Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/93688
Title: Electrically conductive and fluorescent poly [1,4-bis(3-alkyl-2-thienyl)phenylenes]: Syntheses and preliminary characterization aspects
Authors: Ng, S.C. 
Xu, J.M.
Chan, H.S.O. 
Keywords: Fluorescence quantum yield
Poly [1,4-bis(3-alkyl-2-thienyl)phenylene] : Conductivity
Thermal stability
Issue Date: 15-Jan-1998
Citation: Ng, S.C.,Xu, J.M.,Chan, H.S.O. (1998-01-15). Electrically conductive and fluorescent poly [1,4-bis(3-alkyl-2-thienyl)phenylenes]: Syntheses and preliminary characterization aspects. Synthetic Metals 92 (1) : 33-37. ScholarBank@NUS Repository.
Abstract: A series of polymers containing alternating phenylene and symmetrically substituted bithiophene repeat units have been synthesized and characterized using UV-Vis absorption spectroscopy, fluorescence emission spectroscopy, conductivity measurement and thermal analyses. The results reveal that the polymers have a bandgap energy of 2.5 eV and a fluorescence quantum yield of up to 26% with respect to quinine sulfate. The polymers show a maximum conductivity of 0.2 S cm-1 upon doping with I2 and display good thermal stability in both neutral and doped states. The influence of alkyl chain size on conductivity, spectral behavior and thermal stability is discussed. © 1998 Elsevier Science S.A.
Source Title: Synthetic Metals
URI: http://scholarbank.nus.edu.sg/handle/10635/93688
ISSN: 03796779
Appears in Collections:Staff Publications

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