Effect of preparation conditions in sol-gel method on yellow phosphor with wide spectrum | Zendy

YenChen Lin | Zendy; Shuhei Inoue | Zendy; Yukihiko Matsumura | Zendy; Jyh-Chen Chen | Zendy

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Effect of preparation conditions in sol-gel method on yellow phosphor with wide spectrum

Author(s) -

YenChen Lin,

Shuhei Inoue,

Yukihiko Matsumura,

Jyh-Chen Chen

Publication year - 2017

Publication title -

aip advances

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.421

H-Index - 58

ISSN - 2158-3226

DOI - 10.1063/1.4975151

Subject(s) - phosphor , photoluminescence , light emitting diode , europium , materials science , doping , quantum yield , excited state , white light , blue light , diode , optoelectronics , quenching (fluorescence) , visible spectrum , sol gel , luminescence , analytical chemistry (journal) , photochemistry , optics , chemistry , fluorescence , nanotechnology , chromatography , physics , nuclear physics

Among several methods to obtain white light in light emitting diodes (LEDs), mixing blue light with yellow light excited by blue light is the most effective and economical method. However, the quality of white light achieved by this method is poor, making it essential to develop high-quality yellow phosphors. In this study, we synthesized yellow phosphors with broad spectral width by the sol-gel method and studied the effect of various synthetic conditions on their photoluminescence spectra. Consequently, we optimized synthesis conditions for a series of yellow phosphors and found that excess europium doping caused quenching and reduced the quantum yield

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