Dielectric properties of B2O2 - TeO2 - Sm2O3 glass system
Glasses in the system containing [B2O3]0.3 [Te02]0.7-x [Sm2O3]x was prepared from melt-quenching technique over a wide range of composition (x = 0.3~1.2 mol%) denoted as BTS1, BTS2, BTS3, BTS4 and BTS5 respectively. The structural changes were studied by XRD spectra, FTIR spectroscopy and DTA spectr...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Malaysian Solid State Science and Technology Society
2011
|
| Online Access: | http://psasir.upm.edu.my/id/eprint/25125/ http://psasir.upm.edu.my/id/eprint/25125/1/Dielectric%20properties%20of%20B2O2%20-%20TeO2%20-%20Sm2O3%20glass%20system.pdf |
| _version_ | 1848845223497564160 |
|---|---|
| author | Che Ab Rahman, Che Zuraini Wan Yusoff, Wan Mohamad Daud Mohamed Kamari, Halimah Abdul Wahab, Zaidan |
| author_facet | Che Ab Rahman, Che Zuraini Wan Yusoff, Wan Mohamad Daud Mohamed Kamari, Halimah Abdul Wahab, Zaidan |
| author_sort | Che Ab Rahman, Che Zuraini |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | Glasses in the system containing [B2O3]0.3 [Te02]0.7-x [Sm2O3]x was prepared from melt-quenching technique over a wide range of composition (x = 0.3~1.2 mol%) denoted as BTS1, BTS2, BTS3, BTS4 and BTS5 respectively. The structural changes were studied by XRD spectra, FTIR spectroscopy and DTA spectra. Network units existed in Sm3+ doped glass and Sm3+ existed as network modifier. The higher concentration of Sm3+, the more units of TeO3 would transform to TeO4. The optimum Sm3+ concentration was about 1.0 mol% (BTS4) for this glasses system. The density (ρ) and molar volume (Vm) was obtained attributed to non-bridging oxygen (NBO). The addition of samarium oxide (4f5) indicates of strong bonding between the components and enhances the glass formation ability. The dielectric properties (dielectric constant, ε’, and dielectric loss factor, ε’’), which were characterized in the frequency range 10-2– 106 Hz over temperature range 100 – 220°C, show a larger value at lower frequencies (below 100 Hz) and higher temperatures (above 140°C). The graphs were fitted using Cole-Cole and Quasi dc models. Activation energy obtained from the master plot graph was found to decrease as Sm2O3 content increased. The optical band gap was found to decrease with increasing Sm2O3 content attributed to increase in degree of disorder in the system, direct consequence of the increases of NBO in the system. |
| first_indexed | 2025-11-15T08:43:24Z |
| format | Article |
| id | upm-25125 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T08:43:24Z |
| publishDate | 2011 |
| publisher | Malaysian Solid State Science and Technology Society |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-251252016-04-29T04:04:00Z http://psasir.upm.edu.my/id/eprint/25125/ Dielectric properties of B2O2 - TeO2 - Sm2O3 glass system Che Ab Rahman, Che Zuraini Wan Yusoff, Wan Mohamad Daud Mohamed Kamari, Halimah Abdul Wahab, Zaidan Glasses in the system containing [B2O3]0.3 [Te02]0.7-x [Sm2O3]x was prepared from melt-quenching technique over a wide range of composition (x = 0.3~1.2 mol%) denoted as BTS1, BTS2, BTS3, BTS4 and BTS5 respectively. The structural changes were studied by XRD spectra, FTIR spectroscopy and DTA spectra. Network units existed in Sm3+ doped glass and Sm3+ existed as network modifier. The higher concentration of Sm3+, the more units of TeO3 would transform to TeO4. The optimum Sm3+ concentration was about 1.0 mol% (BTS4) for this glasses system. The density (ρ) and molar volume (Vm) was obtained attributed to non-bridging oxygen (NBO). The addition of samarium oxide (4f5) indicates of strong bonding between the components and enhances the glass formation ability. The dielectric properties (dielectric constant, ε’, and dielectric loss factor, ε’’), which were characterized in the frequency range 10-2– 106 Hz over temperature range 100 – 220°C, show a larger value at lower frequencies (below 100 Hz) and higher temperatures (above 140°C). The graphs were fitted using Cole-Cole and Quasi dc models. Activation energy obtained from the master plot graph was found to decrease as Sm2O3 content increased. The optical band gap was found to decrease with increasing Sm2O3 content attributed to increase in degree of disorder in the system, direct consequence of the increases of NBO in the system. Malaysian Solid State Science and Technology Society 2011 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/25125/1/Dielectric%20properties%20of%20B2O2%20-%20TeO2%20-%20Sm2O3%20glass%20system.pdf Che Ab Rahman, Che Zuraini and Wan Yusoff, Wan Mohamad Daud and Mohamed Kamari, Halimah and Abdul Wahab, Zaidan (2011) Dielectric properties of B2O2 - TeO2 - Sm2O3 glass system. Solid State Science and Technology, 19 (2). pp. 285-300. ISSN 0128-7389 http://journal.masshp.net/volume-19-no-2-2011/ |
| spellingShingle | Che Ab Rahman, Che Zuraini Wan Yusoff, Wan Mohamad Daud Mohamed Kamari, Halimah Abdul Wahab, Zaidan Dielectric properties of B2O2 - TeO2 - Sm2O3 glass system |
| title | Dielectric properties of B2O2 - TeO2 - Sm2O3 glass system |
| title_full | Dielectric properties of B2O2 - TeO2 - Sm2O3 glass system |
| title_fullStr | Dielectric properties of B2O2 - TeO2 - Sm2O3 glass system |
| title_full_unstemmed | Dielectric properties of B2O2 - TeO2 - Sm2O3 glass system |
| title_short | Dielectric properties of B2O2 - TeO2 - Sm2O3 glass system |
| title_sort | dielectric properties of b2o2 - teo2 - sm2o3 glass system |
| url | http://psasir.upm.edu.my/id/eprint/25125/ http://psasir.upm.edu.my/id/eprint/25125/ http://psasir.upm.edu.my/id/eprint/25125/1/Dielectric%20properties%20of%20B2O2%20-%20TeO2%20-%20Sm2O3%20glass%20system.pdf |