Study of 2D microstructure of ultrathin PEG-DMPE / DMPC film on solid substrates using AFM = AFM을 이용한 ultrathin PEG- DMPE / DMPC film의 2D microstructure연구

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The 2-dimenional microstructure of a ultrathin film of DMPC and PEG-DMPE mixtures has been studied by using Atomic Force Microscope(: AFM). The composition of the binary mixture is a parameter to classify the films in terms of the fractal dimension, volume and mean height, and the characteristic pattern size. Films were prepared with a Langmuir-Blodgett(LB) technique and a spincoating technique. The topographic images show both quasi-circular and finger-like patterns. The 2D Fourier Transform analysis was used to find the characteristic wave vector of the patterns. The results show the ring shape, which indicates the similarity with a spinodal decomposition in a phase separation. Furthermore, the characteristic size $1/k_m$ was determined from the power spectral density corresponding to the radial part of 2D Fourier Transform of the AFM height profiles.
Advisors
Kim, Mahn-Wonresearcher김만원researcher
Description
한국과학기술원 : 물리학과,
Publisher
한국과학기술원
Issue Date
2000
Identifier
158089/325007 / 000983595
Language
eng
Description

학위논문(석사) - 한국과학기술원 : 물리학과, 2000.2, [ 39 p. ]

Keywords

AFM; 프랙탈차원; 상분리; 인지질; 원자힘현미경; Fractal dimension; Phase separation; PEG-DMPE; DMPC

URI
http://hdl.handle.net/10203/48541
Link
http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=158089&flag=dissertation
Appears in Collection
PH-Theses_Master(석사논문)
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