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Tunable white emission from scintillated zinc borosilicate doped with dysprosium oxide and incorporated with bio-silica from rice husk


Abdul Wahab, Rabiatul Adawiyah and Mohd Zaid, Mohd Hafiz and Matori, Khamirul Amin and Mohamed Kamari, Halimah and Sarmani, Abdul Rahman and Zhi, Wei Loh and Wei, Mun Cheong and Sawao, Honda and Yuji, Iwamoto (2022) Tunable white emission from scintillated zinc borosilicate doped with dysprosium oxide and incorporated with bio-silica from rice husk. Optik, 270. art. no. 170082. 01-12. ISSN 0030-4026; ESSN: 1618-1336


A series of zinc borosilicate glass doped with dysprosium oxide (Dy-ZBS) has been successfully fabricated through the conventional melt-quench technique with the incorporation of bio-silica source from rice husk ash. The physical, structural, luminescence, and optical properties of the fabricated glass have been studied utilizing the bulk density, x-ray diffraction pattern, photoluminescence emission spectra, chromaticity coordinates, absorption spectra, and optical band gap. The bulk density improved from 3.468 gcm− 3 to 3.635 gcm− 3 as the dopant concentration increased due to the compactness of the network structure. The amorphous nature of the glass has been justified by using an X-ray diffraction pattern. Whereas the photoluminescence emission spectra have been confirmed the presence of blue and yellow colors and were intensified as the Dy3+ increases. The CCT values from chromaticity diagram of the best white light-reaching coordinates are (0.3028, 0.3334) and classified as cool white. The optical absorbance was found to be enhanced as the Dy2O3 raised from 0 wt% to 3 wt%. Meanwhile, both the direct and indirect optical band gaps were decreased consecutively. Thus, this fabricated glass is suggested to be future solid-state light materials as a white light-emitting diode (WLED) light source.

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Additional Metadata

Item Type: Article
Divisions: Faculty of Science
Institut Nanosains dan Nanoteknologi
DOI Number: https://doi.org/10.1016/j.ijleo.2022.170082
Publisher: Elsevier GmbH
Keywords: Zinc borosilicate; Rice husk; Dysprosium oxide; White light; Optical properties; Bio-silica; Tunable white emission; Luminescence properties; Scintillation; Glass-ceramics; Fabrication
Depositing User: Mr. Mohamad Syahrul Nizam Md Ishak
Date Deposited: 13 Mar 2024 09:12
Last Modified: 13 Mar 2024 09:12
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1016/j.ijleo.2022.170082
URI: http://psasir.upm.edu.my/id/eprint/102518
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