Exploring Eu3+-doped ZnO-SiO2 glass derived by recycling renewable source of waste rice husk for white-LEDs application
In this work, zinc silicate glass system (ZnO-SiO2) doped with various europium ion (Eu3+) concentrations derived from white rice husk ash (WRHA) were synthesized using melt and quench method. All samples determined by X-ray diffractometer (XRD) showed amorphous phase structure. The surface microgra...
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| Format: | Article |
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Elsevier
2019
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| _version_ | 1825951212574343168 |
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| author | Mohamed Khaidir, Rahayu Emilia Fen, Yap Wing Mohd Zaid, Mohd Hafiz Matori, Khamirul Amin Sheh Omar, Nur Alia Anuar, Muhammad Fahmi Abdul Wahab, Siti Aisyah Khirel Azman, Aisyah Zakiah |
| author_facet | Mohamed Khaidir, Rahayu Emilia Fen, Yap Wing Mohd Zaid, Mohd Hafiz Matori, Khamirul Amin Sheh Omar, Nur Alia Anuar, Muhammad Fahmi Abdul Wahab, Siti Aisyah Khirel Azman, Aisyah Zakiah |
| author_sort | Mohamed Khaidir, Rahayu Emilia |
| collection | UPM |
| description | In this work, zinc silicate glass system (ZnO-SiO2) doped with various europium ion (Eu3+) concentrations derived from white rice husk ash (WRHA) were synthesized using melt and quench method. All samples determined by X-ray diffractometer (XRD) showed amorphous phase structure. The surface micrographs detected by Field emission scanning electron microscopy (FESEM) showed Eu3+ addition had reduced the sample’s porosity. Fourier transform infrared (FTIR) revealed the presence of Eu3+ ions had weakened the absorption peaks of SiO4. Meanwhile, ultra-violet visible spectroscopy (UV–vis) showed the absorption edges were shifted towards higher wavelength with Eu3+ addition. Band gap values were increased from 2.97 eV to 4.23 eV when Eu3+ dopant increased but decreased back to 3.98 eV at highest concentration. Photoluminescence spectroscopy (PL) analysis showed intense red emission at 600 nm corresponding to 5D0 → 7F2 transition were enhanced by Eu3+ doping. Hence, their luminescent properties are useful for optical device such as white light emitting diodes. |
| first_indexed | 2024-03-06T10:26:33Z |
| format | Article |
| id | upm.eprints-79810 |
| institution | Universiti Putra Malaysia |
| last_indexed | 2024-03-06T10:26:33Z |
| publishDate | 2019 |
| publisher | Elsevier |
| record_format | dspace |
| spelling | upm.eprints-798102022-11-08T01:29:59Z http://psasir.upm.edu.my/id/eprint/79810/ Exploring Eu3+-doped ZnO-SiO2 glass derived by recycling renewable source of waste rice husk for white-LEDs application Mohamed Khaidir, Rahayu Emilia Fen, Yap Wing Mohd Zaid, Mohd Hafiz Matori, Khamirul Amin Sheh Omar, Nur Alia Anuar, Muhammad Fahmi Abdul Wahab, Siti Aisyah Khirel Azman, Aisyah Zakiah In this work, zinc silicate glass system (ZnO-SiO2) doped with various europium ion (Eu3+) concentrations derived from white rice husk ash (WRHA) were synthesized using melt and quench method. All samples determined by X-ray diffractometer (XRD) showed amorphous phase structure. The surface micrographs detected by Field emission scanning electron microscopy (FESEM) showed Eu3+ addition had reduced the sample’s porosity. Fourier transform infrared (FTIR) revealed the presence of Eu3+ ions had weakened the absorption peaks of SiO4. Meanwhile, ultra-violet visible spectroscopy (UV–vis) showed the absorption edges were shifted towards higher wavelength with Eu3+ addition. Band gap values were increased from 2.97 eV to 4.23 eV when Eu3+ dopant increased but decreased back to 3.98 eV at highest concentration. Photoluminescence spectroscopy (PL) analysis showed intense red emission at 600 nm corresponding to 5D0 → 7F2 transition were enhanced by Eu3+ doping. Hence, their luminescent properties are useful for optical device such as white light emitting diodes. Elsevier 2019 Article PeerReviewed Mohamed Khaidir, Rahayu Emilia and Fen, Yap Wing and Mohd Zaid, Mohd Hafiz and Matori, Khamirul Amin and Sheh Omar, Nur Alia and Anuar, Muhammad Fahmi and Abdul Wahab, Siti Aisyah and Khirel Azman, Aisyah Zakiah (2019) Exploring Eu3+-doped ZnO-SiO2 glass derived by recycling renewable source of waste rice husk for white-LEDs application. Results in Physics, 15. pp. 1-7. ISSN 2211-3797 https://www.sciencedirect.com/science/article/pii/S221137971931993X 10.1016/j.rinp.2019.102596 |
| spellingShingle | Mohamed Khaidir, Rahayu Emilia Fen, Yap Wing Mohd Zaid, Mohd Hafiz Matori, Khamirul Amin Sheh Omar, Nur Alia Anuar, Muhammad Fahmi Abdul Wahab, Siti Aisyah Khirel Azman, Aisyah Zakiah Exploring Eu3+-doped ZnO-SiO2 glass derived by recycling renewable source of waste rice husk for white-LEDs application |
| title | Exploring Eu3+-doped ZnO-SiO2 glass derived by recycling renewable source of waste rice husk for white-LEDs application |
| title_full | Exploring Eu3+-doped ZnO-SiO2 glass derived by recycling renewable source of waste rice husk for white-LEDs application |
| title_fullStr | Exploring Eu3+-doped ZnO-SiO2 glass derived by recycling renewable source of waste rice husk for white-LEDs application |
| title_full_unstemmed | Exploring Eu3+-doped ZnO-SiO2 glass derived by recycling renewable source of waste rice husk for white-LEDs application |
| title_short | Exploring Eu3+-doped ZnO-SiO2 glass derived by recycling renewable source of waste rice husk for white-LEDs application |
| title_sort | exploring eu3 doped zno sio2 glass derived by recycling renewable source of waste rice husk for white leds application |
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