| 학회 |
한국화학공학회 |
| 학술대회 |
2003년 봄 (04/25 ~ 04/26, 순천대학교) |
| 권호 |
9권 1호, p.427 |
| 발표분야 |
분체공학 |
| 제목 |
분무열분해공정에 의해 제조된 BaMgAl10O17 청색형광체의 발광특성 개선 |
| 초록 |
BaMgAl10O17:Eu2+ (BAM) blue phosphor particles with an improved photoluminescence intensity under the excitation of vacuum ultraviolet(VUV) light were prepared by spray pyrolysis. In order to improve the photoluminescence intensity, Er3+ and Nd3+ ions were used as a co-doping element. The VUV characteristics of BAM:Eu2+,M+(M= Er, Nd) were monitored with varying the Er3+ and Nd3+content in order to find the optimal co-doping concentration when they were prepared by spray pyrolysis. Under the VUV excitation, it was found that doping Er3+ or Nd3+ is greatly helpful to enhance the photoluminescence intensity of BAM:Eu2+ blue phosphor particles. The M3+ doping effect on the photoluminescence intensity was pronounced especially whether were excited at 172 nm. The maximum intensity was obtained when the M3+ content was 1.0 at. % with respect to Ba element. It was also found that the photoluminescence intensity of BAM:Eu2+,M+(M=Er3+, Nd3+) particles was also further improved by making them in spherical shape which was successfully achieved by controlling the spray solution. |
| 저자 |
이동렬1, 정경열2, 강윤찬2, 박희동2, 유승곤1
|
| 소속 |
1충남대, 2한국화학(연) |
| 키워드 |
BAM; 청색형광체; 분무열분해공정
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| E-Mail |
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