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Luminous properties of color tunable strontium thio-selenide phosphors for LEDs application
- Issue Date
- Sep-2011
- Publisher
- ELSEVIER SCIENCE BV
- Keywords
- Light emitting diodes; Phosphors; Thio-selenide; Europium; Luminescence
- Citation
- MATERIALS LETTERS, v.65, no.17-18, pp.2690 - 2692
- Indexed
- SCIE
SCOPUS
- Journal Title
- MATERIALS LETTERS
- Volume
- 65
- Number
- 17-18
- Start Page
- 2690
- End Page
- 2692
- ISSN
- 0167-577X
- Abstract
- In this study, alkali earth thio-selenide phosphor, SrSxSe1-x:Eu2+. was prepared using the conventional solid state reaction method. The synthesized phosphor displayed a broad excitation band that was suitable for blue or near UV LED applications and emitted light at various wavelengths (563-605 nm) with different chemical compositions. Like the case of other alkali phosphors. Zn2+ substitution for Sr2+ greatly enhanced the emission of this thio-selenide phosphor. The LED fabricated with the synthesized phosphor produced white light using a blue LED with a CIE-1931 coordinate, T-c and R-a of (0.3199, 0.3107), 6577 K and 51.6, respectively. (C) 2011 Elsevier B.V. All rights reserved.
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