Synthesis, non-linear optical and electrical properties of poly(2-alkoxy-1,4-phenylene-vinylene)'s폴리(2-알콕시-1,4-페닐렌비닐렌)들의 합성과 비선형광학 특성 및 전기적 특성에 관한 연구

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A series of poly(2-alkoxy-1,4-phenylenevinylene)``s was synthesized by processible precursor method. In this thesis, three poly(p-phenylenevinylene) (PPV) derivatives were included, poly(2-methoxy-1,4-phenylenevinylene) (PMPV), poly(2-butoxy-1,4-phenylenevinylene) (PBPV) and poly(2-dodecyloxy-1,4-phenylenevinylene). These polymers were characterized using UV-Visible-NIR, FT-IR spectroscopy and DSC, TGA thermal analyzer. The third order nonlinear optical susceptibilities of the polymers were determined using third harmonic generation (THG) method at 1907 nm. Measured third order NLO coefficients are $10^{-11}\,10^{-12$ esu order and as the side chain length is increased, the third order NLO coefficient is decreased because of the side chain effect on conjugation and of volume fraction. The conductivities of the polymers were measured by four-probe method. These polymers were doped with both $FeCl_3$ and $I_2$, and the maximum conductivities ranged between $10^\circ$ and $10^{-1}$ S/cm. The conductivity is decreased, as the side chain length is increased. Photoluminescence spectra of the polymers were obtained in the search for new materials for light emitting devices. The emitting wavelength range of these materials is from 530 nm to 630 nm(yellow-red color).
Advisors
Shim, Hong-Kuresearcher심홍구researcher
Description
한국과학기술원 : 화학과,
Publisher
한국과학기술원
Issue Date
1994
Identifier
69187/325007 / 000923378
Language
eng
Description

학위논문(석사) - 한국과학기술원 : 화학과, 1994.2, [ 54 p. ]

URI
http://hdl.handle.net/10203/32674
Link
http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=69187&flag=dissertation
Appears in Collection
CH-Theses_Master(석사논문)
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