서지주요정보
공액 고분자의 발광 특성에 관한 연구 = Photoluminescence characteristics of conjugated polymers
서명 / 저자 공액 고분자의 발광 특성에 관한 연구 = Photoluminescence characteristics of conjugated polymers / 이석주.
저자명 이석주 ; Lee, Seok-Joo
발행사항 [대전 : 한국과학기술원, 1997].
Online Access 원문보기 원문인쇄

소장정보

등록번호

8007310

소장위치/청구기호

학술문화관(문화관) 보존서고

MPH 97020

SMS전송

도서상태

이용가능

대출가능

반납예정일

초록정보

In this thesis photoluminescence(PL) characteristics of conjugated polymers, poly(3,6-N-2-ethyhexyl carbazolyl cyano-terephthalidene) (Polymer 1), poly(3,6-N-2-ethyhexyl carbazolyl p-hexane-dioxy-cyano -4-biphenylidene)(Polymer 2), poly(2-ethynyl N-propargyl pyridinium bromide)(Polymer A), and poly(2-ethynyl N-propargyl pyridinium tosylate)(Polymer B) were studied. And the optical properties of poly (vinylcarbazole) were also investigated and compared with Polymer 1 and Polymer 2. At room temperature, Polymer 1 and Polymer 2 show PL peaks near 2.36 eV and 2.54 eV, respectively. Due to the shortened conjugation length by the nonconjugated spacer group, the energy of PL of Polymer 2 is higher than that of Polymer 1. The shapes of PL spectra of both polymers are highly asymmetric with a long tail in the low energy region, which is considered due to the excimer emission. As the temperature increases, the PL intensity of Polymer 2 decreases and the peak shifts a little to higher energy. But the overall shape of the spectra does not change with the temperature variation. This difference from poly (vinylcarbazole) which has a new emission peak due to the high energy excimer with decreasing temperature shows that there is no emission due to another kind of excimer. Polymer A and Polymer B show PL peaks near 2.36eV and 2.54eV, respectively. The PL peak of Polymer B shifts to higher energy due to the larger size of tosylate anion than that of bromine, which increases the steric hindrance between substituents, and so decreases the conjugation length. Temperature dependence of PL spectra in Polymer A and Polymer B is similar to that in Polymer 2.

서지기타정보

서지기타정보
청구기호 {MPH 97020
형태사항 iii, 59 p. : 삽도 ; 26 cm
언어 한국어
일반주기 저자명의 영문표기 : Seok-Joo Lee
지도교수의 한글표기 : 김재은
지도교수의 영문표기 : Jae-Eun Kim
학위논문 학위논문(석사) - 한국과학기술원 : 물리학과,
서지주기 참고문헌 : p. 57-59
주제 공액 고분자
광발광
광흡수
켤레짓기 길이
엑시머
Conjugated polymers
Photoluminescence
Absorption
Conjugation length
Excimer
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