Optical band gap and luminescence study of yttrium doped neodymium lead borotellurite glass system

Faculty of Applied Sciences, Universiti Teknologi MARA, 40450 Shah Alam, Selangor, Malaysia; S. N. M. Rafien; A. Hashim; Faculty of Plantation and Agrotechnology, Universiti Teknologi MARA Cawangan Melaka, Jasin Campus, 77300 Merlimau Melaka, Malaysia; H. Laoding; Faculty of Applied Sciences, Universiti Teknologi MARA Pahang, 26400 Bandar Tun Abdul Razak Jengka, Pahang, Malaysia; W. A. W. Razali; Faculty of Applied Sciences, Universiti Teknologi MARA Pahang, 26400 Bandar Tun Abdul Razak Jengka, Pahang, Malaysia; N. Yahya; Faculty of Applied Sciences, Universiti Teknologi MARA Pahang, 26400 Bandar Tun Abdul Razak Jengka, Pahang, Malaysia

doi:10.15251/cl.2022.197.463

journal article·2022-06Open access

Optical band gap and luminescence study of yttrium doped neodymium lead borotellurite glass system

Faculty of Applied Sciences, Universiti Teknologi MARA, 40450 Shah Alam, Selangor, Malaysia, S. N. M. Rafien, A. Hashim, Faculty of Plantation and Agrotechnology, Universiti Teknologi MARA Cawangan Melaka, Jasin Campus, 77300 Merlimau Melaka, Malaysia, H. Laoding, Faculty of Applied Sciences, Universiti Teknologi MARA Pahang, 26400 Bandar Tun Abdul Razak Jengka, Pahang, Malaysia, W. A. W. Razali, Faculty of Applied Sciences, Universiti Teknologi MARA Pahang, 26400 Bandar Tun Abdul Razak Jengka, Pahang, Malaysia, N. Yahya, Faculty of Applied Sciences, Universiti Teknologi MARA Pahang, 26400 Bandar Tun Abdul Razak Jengka, Pahang, Malaysia

Chalcogenide Letters· Volume 19· Issue 7

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Abstract

"Glasses of composition (49-x)H3BO3-35TeO2-15PbO-1.0Nd2O3-xY2O3 (x = 0.0, 0.5, 1.0, 1.5, 2.0 and 2.5 mol%) were successfully prepared by a melt-quench method. The effect of Y2O3 on the optical properties of the glasses were investigated by using Uv-Vis NIR and photoluminescence spectroscopy. X-ray diffraction pattern of the prepared glasses exhibits amorphous nature. Absorption spectra of the glasses are recorded in the range 400 – 1100 nm and shows eleven absorption peaks. In order to determine the optical band gap of the glass sample, the Uv-Vis NIR measurement has been carried out in the room temperature. The values of direct and indirect optical band gap initially decreasing before increasing, which were attributed to structural changes induced by the inclusion of Y2O3. The luminescence spectra were obtained under 581 nm wavelength."

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Research context

Ceramics & glasses

OpenAlex topics: Glass properties and applications · Luminescence Properties of Advanced Materials · Phase-change materials and chalcogenides

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

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