Enhancing orange-reddish emission of the Sm3+-doped ZnO-B2O3-SLS glasses for the potential glass phosphor material

Cheong, Wei Mun and Mohd Zaid, Mohd Hafiz and Yap Wing Fen, Yap Wing Fen and Tan Sin Tee, Tan Sin Tee and Matori, Khamirul Amin and Zhi Wei Loh, Zhi Wei Loh and Mayzan, Mohd Zul Hilmi (2023) Enhancing orange-reddish emission of the Sm3+-doped ZnO-B2O3-SLS glasses for the potential glass phosphor material. Optics and Laser Technology, 158 (8). pp. 1-10.

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Abstract

In this paper, a series of [Sm2O3]x[(ZnO)0.5 (B2O3)0.1 (SLS)0.4]1-x, where × = 0, 0.01, 0.02, and 0.03 in weight fraction was fabricated via melt-quenching method. The influence of the samarium ion (Sm3+) concentration on the structural and optical properties was investigated. X-ray diffraction (XRD) and Fourier-transform infrared spectroscopy (FTIR) confirmed the samples’ glassy (amorphous) behavior. The optical absorption intensity enhanced as the dopant increased, whereas the optical band gap reduced with the progression of Sm3+ concentration. The sample’s refractive index and Urbach energy range from 2.145 to 2.203 and 0.682 eV to 0.713 eV, respectively. From the photoluminescence studies, 3 wt% Sm3+-doped samples indicate the most intense emission in the orange-reddish region among the other samples. The calculated CIE coordinates for Sm3+ doped ZnO–B2O3–SLS glasses are approximate (0.57, 0.43), near the Amber LED NSPAR 70BS produced by Nichia Corporation. In addition, the CCT of the Sm3+-doped samples at about ~ 1750 K reveals prepared glass samples have bright orange-reddish emission. These findings indicate that Sm3+-doped in ZnO-B2O3-SLS has enhanced its orange-reddish emission and potential as an orange-reddish glass phosphor material in optoelectronic devicessuch as glass phosphor for LEDs.

Item Type:	Article
Uncontrolled Keywords:	Glasses Energy transfer Luminescence CIE chromaticity
Subjects:	T Technology > T Technology (General)
Divisions:	Faculty of Applied Science and Technology > Department of Technology and Natural Resources
Depositing User:	Mr. Mohamad Zulkhibri Rahmad
Date Deposited:	18 Jun 2023 01:29
Last Modified:	18 Jun 2023 01:29
URI:	http://eprints.uthm.edu.my/id/eprint/8822

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