Detailed Information
Cited 39 time in 
Cited 42 time in 
Cited 42 time in
Metadata Downloads
Synthesis and luminescent characteristics of Ca2-xSrxSiO4:Eu2+ as a potential green-emitting phosphor for near UV-white LED applications
- Issue Date
- 15-Oct-2010
- Publisher
- ELSEVIER SCIENCE BV
- Keywords
- Green-emitting phosphor; White LEDs; Silicate composition; Concentration quenching
- Citation
- MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS, v.173, no.1-3, pp.76 - 79
- Indexed
- SCIE
SCOPUS
- Volume
- 173
- Number
- 1-3
- Start Page
- 76
- End Page
- 79
- ISSN
- 0921-5107
- Abstract
- The photoluminescence properties of enhanced green-emitting Ca2-xSrxSiO4:Eu2+ were optimized for applications to near ultraviolet light emitting diodes (LEDs). The optimal firing conditions for Ca2-xSrxSiO4:Eu2+ prepared by solid-state reaction synthesis were found to be 1300 degrees C for 6 h. Ca2-xSrxSiO4:Eu2+ showed strong green emission peak at approximately 520 nm under excitation by near UV light of 390 nm. The effects of Sr2+ substitution into the Ca2+ sites on the emission band shift were investigated. The enhanced emission intensity and blue shift in the emission band of Ca2-xSrxSiO4:Eu2+ was explained by competition between crystal field and nephelauxetic effect. These characteristics make Ca2-xSrxSiO4:Eu2+ a good candidate for green-emitting phosphors in the production of white light in phosphor conversion white LEDs. (C) 2010 Elsevier B.V. All rights reserved.
- Files in This Item
- There are no files associated with this item.
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.
Related Researcher
- YOON, DAE HO
- Engineering (Advanced Materials Science and Engineering)