Synthesis and luminescence properties of orange-red light-emitting polymers적색계 발광 고분자의 합성 및 발광 특성에 관한 연구

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dc.contributor.advisorShim, Hong-Ku-
dc.contributor.advisor심홍구-
dc.contributor.authorKo, Seung-Won-
dc.contributor.author고승원-
dc.date.accessioned2011-12-13T04:29:32Z-
dc.date.available2011-12-13T04:29:32Z-
dc.date.issued2002-
dc.identifier.urihttp://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=177235&flag=dissertation-
dc.identifier.urihttp://hdl.handle.net/10203/31596-
dc.description학위논문(박사) - 한국과학기술원 : 화학과, 2002.8, [ vi, 163 p. ]-
dc.description.abstractA series of 2,5-dialkoxy substituted poly(1,4-phenylenevinylene) derivatives containing a rigid and bulky cyclohexyl group on the arylene ring, poly[2-(7-cyclohexylheptyloxy)-5-butoxy-1,4-phenylenevinylene] ($PBC_yH_pPV$), Poly[2-(6-cyclohexyl methoxy hexyloxy)-5-butoxy-1,4-phenylenevinylene] ($PBC_yH_xPV$), Poly[2,5-bis-(6-cyclohexylmethoxy-hexyloxy)-1,4-phenylenevinylene] ($PDC_yH_x PV$) were synthesized through Gilch polymerization route. The synthesized polymers showed good solubility in common organic solvents and good thermal stability up to 370℃. The maximum absorption peaks of the thin films made from $PBC_yH_pPV$, $PBC_yH_xPV$ and $PDC_yH_xPV$ were at 513 nm, 515 nm and 511 nm, respectively. Photoluminesence (PL) maximum emission peaks of above polymers appeared at 590 nm, 597 nm, 590 nm, respectively. The electroluminescence (EL) properties were studied through EL spectra, current-luminance-voltage characteristics. The EL maximum peaks of the synthesized polymers appeared at 585 nm, 590 nm, and 590 nm, respectively. But these polymers common to all showed another shoulder peak around 630 nm strongly. $PDC_yH_xPV$ showed the highest EL efficiency and EL power than the others due to the dilution effect by two rigid and bulky cyclohexyl groups. Novel poly(p-phenylenevinylene) derivatives with an electron-withdrawing cyanophenyl group on the polymer backbone, poly[2-(2’-ethylhexyloxy)-5-(4’-cyanophenyl)-1,4-phenylenevinylene] (PEHCNPV) and poly[2-dimethyloctyl-silyl-5-(4’-cyanophenyl)-1,4-phenylenevinylene] (PSi8CNPV), were synthesized via the Gilch polymerization. These polymers were completely soluble in common organic solvents and showed good thermal stability up to 400℃. Surprisingly, they showed very high glass transition temperatures (above 180℃), indicating that electroluminescenece (EL) devices constructed from these polymers should have good thermal stability. The presence of the electron-withdrawing cyanophenyl group lowered the HOMO and LUMO...eng
dc.languageeng-
dc.publisher한국과학기술원-
dc.subjectpure green-
dc.subjectelectron-withdrawing-
dc.subjectenergy transger-
dc.subjectLEDs-
dc.subjectpure led-
dc.subject순수적색-
dc.subject순수녹색-
dc.subject전자끌게-
dc.subject에너지전이-
dc.subject발광소자-
dc.titleSynthesis and luminescence properties of orange-red light-emitting polymers-
dc.title.alternative적색계 발광 고분자의 합성 및 발광 특성에 관한 연구-
dc.typeThesis(Ph.D)-
dc.identifier.CNRN177235/325007-
dc.description.department한국과학기술원 : 화학과, -
dc.identifier.uid000985801-
dc.contributor.localauthorShim, Hong-Ku-
dc.contributor.localauthor심홍구-
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