Study on photoluminescence and energy transfer of Eu3+/Sm3+ single-doped and co-doped BaB8O13 phosphors

Mantwa A. Lephoto, Kamohelo G. Tshabalala, Selepe J. Motloung, Iorkyaa Ahemen, Odireleng M. Ntwaeaborwa*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

Abstract

A series of Sm3+, Eu3+ and Eu3+- Sm3+ doped BaB8O13 were synthesized by using a solution combustion method. When excited at 394 nm, BaB8O13: Eu3+ emits red light, and the strongest peak was located at 614 nm, which is attributed to the 5D07F2 transition of Eu3+. BaB8O13: Sm3+ produced red-orange light, and the major emission peak was located at 596 nm under the 402 nm radiation excitation, which is assigned to the 4G5/26H7/2 transition of Sm3+. When excited at 402 nm, the PL emission intensity from BaB8O13: 0.05Eu3+; 0.005Sm3+ at 614 nm was enhanced considerably compared to that of the sample without Sm3+, suggesting that energy was transferred from Sm3+ to Eu3+. The Commission International de I′Eclairage (CIE) chromaticity coordinates of BaB8O13: 0.05Eu3+; 0.005Sm3+ powder phosphor (0.637, 0.362) are located in the red region indicating that the phosphor can serve as a source of red light in LEDs.

Original languageEnglish
Pages (from-to)89-95
Number of pages7
JournalPhysica B: Condensed Matter
Volume535
DOIs
Publication statusPublished - 15 Apr 2018
Externally publishedYes

Keywords

  • Borates
  • Energy transfer
  • Phosphor
  • Photoluminescence
  • Solution combustion

Fingerprint

Dive into the research topics of 'Study on photoluminescence and energy transfer of Eu<sup>3+</sup>/Sm<sup>3+</sup> single-doped and co-doped BaB<sub>8</sub>O<sub>13</sub> phosphors'. Together they form a unique fingerprint.

Cite this