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  • 02월 26일 17시 이후 : 초록수정 불가능, 일정확인 및 검색만 가능

제115회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Polymer-Based Photonic Crystals Replicated from DBR Porous Silicon

등록일
2015년 2월 26일 16시 35분 05초
접수번호
1501
발표코드
MAT.P-1185 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
4월 15일 (수요일) 16:00~19:00
발표형식
포스터
발표분야
재료화학
저자 및
공동저자
고광희, 손홍래*
조선대학교 화학과, Korea
Synthesis of nanostructured materials has emerged as a useful and versatile technique to provide the use of encoded materials for chemical and biological sensors, high throughput screening, and controlled release drug delivery. Since the discovery of porous silicon (PSi) from silicon wafer, research has been associated with emerging technologies, such as photonic crystals for optical band pass filters and micro chemical reaction applications in micro chemical and micro fuel cells. DBR PSi is an attractive candidate for building nanostructured composite materials because the porosity and average pore size can be tuned by adjusting the electrochemical preparation conditions that allow the construction of photonic crystals. DBR PSi can be generated by applying a computer generated two-distinct current densities. DBR PSi exhibits unique optical properties. The resulting DBR PSi films can be lifted off from the silicon substrate to obtain a free-standing DBR PSi films. For many applications, free-standing DBR PSi is limited by its chemical and mechanical stability because these free-standing films are very brittle. Here, we have prepared polymer replicas showing a desired reflectivity by the casting of polymer solution onto a porous silicon dioxide multilayer and provides the means for the construction of complex photonic structures with polymers. The photonic polymer replicas showing a desired reflectivity by casting of polymer solution onto a porous silicon dioxide multilayer have been prepared. The photonic polymer replicas are robust in ambient condition and exhibit an excellent reflectivity in their reflective spectra. The photonic band gaps of replicas are narrower than that of typical semiconductor quantum dots. The means for the construction of complex photonic structures with polymers have been provide. This work was supported by the Human Resource Training Program for Regional Innovation through the Ministry of Education and National Research Foundation of Korea (NRF-2012H1B8A2026282)

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