Large-scale networking of metal/semiconductor nanoheterostructure = 금속/반도체 이종구조 나노재료의 대면적 네트워킹

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Metal/Semiconductor heterostructures have been researched for a long time due to their unique property arising from the difference of energy level. Nevertheless, the interface between metal and semiconductor formed in nanoscale is not understood since optimized metal/semiconductor nanoheterostructure for electric measurements is difficult to be synthesized. In this paper, we successfully fabricated continuous networking of CdSe nanorods anchored via nanosized gold tips. This network had a nano-scale thickness corresponding to a diameter of CdSe nanorod and could be laterally expanded to micro-scale. The assembled structure can be controlled with slow network kinetic by combination of CSA(Conductive Self Assembly) and DLA(Diffusion Limited Aggregation). To the best of our knowledge, 2-dimensional metal/semiconductor nanoheterostructured assembly is firstly induced in this paper. We expect this network will be vigorously applied in many field such as optoelectronic or photovoltaic applications. During networking, end-to-end fusion of gold tips competed with side-by-side vanderwaals interaction. This interaction competition will be studied more deeply later.
Advisors
Lee, Doh-Changresearcher이도창
Description
한국과학기술원 : 생명화학공학과,
Publisher
한국과학기술원
Issue Date
2014
Identifier
568927/325007  / 020123062
Language
eng
Description

학위논문(석사) - 한국과학기술원 : 생명화학공학과, 2014.2, [ vi, 46 p. ]

Keywords

metal/semiconductor heterostructure; 유한확신집합체; 대류자기조립; 2차원 네트워크; 금속/반도체 헤테로 구조; diffusion-limited aggregation; 2-dimensional network; convective self-assembly

URI
http://hdl.handle.net/10203/196258
Link
http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=568927&flag=dissertation
Appears in Collection
CBE-Theses_Master(석사논문)
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