서지주요정보
분무 열분해법에 의한 복합 형광체 제조 및 특성 = Preparation and characterization of multi-layer phosphors prepared by spray pyrolysis
서명 / 저자 분무 열분해법에 의한 복합 형광체 제조 및 특성 = Preparation and characterization of multi-layer phosphors prepared by spray pyrolysis / 정윤섭.
저자명 정윤섭 ; Chung, Yun-Seup
발행사항 [대전 : 한국과학기술원, 1999].
Online Access 원문보기 원문인쇄

소장정보

등록번호

8009439

소장위치/청구기호

학술문화관(문화관) 보존서고

MCHE 99032

SMS전송

도서상태

이용가능

대출가능

반납예정일

초록정보

Spray pyrolysis using FEAG (Filter Expansion Aerosol Generator) process was applied to the preparation of multicomponent phosphor materials ; red emitting YAG:Eu, $Y_2O_3$:Eu and Ultrasonic process was applied to the preparation of multi-layer phosphor material ; YAG coated $Y_2O_3$:Eu. The morphology and crystalline phase of the prepared particles were investigated by SEM (Scanning Electron Microscopy), XRD (X-Ray Diffraction) and CPSA (Centrifugal Particle Size Analyser). Optimum conditions for the preparation and post-treatment of particles with good luminescence were determined by CL (cathodoluminescence) and PL (photoluminescence). The stability for the electrical beam and the luminescence characteristics of YAG coated $Y_2O_3$:Eu were investigated by long time irradiation. Spherical and non-agglomerated particles with submicron size were prepared by spray pyrolysis. The mean size of the particles increased with the solution concentration. Phase-pure particles were prepared at lower temperatures than solid state reactions. The particles with pure phase and high crystallinity had high brightness. The optimum post-treatment conditions of the YAG:Eu and $Y_2O_3$:Eu particles were 1400℃ for 5 hrs and 1500℃ for 1 hr, respectively. The luminescence characteristics of YAG coated $Y_2O_3$:Eu particles showed the characteristics of YAG:Eu and $Y_2O_3$:Eu. The CL intensity of YAG:Eu coated $Y_2O_3$:Eu saturated to the intensity of YAG:Eu as the YAG coating thickness was increased. The stability for the electrical beam was sharply improved after coating.

서지기타정보

서지기타정보
청구기호 {MCHE 99032
형태사항 vi, 65 p. : 삽도 ; 26 cm
언어 한국어
일반주기 저자명의 영문표기 : Yun-Seup Chung
지도교수의 한글표기 : 박승빈
지도교수의 영문표기 : Seung-Bin Park
학위논문 학위논문(석사) - 한국과학기술원 : 화학공학과,
서지주기 참고문헌 : p. 61-65
주제 형광체
분무열분해
코팅
야그-이트리아
Phosphor
Spray pyrolysis
Coating
YAG-$Y_2O_3$:Eu
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