Confined organization of fullerene units along high polymer chains

被引：16

作者：

Fang, Lei ^{[1
]}

Liu, Peng ^{[2
]}

Sveinbjornsson, Benjamin R. ^{[3
]}

Atahan-Evrenk, Sule ^{[4
]}

Vandewal, Koen ^{[5
]}

Osuna, Silvia ^{[2
]}

Jimenez-Oses, Gonzalo ^{[2
]}

Shrestha, Supriya ^{[4
]}

Giri, Gaurav ^{[1
]}

Wei, Peng ^{[1
]}

Salleo, Alberto ^{[5
]}

Aspuru-Guzik, Alan ^{[4
]}

Grubbs, Robert H. ^{[3
]}

Houk, K. N. ^{[2
]}

Bao, Zhenan ^{[1
]}

机构：

[1] Stanford Univ, Dept Chem Engn, Stanford, CA 94305 USA

[2] Univ Calif Los Angeles, Dept Chem & Biochem, Los Angeles, CA 90095 USA

[3] CALTECH, Div Chem & Chem Engn, Pasadena, CA 91125 USA

[4] Harvard Univ, Dept Chem & Chem Biol, Cambridge, MA 02138 USA

[5] Stanford Univ, Dept Mat Sci & Engn, Stanford, CA 94305 USA

来源：

JOURNAL OF MATERIALS CHEMISTRY C | 2013年 / 1卷 / 36期

基金：

美国国家科学基金会;

关键词：

DIBLOCK COPOLYMERS; C-60; TRANSPORT; POLYTHIOPHENE; PERFORMANCE; ELECTRON; MOBILITY; ORDER; PCBM;

D O I：

10.1039/c3tc31158a

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Conductive fullerene (C-60) units were designed to be arranged in one dimensional close contact by locally organizing them with covalent bonds in a spatially constrained manner. Combined molecular dynamics and quantum chemical calculations predicted that the intramolecular electronic interactions (i.e. charge transport) between the pendant C-60 units could be controlled by the length of the spacers linking the C-60 units and the polymer main chain. In this context, C-60 side-chain polymers with high relative degrees of polymerization up to 1220 and fullerene compositions up to 53% were synthesized by ruthenium catalyzed ring-opening metathesis polymerization of the corresponding norbornene-functionalized monomers. UV/vis absorption and photothermal deflection spectra corroborated the enhanced interfullerene interactions along the polymer chains. The electron mobility measured for the thin film field-effect transistor devices from the polymers was more than an order of magnitude higher than that from the monomers, as a result of the stronger electronic coupling between the adjacent fullerene units within the long polymer chains. This molecular design strategy represents a general approach to the enhancement of charge transport properties of organic materials via covalent bond-based organization.

引用

页码：5747 / 5755

页数：9

共 58 条

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