Synthesis and characterization of a poly(1,3-dithienylisothianaphthene) derivative for bulk heterojunction photovoltaic cells

被引：56

作者：

Vangeneugden, DL

Vanderzande, DJM

Salbeck, J

van Hal, PA

Janssen, RAJ

Hummelen, JC

Brabec, CJ

Shaheen, SE

Sariciftci, NS

机构：

[1] Eindhoven Univ Technol, Lab Macromol & Organ Chem, NL-5600 MB Eindhoven, Netherlands

[2] Univ Groningen, Stratingh Inst, NL-9747 AG Groningen, Netherlands

[3] Univ Groningen, MSC, NL-9747 AG Groningen, Netherlands

[4] Johannes Kepler Univ Linz, Linz Inst Organ Solar Cells, LIOS, A-4040 Linz, Austria

[5] Univ Limburg, Div Chem, Inst Mat Res, Lab Organ & Polymer Chem, B-3590 Diepenbeek, Belgium

[6] Gerhard Mercator Univ, FB 6 Chem Geog Electrochem & Optoelect Mat, D-47048 Duisburg, Germany

来源：

JOURNAL OF PHYSICAL CHEMISTRY B | 2001年 / 105卷 / 45期

关键词：

D O I：

10.1021/jp013073t

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：

The synthesis of a poly(1,3-dithienylisothianaphthene) (PDTITN) derivative obtained via oxidative polymerization of 5,6-dichloro-1,2-bis(3'-dodecylthienyl)isothianaphthene is described. PDTITN exhibits a band gap of 1.80-1.85 eV. The redox properties of PDTITN were characterized using cyclic voltammetry and spectroelectrochemisty. Photoexcitation of PDTITN results in photoluminescence (PL) in the near-IR region and the formation of a triplet state. In the presence of a methanofullerene (PCBM) as an electron acceptor, PL and triplet formation of PDTITN are quenched. In photovoltaic devices using blends of the polymer with PCBM, the observed incident-photon-to-collected-electron efficiency (IPCE) up to 24% at 400 nm and the 3 orders of magnitude increase of short circuit current as compared to the polymer alone prove the photoactivity of the PDTITN/PCBM blend in the device.

引用

页码：11106 / 11113

页数：8

共 49 条

[1] NATURE OF IMPURITIES IN PI-CONJUGATED POLYMERS PREPARED BY FERRIC-CHLORIDE AND THEIR EFFECT ON THE ELECTRICAL-PROPERTIES OF METAL-INSULATOR-SEMICONDUCTOR STRUCTURES [J].