| 학회 |
한국화학공학회 |
| 학술대회 |
2007년 봄 (04/19 ~ 04/20, 울산 롯데호텔) |
| 권호 |
13권 1호, p.1020 |
| 발표분야 |
재료 |
| 제목 |
The synthesis of Li2SrSiO4:Eu2+ phosphor particles by spray pyrolysis |
| 초록 |
Most of commercial methods producing white LED is to combine blue LED and yellow YAG:Ce3+phosphor. This method is presently the most efficient technique. However, this method is rather low color rendering index (CRI) because of its low red luminescence. Recently, oxinitride and silicate phosphors have been reported as new yellow phosphors to replace YAG:Ce3+ because of high CRI. In this paper, we synthesized orange-yellow emitting Li2SrSiO4:Eu2+ phosphor particles by spray pyrolysis and investigated the photoluminescence (PL) properties. The crystal structure and morphology of Li2Sr1-xSiO4:Eu2+x were investigated by X-ray diffractometry and scanning electron microscopy, respectively. The PL spectra of Li2Sr1-xSiO4:Eu2+x were measured using a spectrofluorophotometer under the excitation of a 450 nm UV produced by a Xe flash lamp. |
| 저자 |
강희상, 박승빈
|
| 소속 |
한국과학기술원 생명화학공학과 / 초미세화학공정센터 |
| 키워드 |
phosphor; LED; Spray pyrolysis
|
| E-Mail |
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| 원문파일 |
초록 보기 |
