Photoreactive hole-transporting polymer bearing oxetane moieties and its application to green polymer light-emitting diodes
- Authors
- Cho, Min Ju; Kim, Myung Hee; Kim, Kyu Nam; Jin, Jung-Il; Kim, Young Min; Park, Young Wook; Ju, Byeong-Kwon; Choi, Dong Hoon
- Issue Date
- 12월-2008
- Publisher
- ELSEVIER SCIENCE SA
- Keywords
- Photoreactive; Carbazole; Hole-transport materials; Cationic photopolymerization
- Citation
- SYNTHETIC METALS, v.158, no.21-24, pp.785 - 789
- Indexed
- SCIE
SCOPUS
- Journal Title
- SYNTHETIC METALS
- Volume
- 158
- Number
- 21-24
- Start Page
- 785
- End Page
- 789
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/122304
- DOI
- 10.1016/j.synthmet.2008.05.004
- ISSN
- 0379-6779
- Abstract
- A new hole-transporting polymer was prepared by the copolymerization of 9-(4-vinylbenzyl)-9H-carbazole and 3-methyl-3-(4-vinyl-benzyloxymethyl)-oxetane in the presence of alpha,alpha'-azobisisobutyronitrile (AIBN). The latter contains an oxetane unit that is cationically photopolymerizable. It was characterized by NMR, GPC, IR spectroscopy, TGA, and differential scanning calorimetry (DSC). Multilayer polymer light-emitting diodes (PLEDs) were fabricated layer by layer by using the spin-coating method with an organic solution of a photoreactive copolymer. Organic soluble poly[2-(carbazol-9-yl)-5-(2-ethylhexyloxy)-1,4-phenylenevinylene] (CzEh-PPV) that carries hole-transporting carbazole pendants was also synthesized and employed as a green-emitting material in PLEDs. After UV illumination for photoreaction in the new photoreactive oxetane-based copolymer (VCz-Ox), we could spin coat the CzEh-PPV solution for the next layer. The hole-transport capability of the copolymer was evaluated in multilayer PLEDs that were fabricated to test the device performances. (C) 2008 Elsevier B.V. All rights reserved.
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Collections - College of Engineering > School of Electrical Engineering > 1. Journal Articles
- College of Science > Department of Chemistry > 1. Journal Articles
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