Issue 1, 2022

Luminescence properties, energy transfer and thermal stability of white emitting phosphor Sr3(PO4)2:Ce3+/Tb3+/Mn2+ for white LEDs

Abstract

A series of Sr3(PO4)2:Ce3+/Mn2+/Tb3+ phosphors were synthesized by a high temperature solid phase method. After introducing Ce3+ as sensitizer in Sr3(PO4)2:Ce3+/Mn2+, the efficient energy transfer from Ce3+ to Mn2+ was observed and analyzed in detail, and Sr3(PO4)2:Ce3+/Mn2+ was demonstrated to be color tunable, changing from blue to orange red. In addition, Tb3+ ion, which mainly emits green light, was further added into the Sr3(PO4)2:Ce3+/Mn2+. Due to the addition of this green emission, the white emitting phosphors with good quality were obtained. At the same time, the energy transfer mechanisms among Ce3+, Tb3+ and Mn2+ ions were also analyzed in detail. The results show that Sr3(PO4)2:Ce3+/Mn2+/Tb3+ is a promising candidate for white light emitting diodes.

Graphical abstract: Luminescence properties, energy transfer and thermal stability of white emitting phosphor Sr3(PO4)2:Ce3+/Tb3+/Mn2+ for white LEDs

Article information

Article type
Paper
Submitted
03 Nov 2021
Accepted
15 Dec 2021
First published
21 Dec 2021
This article is Open Access
Creative Commons BY-NC license

RSC Adv., 2022,12, 420-428

Luminescence properties, energy transfer and thermal stability of white emitting phosphor Sr3(PO4)2:Ce3+/Tb3+/Mn2+ for white LEDs

Y. Ma, S. Fu, Y. Zhao, C. Liu, L. Li, Z. Wang, H. Suo, D. Wang, J. Zhao and P. Li, RSC Adv., 2022, 12, 420 DOI: 10.1039/D1RA08062H

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