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Issue 39, 2013
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Catalyst free novel synthesis of graphene and its application in high current OFET and phototransistor based on P3HT/G composite

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Abstract

High quality graphene is synthesized by pyrolysis of poly (acrylic acid) sodium salt, a novel catalyst-free cost-effective process. A strong Raman signature at 2698 cm−1 and a small defect (D) band (D/G ratio) confirm the high quality of the synthesized material. Analysis of the Raman parameters implies that it is a 1 or 2 layered material. This graphene is then used to make its composite with semiconducting polymer P3HT for evaluation as a channel in an organic thin film transistor (OTFT) application. The FET based on P3HT-G (composite) yields an order of magnitude high mobility as compared to the case of only P3HT and high current carrying ability. It also exhibits higher on/off ratio as compared to only graphene based TFTs. The P3HT-G composite based FETs are also shown to exhibit improved photo-response as compared to the only P3HT case.

Graphical abstract: Catalyst free novel synthesis of graphene and its application in high current OFET and phototransistor based on P3HT/G composite

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Publication details

The article was received on 07 May 2013, accepted on 18 Jul 2013 and first published on 19 Jul 2013


Article type: Paper
DOI: 10.1039/C3RA42243G
Citation: RSC Adv., 2013,3, 18049-18054
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    Catalyst free novel synthesis of graphene and its application in high current OFET and phototransistor based on P3HT/G composite

    P. Yadav, C. Chanmal, A. Basu, L. Mandal, J. Jog and S. Ogale, RSC Adv., 2013, 3, 18049
    DOI: 10.1039/C3RA42243G

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