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  • 02월 20일 17시 이후 : 초록수정 불가능, 일정확인 및 검색만 가능

제113회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Optical and Electrical Properties of Semiconductor Nanocrystal Solids

등록일
2014년 2월 24일 10시 48분 38초
접수번호
1427
발표코드
PHYS2-6 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
목 15시 : 30분
발표형식
심포지엄
발표분야
물리화학 - Physical Chemistry at the Nanoscale
저자 및
공동저자
심은지
연세대학교 화학과, Korea
We investigate the optical and electrical properties of semiconductor nanocrystal solids. A new formula is introduced for predicting the carrier mobility of nanocrystal arrays as a function of the properties of quantum dots and capping ligands. As the quantum dot size decreases to a nanometer scale, conventional theories that are developed for bulk systems, such as Fermi’s Golden rule and Marcus theory, fail to provide the correct trend of size-dependent rate constants. We discuss the non-monotonic electron and hole mobility trend in nanocrystal arrays, where non-monotonic behavior has been observed. Control of carrier mobility is crucial for application of nanocrystal solids and, thus, it is important to define the crossover diameter, where the carrier mobility reaches its maximum, with respect to the system properties. We also discuss optical properties of quantum dots that are contrary to the common understanding of band gap and size dependence.

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