Publication Date:
2015-02-07
Description:
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 LEDs 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 LEDs with a long-lived emission efficacy and high thermal luminescence stability.
Print ISSN:
0002-7820
Electronic ISSN:
1551-2916
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
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