서지주요정보
분무 열분해법에 의한 형광체 제조 및 특성 = Preparation and characterization of phosphors prepared by spray pyrolysis
서명 / 저자 분무 열분해법에 의한 형광체 제조 및 특성 = Preparation and characterization of phosphors prepared by spray pyrolysis / 최정수.
저자명 최정수 ; Choi, Jeong-Su
발행사항 [대전 : 한국과학기술원, 1998].
Online Access 원문보기 원문인쇄

소장정보

등록번호

8008789

소장위치/청구기호

학술문화관(문화관) 보존서고

MCHE 98036

SMS전송

도서상태

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대출가능

반납예정일

초록정보

Spray pyrolysis using FEAG (Filter Expansion Aerosol Generator) process was applied to the preparation of multicomponent phosphor materials ; red emitting perovskite $CaTiO_3$ :Pr, green emitting willemite $Zn_2SiO_4$ :Mn and YAG:Tb. The morphology, crystalline phase and thermal characteristics of the prepared particles were investigated by SEM/EDX, XRD, CPSA and TG/DTA. Optimum conditions for the preparation and post-treatment of particles with good luminescence were determined by CL (cathodoluminescence) and PL (photoluminescence). 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 $CaTiO_3$ :Pr, $Zn_2 SiO_4$ :Mn and YAG:Tb particles were 1200℃, 1200℃ and 1400℃, respectively, for 5 hours. The PL intensity of $CaTiO_3$ :Pr particles prepared by spray pyrolysis was twice larger than that by solid state reaction. XRD pattern of the zinc silicate particles from stoichiometric solution showed zinc oxide peak. After post-treatment at 1200℃ for 5hours, phase-pure willemite particles were prepared. At 900℃, at which the YAG:Tb particles prepared by solid state reaction is not activated, the particles by spray pyrolysis showed the CL intensity of 27.6 cd/㎡.

서지기타정보

서지기타정보
청구기호 {MCHE 98036
형태사항 vi, 65 p. : 삽도 ; 26 cm
언어 한국어
일반주기 저자명의 영문표기 : Jeong-Su Choi
지도교수의 한글표기 : 양승만
공동교수의 한글표기 : 박승빈
지도교수의 영문표기 : Seung-Man Yang
공동교수의 영문표기 : Seung-Bin Park
학위논문 학위논문(석사) - 한국과학기술원 : 화학공학과,
서지주기 참고문헌 : p. 63-65
주제 형광체
분무열분해법
칼슘티타네이트
진크실리케이트
야그
Phosphor
Spray pyrolysis
Calcium titanate
Zinc silicate
YAG
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