abs

학술발표회초록보기

초록문의 abstract@kcsnet.or.kr

결제문의 member@kcsnet.or.kr

현재 가능한 작업은 아래와 같습니다.
  • 02월 26일 17시 이후 : 초록수정 불가능, 일정확인 및 검색만 가능

제115회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Enhanced Photophysical Properties of Semiconductor Nanostructures by Surface Plasmons

등록일
2015년 2월 26일 16시 00분 57초
접수번호
1492
발표코드
KCS2.O-8 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
목 11시 : 00분
발표형식
구두발표
발표분야
Oral Presentation for Young International Chemists
저자 및
공동저자
Saji Thomas, 김동하*
이화여자대학교 화학나노과학과, Korea

Since plasmonic metal nanostructures possess the unique characteristic to interact with visible light through excitation of surface plasmons (SPs), inclusion of plasmonic metal onto semiconductors is a facile strategy to improve the photophysical properties of semiconductor by the transfer of energy or charge from the metal to the semiconductor. The luminescence of semiconductors can be significantly enhanced by incorporating plasmonic metal nanoparticles (NPs) appropriately. Reduction of defect emission (DE) and enhancement of band emission of ZnO can be achieved by incorporating Au NPs on ZnO. Since energy of defect emission (DE) and surface plasmon absorption energy of Au are overlapped, SPs of Au can be excited using the energy of DE, and thus formed energetic electrons in Au are transferred to the conduction band of ZnO leading to the enhancement in the recombination of excitons (Figure 1a-b). Similarly, Förster resonance energy transfer (FRET) efficiency can be enhanced by placing Au at an appropriate distance from the donor, and the enhanced emission energy of donor can be transferred to the acceptor, resulting in an overall enhancement in the FRET efficiency (Figure 2a-b).


상단으로