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Mendeleev Commun., 2024 Volume 34, Issue 4, Pages 598–600 (Mi mendc199)

Communications

Spectroscopic analysis of Tb3+ activated Ca3Al2O6 phosphor for display applications

K. Koteswara Raoa, M. Ch. Raoab, V. Dubeyc, K. V. Murthyd

a Department of Physics, Krishna University, Machilipatnam, India
b Department of Physics, Andhra Loyola College, Vijayawada, India
c Department of Physics, North-Eastern Hill University, Shillong, Meghalaya, India
d Faculty of Engineering and Technology, University of Baroda, Vadodara, India

Abstract: The experimental results of luminescence measurements in Ca3Al2O6 : Tb showed single excitation wavelengths at 246 and 278 nm in the UV region. For the 278 nm excitation, six distinct emission peaks were found at 378, 419, 437, 447, 487 and 544 nm. Some spectroscopic parameters were calculated using CIE coordinates showing emission in the near-blue region, which may be useful for various display devices.

Keywords: Ca3Al2O6 : Tb3+, phosphors, rare earth, XRD, FTIR, CIE, blue emission.

Language: English

DOI: 10.1016/j.mencom.2024.06.042



© Steklov Math. Inst. of RAS, 2025