MGa2B2O7:Bi3+,Al3+(M = Sr, Ba) blue phosphors with a quantum yield of 99% and negative thermal quenching

  • Shuai Yang
  • , Yuning Wu
  • , Fangyu Yue
  • , Ruijuan Qi
  • , Bin Jiang
  • , Jiahao Wu
  • , Yang Shen
  • , Chungang Duan
  • , Yongkui Shan
  • , Qingbiao Zhao*
  • , Yuefei Zhang
  • *Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

11 Scopus citations

Abstract

By optimizing the Debye temperature, we identified two extremely efficient phosphors based on the S-P transition of Bi3+. The quantum yields of Sr0.99Ga1.50B2O7:0.01Bi3+,0.50Al3+ and Ba0.995Ga1.60B2O7:0.005Bi3+,0.40Al3+ phosphors reach 96% and 99%, respectively. Moreover, Sr0.99Ga1.50B2O7:0.01Bi3+,0.50Al3+ exhibits negative thermal quenching, which shows unique advantages for practical application. The blue phosphors with quantum efficiencies close to unity and superior thermal stability can be competitive candidates for practical applications.

Original languageEnglish
Pages (from-to)4257-4266
Number of pages10
JournalInorganic Chemistry Frontiers
Volume8
Issue number18
DOIs
StatePublished - 21 Sep 2021

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