화학공학소재연구정보센터
학회 한국화학공학회
학술대회 2007년 봄 (04/19 ~ 04/20, 울산 롯데호텔)
권호 13권 1호, p.1003
발표분야 재료
제목 Synthesis of Y2O3:Eu nanoparticle phosphor by o/w emulsion-assisted flame spray pyrolysis
초록 O/W Emulsion-assisted Flame Spray Pyrolysis(O/W EFSP) was developed to synthesis of nanoparticles. Conventional flame spray pyrolysis has difficulty in preparation of multi-component nanoparticles and nanoparticles having desired phase owing to gas-to-particle and high temperature. However, at O/W EFSP, the oil droplet in o/w emulsion function as a detonator in flame, the nanoparticles were synthesized through breaking of water droplet. Not from gas-to-particle but from droplet-to-particle, the nanoparticles were synthesized at relatively low temperature. And, O/W EFSP has very high productivity and economical efficiency.
Eu-doped Y2O3 phosphor is well known as a good red phosphor for application in displays such as PDPs, FEDs, projection televisions and FL. At this study, Y2O3:Eu nanoparticles phosphor was synthesized by O/W EFSP. The crystal structure and the morphology of Y2O3:Eu nanoparticles synthesized by O/W EFSP were was investigated by XRD and SEM. Photoluminescence measurements were performed with a spectrophotometer using a Xe lamp excitation source.
저자 송신애1, 정경열2, 정윤섭3, 박승빈1
소속 1한국과학기술원, 2공주대, 3중소기업진흥공단
키워드 Y2O3:Eu; Nanoparticles; o/w emulsion; flame spray pyrolysis; o/w emulsion-assisted flame spray pyrolysis
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