Synthesis and Photovoltaic Properties of a Thienylenevinylene and Diketopyrrolopyrrole Copolymer with High Mobility.

نویسندگان

  • Bogyu Lim
  • Jun-Seok Yeo
  • Dongyoon Khim
  • Dong-Yu Kim
چکیده

A novel donor-acceptor-type polymer with a low band-gap that alternates electron-rich thienylenevinylene groups with electron-deficient diketopyrrolopyrrole (DPP) units (PETVTDPP) has been synthesized by Pd-catalyzed Stille cross-coupling polymerization. The polymer shows a broad absorption band of wavelengths that range from 330 to 900 nm, and a low band-gap value of 1.43 eV. The field-effect mobility of an organic thin-film transistor based on this polymer is 0.05 cm(2 ) · Vs(-1) . Bulk-heterojunction solar cells using a mixture of PETVTDPP and PC[71] BM for the active layer show a power conversion efficiency (PCE) of 1.94% under simulated AM 1.5 G solar irradiation at 100 mW · cm(-2) .

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عنوان ژورنال:
  • Macromolecular rapid communications

دوره 32 19  شماره 

صفحات  -

تاریخ انتشار 2011