Authors:
Tingting Li
;
Zentaro Honda
;
Takeshi Fukuda
;
Jiaolian Luo
and
Norihiko Kamata
Affiliation:
Saitama University, Japan
Keyword(s):
Zn3V2O8, Csvo3, Cs3VO4, Sol-gel Process, Quantum Yield.
Related
Ontology
Subjects/Areas/Topics:
Mobile Software and Services
;
Optical Materials
;
Optics
;
Photonics, Optics and Laser Technology
;
Telecommunications
;
Wireless Information Networks and Systems
Abstract:
We synthesized Zn3V2O8, CsVO3 and Cs3VO4 by sol-gel process and studied their crystalline and luminescent properties. By optimizing the sintering conditions, pure phases of aim samples including Cs3VO4 were obtained. The annealing temperatures of 450℃ for CsVO3, 600℃ for Cs3VO4, respectively, are lower than that of 750℃ for Zn3V2O8 at the same duration of 12h. The Cs3VO4 showed quantum yield of 90% with the half-width of 120nm. It became clear that the Cs-V-O system, especially Cs3VO4, is promising for white LED applications.