A Chemically Doped Naphthalenediimide-Bithiazole Polymer for n-Type Organic Thermoelectrics

被引：166

作者：

Wang, Suhao ^{[1
]}

Sun, Hengda ^{[1
]}

Erdmann, Tim ^{[2
,3
,4
,9
]}

Wang, Gang ^{[5
,6
]}

Fazzi, Daniele ^{[7
,10
]}

Lappan, Uwe ^{[3
]}

Puttisong, Yuttapoom ^{[8
]}

Chen, Zhihua ^{[4
]}

Berggren, Magnus ^{[1
]}

Crispin, Xavier ^{[1
]}

Kiriy, Anton ^{[2
,3
]}

Voit, Brigitte ^{[2
,3
]}

Marks, Tobin J. ^{[5
,6
]}

Fabiano, Simone ^{[1
,4
,5
,6
]}

Facchetti, Antonio ^{[4
,5
,6
]}

机构：

[1] Linkoping Univ, Dept Sci & Technol, Lab Organ Elect, SE-60174 Norrkoping, Sweden

[2] Tech Univ Dresden, Ctr Advancing Elect Dresden, D-01062 Dresden, Germany

[3] Leibniz Inst Polymerforsch Dresden eV, D-01069 Dresden, Germany

[4] Flexterra Corp, 8025 Lamon Ave, Skokie, IL 60077 USA

[5] Northwestern Univ, Dept Chem, 2145 Sheridan Rd, Evanston, IL 60208 USA

[6] Northwestern Univ, Mat Res Ctr, 2145 Sheridan Rd, Evanston, IL 60208 USA

[7] Max Planck Inst Kohlenforsch, Kaiser Wilhelm Pl 1, D-45470 Mulheim, Germany

[8] Linkoping Univ, Dept Phys Chem & Biol, SE-58183 Linkoping, Sweden

[9] IBM Almaden Res Ctr, 650 Harry Rd, San Jose, CA 95120 USA

[10] Univ Cologne, Dept Chem, Inst Phys Chem, Luxemburger Str 116, D-50939 Cologne, Germany

来源：

ADVANCED MATERIALS | 2018年 / 30卷 / 31期

基金：

瑞典研究理事会;

关键词：

donor-acceptor polymers; doping; NDI-based polymers; n-type polymers; organic thermoelectrics; CHARGE-TRANSPORT; HIGH-PERFORMANCE; CONDUCTING POLYMERS; CONJUGATED POLYMERS; ELECTRON-MOBILITY; MOLECULAR DESIGN; SOLAR-CELLS; TRANSISTORS; DIIMIDE; SEMICONDUCTORS;

D O I：

10.1002/adma.201801898

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The synthesis of a novel naphthalenediimide (NDI)-bithiazole (Tz2)-based polymer [P(NDI2OD-Tz2)] is reported, and structural, thin-film morphological, as well as charge transport and thermoelectric properties are compared to the parent and widely investigated NDI-bithiophene (T2) polymer [P(NDI2OD-T2)]. Since the steric repulsions in Tz2 are far lower than in T2, P(NDI2OD-Tz2) exhibits a more planar and rigid backbone, enhancing p-p chain stacking and intermolecular interactions. In addition, the electron-deficient nature of Tz2 enhances the polymer electron affinity, thus reducing the polymer donor-acceptor character. When n-doped with amines, P(NDI2OD-Tz2) achieves electrical conductivity (approximate to 0.1 S cm(-1)) and a power factor (1.5 mu W m(-1) K-2) far greater than those of P(NDI2OD-T2) (0.003 S cm(-1) and 0.012 mu W m(-1) K-2, respectively). These results demonstrate that planarized NDI-based polymers with reduced donor-acceptor character can achieve substantial electrical conductivity and thermoelectric response.

引用

页数：6

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