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  • 02월 22일 16시 이후 : 초록수정 불가능, 일정확인 및 검색만 가능

Effect of Electron Density on Vibrational Frequency and Bandwidth of TiO32- Molecular Wire in ETS-10

등록일
2008년 2월 12일 15시 11분 25초
접수번호
0997
발표코드
금34K4구 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
금 15시 : 00분
발표형식
구두발표
발표분야
재료화학
저자 및
공동저자
정낙천, 이영주, 윤경병
서강대학교 화학과,
Among various 1D quantum-confined semiconductor materials molecular wires are the genuine and ultimate 1D semiconductor materials to be used as building blocks for nanoscale electronic devices. Thus, the elucidation of the effect of the charge-transfer interaction between the environments and molecular wires which significantly affects the physical properties of the molecular wires is of great importance. However, such effects have been studied and elucidated only from SWNTs. ETS-10 is a unique zeolite which contains a 3D array of titanate molecular wires with the diameter of 0.67 nm imbedded in a nanoporous silica insulating matrix. Even in this case, however, the effect of the charge-transfer interaction between the environments and molecular wires has not been known. Herein we report for the first time the elucidation of the effect of the electron density change in the titanate molecular wire of ETS-10 on its vibrational frequency and bandwidth. The amounts of frequency shift and bandwidth change are incomparably larger than those observed from semiconducting SWNTs.

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