Fabrication and analysis of concentric gold nanoring arrays with sub-10 nm gap for Surface-Enhanced Raman Scattering effect = 정렬된 동심원 금 나노구조체의 제조 및 표면 증강 라만 산란 효과에 관한 연구

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Surface-Enhanced Raman Scattering (SERS) has been widely used to characterize molecular structure and detect single molecule. Several metal nanostructures such as nano-hole, nanogap have been proposed to maximize plasmonic properties and sensitivity. The most important issue for real SERS application is fabrication of sub-10 nm nanogap with well-defined and large-area uniformity. To develop more efficient sensor, designing of near-field localization properties of plasmonic nanostructures is another key factor. In this thesis, we introduce a reproducible and highly-throughput method to make sub-10 nm gap array with ultra-high density and precise gap size control by combining colloidal lithography and directed self-assembly of block copolymers (BCPs). With this method, we fabricated near-field focusing concentric geometric nanoring pattern with sub-10 nm plasmonic gaps. In addition, by controlling the total molecular weight of block copolymers (BCPs) and nano-sphere diameter, the gap distance and near-field focusing properties are maximized. Sur-face-enhanced Raman scattering (SERS) measurements show that concentric nanofocusing structure with sub-10 nm gap arrays has advantage for practical applications.
Advisors
Jung, Yeon-Sikresearcher정연식
Description
한국과학기술원 : 신소재공학과,
Publisher
한국과학기술원
Issue Date
2014
Identifier
569132/325007  / 020123322
Language
eng
Description

학위논문(석사) - 한국과학기술원 : 신소재공학과, 2014.2, [ vii, 59 p. ]

Keywords

Surface Enhanced Raman Scattering(SERS); 자기조립; 금나노구조체; 비대칭 에칭; 블록공중합체; 표면증강라만산란효과; Block copolymer; Anisotropic etching; Gold nanostrucutre; Colloidal lithography; Directed self-assembly

URI
http://hdl.handle.net/10203/197384
Link
http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=569132&flag=dissertation
Appears in Collection
MS-Theses_Master(석사논문)
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