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Regulation of Phosphor's Color Gamut Area Using Mesoporous Silicate Source—A New Paradigm for the Solid‐State Lighting Segment
Author(s) -
Gandhi Sakthivel,
Thandavan Kavitha,
Kwon BongJoon,
Woo HyunJoo,
Shin Dong Soo,
Yi Soung Soo,
Jeong Jung Hyun,
Jang Kiwan
Publication year - 2015
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/jace.13494
Subject(s) - phosphor , gamut , luminescence , color rendering index , silicate , thermal stability , materials science , mesoporous material , solid state lighting , color temperature , mineralogy , nanotechnology , fabrication , optoelectronics , light emitting diode , chemical engineering , optics , chemistry , physics , biochemistry , engineering , catalysis , medicine , alternative medicine , pathology
The inception of phosphors provoked the need of highly efficient lighting sources for the conceivable next generation applications. In this regards, a striking characteristic material namely the mesoporous silica (MPS) and their series that are quite distinct to each other in their physical properties have been synthesized by adopting a cooperative self‐assemble strategy. Utilizing it, the development of high‐performance Sr 1− x Ca 1− y Eu x + y SiO 4 phosphor was traversed using a simple wet‐solid phase process. Systematic investigations on morphological, structural, and few other physical properties were carried out. The derived results are intriguing with a crystal clear alteration in the phosphor morphology when MPS has been used as a silicate source. Subsequent luminescence studies displayed its efficient yellow‐emitting property covering the red spectral components, along with good thermal luminescence stability. Perhaps, the designed prototype LED s yielded a color correlation temperature ( CCT ) < 5000 K and color rendering index ( CRI ) > 80. Therefore, it directs the way for the fabrication of potential warm white LED s with a long‐lived emission efficacy and high thermal luminescence stability.