Journal
ORGANIC ELECTRONICS
Volume 12, Issue 12, Pages 2215-2224Publisher
ELSEVIER
DOI: 10.1016/j.orgel.2011.09.012
Keywords
Graphene; Poly(ionic liquid); Conducting polymer; Transparent conductive film; Hybrid composites
Funding
- InsCon Tech. Co. Ltd., Korea
- Korea Ministry of Environment
- Korea Environmental Industry & Technology Institute (KEITI) [GT-SWS-11-01-004-0] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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Hybrid materials of reduced graphene oxide (RG-O) and poly(3,4-ethylenedioxythiophene) (PEDOT) were prepared by poly(ionic liquid)-mediated hybridization. In this hybrid material, poly(ionic liquid)s (PILs) are found to be preferentially physisorbed onto the RG-O platelets, and allow them to be dispersed as a homogeneous colloidal system. In addition to the function as an effective stabilizer, the PIL also promotes PEDOT growth on RG-O platelets through favorable molecular interaction of PIL with PEDOT chains. The resulting material, a hybrid of RG-O and PEDOT showed an electrical conductivity of 18.8 S/cm at a RG-O loading of 0.3 wt.%, and its thin film on glass substrate showed a surface resistivity as low as 1.8 x 10(4) Omega/sq at an optical transmittance of 91.18%. (C) 2011 Elsevier B.V. All rights reserved.
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