Room-temperature discotic liquid-crystalline coronene diimides exhibiting high charge-carrier mobility in air

被引：106

作者：

An, Zesheng ^{[2
,3
]}

Yu, Junsheng ^{[1
,2
]}

Domercq, Benoit ^{[1
,2
]}

Jones, Simon C. ^{[2
,3
]}

Barlow, Stephen ^{[2
,3
]}

Kippelen, Bernard ^{[1
,2
]}

Marder, Seth R. ^{[2
,3
]}

机构：

[1] Georgia Inst Technol, Sch Elect & Comp Engn, Atlanta, GA 30332 USA

[2] Georgia Inst Technol, Ctr Organ Photon & Elect, Atlanta, GA 30332 USA

[3] Georgia Inst Technol, Sch Chem & Biochem, Atlanta, GA 30332 USA

来源：

JOURNAL OF MATERIALS CHEMISTRY | 2009年 / 19卷 / 37期

基金：

美国国家科学基金会;

关键词：

THIN-FILM TRANSISTORS; CHANNEL ORGANIC SEMICONDUCTORS; HIGH-ELECTRON-MOBILITY; SPACE-CHARGE; MESOMORPHIC PROPERTIES; SELF-ORGANIZATION; PERYLENE DIIMIDES; BISIMIDE DYES; HOLE MOBILITY; TRANSPORT;

D O I：

10.1039/b910898j

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Six N,N',5,11-tetrasubstituted coronene-2,3,8,9-tetracarboxydiimides have been synthesised incorporating 3,4,5-tri(n-dodecyloxy) phenyl or 2-(n-decyl)-n-tetradecyl groups in various positions. Differential scanning calorimetry, polarised optical microscopy, and X-ray diffraction indicate that all form columnar discotic mesophases from around room temperature to around 200 degrees C. Charge-carrier mobility values, which energetic considerations suggest are electron mobility values, have been determined in non-aligned samples cooled from the isotropic melt using the space-charge-limited current technique. The highest mobility, 6.7 cm(2) V-1 s(-1), was found in N,N'-bis(n-2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-pentadecylfluorooctyl)-5,11-bis(3-[{3,4,5-tri(n-dodecyloxy)phenyl} carbonyloxy]-n-propyl) coronene-2,3,8,9-tetracarboxydiimide, which X-ray diffraction suggests is the most highly ordered of the materials examined.

引用

页码：6688 / 6698

页数：11

共 82 条

[1] Design of near-infrared dyes based on π-conjugation system extension 2.: Theoretical elucidation of framework extended derivatives of perylene chromophore [J].