Graphene Functionalisation with a Conjugated Poly(fluorene) by Click Coupling: Striking Electronic Properties in Solution

被引：77

作者：

Castelain, Marta ^{[1
,2
]}

Martinez, Gerardo ^{[2
]}

Merino, Pablo ^{[3
]}

Martin-Gago, Jose A. ^{[3
,4
]}

Segura, Jose L. ^{[1
]}

Ellis, Gary ^{[2
]}

Salavagione, Horacio J. ^{[2
]}

机构：

[1] Univ Complutense Madrid, Dept Quim Organ, Fac Quim, Madrid 28048, Spain

[2] CSIC, Dept Fis Polimeros Elastomeros & Aplicac Energet, Inst Ciencia & Tecnol Polimeros, E-28006 Madrid, Spain

[3] Ctr Astrobiol INTA CSIC, Madrid 28850, Spain

[4] Inst Ciencia Mat Madrid CSIC, Madrid 28049, Spain

来源：

CHEMISTRY-A EUROPEAN JOURNAL | 2012年 / 18卷 / 16期

关键词：

click chemistry; conjugated polymers; graphene; photoelectron spectroscopy; Raman spectroscopy; POLYMER PHOTOVOLTAIC CELLS; GRAPHITE OXIDE; SOLAR-CELLS; FILMS; CHEMISTRY; DEVICES; SPECTROSCOPY; POLYFLUORENE; TRANSISTORS; NANOSHEETS;

D O I：

10.1002/chem.201102008

中图分类号：

O6 [化学];

学科分类号：

070301 [无机化学];

摘要：

Graphene flakes covalently modified with a conjugated polymer, poly[(9,9-dihexylfluorene)-co-alt-(9,9-bis-(6-azidohexyl)fluorene)] (PFA), were efficiently synthesised by a Cu-catalysed Huisgen 1,3-dipolar cycloaddition between alkyne-modified graphene and an azide-functionalised polymer. Two approaches for the modification of graphene with alkyne groups were investigated (coupling with a diazonium salt generated in situ or an amidation reaction) and the optimum conditions determined. The success of the click-coupling approach was confirmed by FTIR, 1H NMR, Raman, and X-ray photoelectron spectroscopy (XPS). The absorption and emission spectra of the click product show a strong solvent dependency.

引用

页码：4965 / 4973

页数：9

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