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  • 09월 01일 18시 이후 : 초록수정 불가능, 일정확인 및 검색만 가능

제118회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Fabrication of nanostructured vanadium oxide thin film for smart window applications

등록일
2016년 9월 1일 11시 11분 54초
접수번호
2321
발표코드
MAT.P-624 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
10월 14일 (금요일) 11:00~12:30
발표형식
포스터
발표분야
재료화학
저자 및
공동저자
정유홍, 정성욱1,*
부산대학교 화학공학과, Korea
1부산대학교 화공생명공학부, Korea
Vanadium dioxide (VO2) has attracted much attention because it is known to undergo a reversible, thermally induced metal semiconductor phase transition. The outcome of this phase transition is non-linear optical, electrical and magnetic characteristics with respect to temperature. Particularly its optical properties change significantly in the visible and near IR range at its phase transition temperature (TC ~ 68℃). As the temperature exceeds TC, it goes through structural change and becomes less transparent and more reflective, preventing thermal radiation from excessively heating while remaining visually transparent. Therefore, this phenomenon can be applicable to smart window applications because incorporating economically sustainable thermochromic films into window products could have significant impact on energy saving technology. We developed solution-phase synthetic routes to monodisperse, organically functionalized vanadium oxide nanoparticles in order to use them as potential thermochromic materials for smart window application. Vanadium oxide thin films have been fabricated via spin coating the solution of vanadium oxide nanoparticles. As-prepared vanadium oxide nanoparticles and their thin film have been characterized by means of transmission electron microscopy (TEM), scanning electron microscopy (SEM), powder X-ray diffraction (XRD), Fourier transform infrared absorption spectroscopy (FT-IR), and X-ray photoelectron spectroscopy (XPS). Results of structural and spectroscopic studies on the formation of vanadium oxide nanoparticles and their films as well as the effects of solution compositions and reaction conditions will be discussed together with the optical properties of vanadium oxide thin films.

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