spectroscopy of Sb2O3 - ZnO ceramics |
| title_fullStr | Photopyroelectric spectroscopy of Sb2O3 - ZnO ceramics |
| title_full_unstemmed | Photopyroelectric spectroscopy of Sb2O3 - ZnO ceramics |
| title_short | Photopyroelectric spectroscopy of Sb2O3 - ZnO ceramics |
| title_sort | photopyroelectric spectroscopy of sb2o3 - zno ceramics |
| url | http://psasir.upm.edu.my/id/eprint/6551/ http://psasir.upm.edu.my/id/eprint/6551/ http://psasir.upm.edu.my/id/eprint/6551/ http://psasir.upm.edu.my/id/eprint/6551/1/Photopyroelectric%20spectroscopy%20of%20Sb2O3.pdf |