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  • 03월 05일 13시 이후 : 초록수정 불가능, 일정확인 및 검색만 가능

제105회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Single-walled carbon nanotube three-dimensional networks: Synthesis and applications for photovoltaic devices

2010년 2월 3일 11시 09분 58초
금27H3구 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
금 14시 : 50분
물리화학 - 물리화학에서의 최근 연구
저자 및
이태재, 서정은1, 민선기1, 이문근1, 여해구1, 이하진2, 이해원1, 한성환1
한양대학교 나노과학기술연구소, Korea
1한양대학교 화학과, Korea
2한국기초과학지원연구원 전주센터, Korea
Carbon nanotubes (CNTs) are an ideal electrode material because of their good conductivity, high aspect ratio with nano-sized diameters, and strong chemical and physical hardnesses. Therefore, CNTs can be used for efficient nano-electrodes in sensors, photo-electronic devices, and alternative sources of energy including solar-cell and fuel-cell applications. Here, we suggest an advanced three-dimensional (3D) electrode structure which consists of high-density single-walled carbon nanotube (SWNT) 3D networks (-3DNs) and a 3D-structured Si pillar template. A Si pillar template was prepared by a deep Si etching process, and the SWNT-3DNs were synthesized over the Si pillars by thermal chemical vapor deposition. Then, a sandwich-type photoelectrochemical (PEC) cell was fabricated by coating the SWNT-3DNs with a quantum dot (QD). SEM, TEM, and Raman analysis was used to characterize the SWNT-3DNs. The results confirmed that the high-density SWNT-3DNs assure the maximum effective density of SWNTs in the confined area of the template. Coating the 3D surface of SWNT-3DNs with functional materials is much important to extend the application fields of SWNT-3DNs. We will also discuss about coating SWNT-3DNs with functional materials by various techniques including an electrochemical deposition and an atomic layer deposition. We expect that the SWNT-3DNs will be useful for fabricating highly efficient nano-electrodes having a large active surface area with the desired spacing.