OPTICAL PROPERTIES OF GD2MOB2O9 TB3+ PHOSPHORS FOR FORENSIC APPLICATIONS

Authors

  • Noppadon Chamchoi Program in Forensic Science and Criminal Justice, Faculty of Science, Silpakorn University, Nakhon Pathom, Thailand.
  • Narong Sangwaranatee Department of Applied Physics, Faculty of Science and Technology, Suan Sunandha Rajabhat University, Bangkok, Thailand.
  • Rajanavaneethakrishna Rajaramakrishna Department of Post Graduate Studies and Research in Physics, The National College, Jayanagar, Bangalore, India.
  • Onanong Chaemlek Department of Physics, Faculty of Science, Silpakorn University, Nakhon Pathom, Thailand.
  • Jakrapong Kaewkhao Center of Excellence in Glass Technology and Materials Science (CEGM), Nakhon Pathom Rajabhat University, Nakhon Pathom, Thailand.

Keywords:

Photoluminescence, Gd2MoB2O9, phosphor, fingerprint technology

Abstract

The Gd2MoB2O9:Tb3+ phosphors were prepared by a solid-state reaction method with various concentration of Tb3+ ions as well as sintered at 900C temperature with different milling time. The photoluminescence properties were studied. The phosphors were investigated by X-ray diffraction (XRD), diffuse reflectance spectroscopy, photoluminescence, energy level scheme and decay curves studies. The phosphors were excited at a wavelength of 484 nm, the emission of the optimized phosphor at 542 nm was observed that corresponds to the 5D4→7F5 transition of Tb3+ ions. The Gd2MoB2O9:Tb3+ phosphors have potential applications in forensic science for latent fingerprint identification.

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Published

2026-08-28

How to Cite

Chamchoi, N., Sangwaranatee, N., Rajaramakrishna, R., Chaemlek, O., & Kaewkhao, J. (2026). OPTICAL PROPERTIES OF GD2MOB2O9 TB3+ PHOSPHORS FOR FORENSIC APPLICATIONS. Suranaree Journal of Science and Technology, 29(1), 010100(1–5). retrieved from https://ph04.tci-thaijo.org/index.php/SUJST/article/view/15049

Issue

Vol. 29 No. 1 (2022): January - February

Section

Research Article