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Issue 16, 2011
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Facile synthesis of organo-soluble surface-grafted all-single-layer graphene oxide as hole-injecting buffer material in organic light-emitting diodes

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Abstract

Graphene oxide (GO) was modified by surface grafting and the product P-GO exhibited a surprisingly good solubility in common solvents (as high as 1.8 mg mL−1 in DMF) without sonication and can be spin coated to form large single-layer sheets on a substrate. In contrast to GO, all-single-layer P-GO sheets are readily formed in solution, which are highly useful for separation from other multi-layer sheets and as precursors to all-single-layer graphene. The unique property of single-layer P-GO made it a promising functional material, such as hole-injecting buffer (HIB) material in organic light-emitting devices. The devices using P-GO as a hole-injecting buffer layer on the ITO electrode perform better than those with PEDOT:PSS.

Graphical abstract: Facile synthesis of organo-soluble surface-grafted all-single-layer graphene oxide as hole-injecting buffer material in organic light-emitting diodes

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Publication details

The article was received on 05 Jan 2011, accepted on 16 Feb 2011 and first published on 14 Mar 2011


Article type: Paper
DOI: 10.1039/C1JM00044F
Citation: J. Mater. Chem., 2011,21, 6040-6045
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    Facile synthesis of organo-soluble surface-grafted all-single-layer graphene oxide as hole-injecting buffer material in organic light-emitting diodes

    Z. Zhong, Y. Dai, D. Ma and Z. Y. Wang, J. Mater. Chem., 2011, 21, 6040
    DOI: 10.1039/C1JM00044F

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