Available online at www.sciencedirect.com ScienceDirect Materials Today: Proceedings 4 (2017) 6415–6422 www.materialstoday.com/proceedings 2214-7853© 2017 Elsevier Ltd. All rights reserved. Selection and Peer-review under responsibility of International Conference on Science and Technology of the Emerging Materials. STEMa2016 Comparative study of Al 2 O 3 -MO-BaO-P 2 O 5 glasses doped with Sm 3+ (MO = Na 2 O and ZnO) S. Ravangvong a, * a Program in Physics and General Science, Faculty of Science and Technology, Phetchaburi Rajabhat University, Phetchaburi 76000, Thailand , N. Chanthima b,c , Y. Tariwong b,c and J. Kaewkhao b,c 2 Physics Program, Faculty of Science and Technology, Nakhon Pathom Rajabhat University, Nakhon Pathom 73000, Thailand 3 Center of Excellence in Glass Technology and Materials Science (CEGM), Nakhon Pathom Rajabhat University, Nakhon Pathom 73000, Thailand Abstract In this work, the Al 2 O 3 -MO-BaO-P 2 O 5 -Sm 2 O 3 (MO = Na 2 O and ZnO) were prepared by melt-quench technique. Both glasses were doped with Sm 2 O 3 in different concentrations (0.00, 0.05, 0.10, 0.50, 1.00 and 2.00 mol%). The density of Al 2 O 3 -Na 2 O- BaO-P 2 O 5 -Sm 2 O 3 (NaABP) and Al 2 O 3 -ZnO-BaO-P 2 O 5 -Sm 2 O 3 (ZnABP) glasses tended to increase with increasing of Sm 2 O 3 contents. The molar volume of NaABP glass not depends on the concentration of Sm 2 O 3 . While, the molar volume of ZnABP glass tended to increase with increasing concentration of Sm 2 O 3 . For both glass samples an increase in the absorption peaks were observed with the increase in Sm 3+ concentration. The luminescence emission spectrum of 0.5 mol% Sm 2 O 3 doped glasses shows intense orange emission around 597 nm ascribed to 4 G 5/2 → 6 H 7/2 transition with 402 nm excitation wavelength. Also, the luminescence decay curves of both NaABP and ZnABP glasses have been investigated. © 2017 Elsevier Ltd. All rights reserved. Selection and Peer-review under responsibility of International Conference on Science and Technology of the Emerging Materials. Keywords: Optical properties; Phosphate glass; Photoluminescence; Samarium 1. Introduction In the present, glasses have been investigated for developing of optical and optoelectronic devices, such as display devices, tunable solid-state lasers and fiber optic communication devices [1]. Also, they are easy to shape, low production cost and have high transparency [2]. Trivalent rare earth (RE 3+ ) -doped glasses have gained rapid * Corresponding author. Tel.: +66-8-742-1969; fax: +66-3-249-3266. E-mail address: sunantasak@hotmail.com