Open AccessEffect of H3BO3 on preparation and luminescence properties of submicron green-emitting Ca3Sc2Si3O12 ∶Ce phosphor
Author(s) -
Yuanhong Liu,
Weidong Zhuang,
Wengui Gao,
Yunsheng Hu,
Tao He,
He Hua-Qiang
Publication year - 2010
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.59.8200
Subject(s) - phosphor , materials science , luminescence , emission intensity , doping , emission spectrum , analytical chemistry (journal) , thermal stability , fluorescence , particle size , combustion , particle (ecology) , optics , optoelectronics , spectral line , chemical engineering , chemistry , physics , chromatography , astronomy , oceanography , engineering , geology
Green-emitting Ca3Sc2Si3O12:Ce3+ phosphors for white LED are successfully synthesized by a gel-combustion method. The as-synthesized phosphors are investigated by XRD, SEM, and fluorescence spectrophotometer. The results indicate that the crystal structure of the phosphor is pure. The particle morphology of the sample is basically spherical in shape. The particle size is smaller than 1μm. The emission spectrum shows a broad band emission, and the main emission peak locates at 505 nm. Bright green-emission broadening is attributed to the characteristic emissions 5d-2F5/2 and 5d-2F7/2 transitions of Ce3+. The optimal doping concentration of Ce in Ca3-xSc2Si3O12:Ce is x=0.1. The thermal stability and the luminescence intensity of the Ca3Sc2Si3O12:Ce3+ are significantly improved compare with those of YAG:Ce.