Small band gap polymers based on diketopyrrolopyrrole

被引：143

作者：

Zoombelt, Arjan P. ^{[1
,2
]}

Mathijssen, Simon G. J. ^{[1
]}

Turbiez, Mathieu G. R. ^{[3
]}

Wienk, Martijn M. ^{[1
]}

Janssen, Rene A. J. ^{[1
]}

机构：

[1] Eindhoven Univ Technol, NL-5600 MB Eindhoven, Netherlands

[2] Dutch Polymer Inst, NL-5600 AX Eindhoven, Netherlands

[3] BASF, CH-4002 Basel, Switzerland

来源：

JOURNAL OF MATERIALS CHEMISTRY | 2010年 / 20卷 / 11期

关键词：

HETEROJUNCTION SOLAR-CELLS; OPEN-CIRCUIT VOLTAGE; BULK-HETEROJUNCTION; PHOTOVOLTAIC PROPERTIES; CONJUGATED POLYMERS; EFFICIENCY; PERFORMANCE; MORPHOLOGY; COPOLYMERS; DEVICES;

D O I：

10.1039/b919066j

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：

New small band gap polymers incorporating diketopyrrolopyrrole units have been synthesized using Suzuki and Yamamoto polymerization. By alternating the electron-deficient diketopyrrolopyrrole units with different electron-rich aromatic segments, polymers were obtained with band gaps ranging from 1.24 to 1.77 eV in thin films. In field-effect transistors these polymers exhibit ambipolar charge transport with hole and electron mobilities up to 2.1 x 10(-3) cm(2)/Vs and 1.6 x 10(-4) cm(2)/Vs, respectively. The polymers were applied as electron donor in bulk heterojunction solar cells with [60] PCBM as electron acceptor to give a maximum power conversion efficiency of 1.7% under simulated standard solar light (AM1.5G, 100 mW/cm(2)). The morphology of the bulk heterojunction blend seems to limit the photovoltaic performance.

引用

页码：2240 / 2246

页数：7

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