期刊
DALTON TRANSACTIONS
卷 50, 期 44, 页码 16377-16385出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/d1dt03394h
关键词
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资金
- National Natural Science Foundation of China [12004148, 51802138, 12104201]
- PhD early development program of Liaocheng University [318051936]
- Natural Science Foundation of Fujian Province [2020J05200, 2021J05233]
A new type of narrow-band blue light-emitting phosphor, Rb2HfSi3O9:Eu2+, with good photoluminescence properties and thermal stability, was successfully synthesized in this study for potential use in white light-emitting diodes.
Owing to the broad application scope of phosphors for light and display, the development of narrow-band light-emitting phosphors has recently gained considerable research attention. In this study, a new type of narrow-band blue light-emitting phosphor, Rb2HfSi3O9:Eu2+, with a full width at half maximum (FWHM) of 64 nm was synthesized successfully. Upon the near visible ultraviolet (NUV) light excitation, the internal quantum efficiency of Rb2HfSi3O9:Eu2+ was 68%. It also exhibited good thermal stability, which was higher than that of a commercial blue phosphor (BaMgAl10O17:Eu2+) at 150 degrees C. The significant photoluminescence properties of Rb2HfSi3O9:Eu2+ were found to be related to its robust crystal structure, which was investigated in detail. The results indicate that Eu2+-activated Rb2HfSi3O9 is a promising phosphor for use in white light-emitting diodes.
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