A polythiophene derivative with dioctyloxyltriphenylamine-vinylene conjugated side chain: Synthesis, hole mobility, and photovoltaic property

Authors

  • Meixiu Wan,

    1. College of Chemistry and Key Laboratory of Polymeric Materials and Application Technology of Hunan Province, Xiangtan University, Xiangtan 411105, People's Republic of China
    2. CAS Key Laboratory of Organic Solid, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, People's Republic of China
    Search for more papers by this author
  • Guangyi Sang,

    1. CAS Key Laboratory of Organic Solid, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, People's Republic of China
    Search for more papers by this author
  • Yingping Zou,

    1. CAS Key Laboratory of Organic Solid, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, People's Republic of China
    Search for more papers by this author
  • Songting Tan,

    Corresponding author
    1. College of Chemistry and Key Laboratory of Polymeric Materials and Application Technology of Hunan Province, Xiangtan University, Xiangtan 411105, People's Republic of China
    • College of Chemistry and Key Laboratory of Polymeric Materials and Application Technology of Hunan Province, Xiangtan University, Xiangtan 411105, People's Republic of China
    Search for more papers by this author
  • Yongfang Li

    Corresponding author
    1. CAS Key Laboratory of Organic Solid, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, People's Republic of China
    • CAS Key Laboratory of Organic Solid, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, People's Republic of China
    Search for more papers by this author

Abstract

A new polythiophene derivative with dioctyloxyl triphenylamine-vinylene (DOTPAV) conjugated side-chain, DOTPAV-PT, was synthesized by the Stille coupling method and characterized by 1H-NMR, 13C-NMR, elemental analysis, gel permeation chromatography, thermogravimetric analysis, UV–vis absorption spectroscopy, photoluminescence spectroscopy, and cyclic voltammetry. The polymer DOTPAV-PT is soluble in common organic solvents and possesses good thermal stability with 5% weight loss temperature of 310°C. The weight-average molecular weight of DOTPAV-PT is 8.0 K with a polydispersity index of 1.24. The hole mobility of the polymer determined from space-charge-limited current model was 1.25 × 10−4 cm2 V−1 s−1. The bulk heterojunction polymer solar cell with the configuration of ITO/PEDOT : PSS/polymer : PCBM (1 : 1)/Ca/Al was fabricated, and the power conversion efficiency of the device was 0.16% under the illumination of AM1.5, 100 mW cm−2. © 2009 Wiley Periodicals, Inc. J Appl Polym Sci, 2009

Ancillary