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Yuchi Fan, Wan Jiang and Akira Kawasaki Highly Conductive Few-Layer Graphene/Al2O3 Nanocomposites with Tunable Charge Carrier Type Advanced Functional Materials 22

Version of Record online: 29 MAY 2012 | DOI: 10.1002/adfm.201200632

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Few-layer graphene/Al2O3 nanocomposites with good electrical conductivity are prepared by using a titration method followed by spark plasma sintering. It is found that the charge carrier type changes from p-type to n-type as graphene content becomes higher. This conversion is deduced to be related to the doping effect induced by Al2O3 matrix and is thickness- dependent with respect to few-layer graphene.

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