Synthesis and electrochemical characterization of a new polymer constituted of alternating carbazole and oxadiazole moieties

Hong Meng, Zhi Kuan Chen, Wang Lin Yu, Jian Pei, Xiao Ling Liu, Yee Hing Lai, Wei Huang

Research output: Contribution to journalArticlepeer-review

32 Scopus citations

Abstract

We report herein the synthesis and electrochemical characterization of a novel copolymer containing an electron rich carbazole moiety and an electron deficient oxadiazole unit - poly[N-(2′-ethylhexyl)-carbazole-3,6- diyl-1″,3″,4″-oxadiazole-2″,5″-diyl] (PCO). PCO can be dissolved in THF, CHCl3, xylene, and DMSO. The structure of the polymer is confirmed by FT-IR, NMR and elemental analysis. The optical and electronic properties of the polymer are investigated by UV-Vis absorption spectroscopy and photoluminescence spectroscopy as well as cyclic voltammetry. The results show that the polymer films emit greenish-blue light (λmax 485 nm) upon UV excitation. Both p-doping and n-doping processes are observed in cyclic voltammetric investigation. A comparison between the properties of polycarbazole and polycarbazole-oxadiazole has been presented.

Original languageEnglish
Pages (from-to)297-301
Number of pages5
JournalSynthetic Metals
Volume100
Issue number3
DOIs
StatePublished - 26 Apr 1999
Externally publishedYes

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