Air-stable triarylamine-based amorphous polymer as donor material for bulk-heterojunction organic solar cells

作者：Yasuda Takeshi^*; Suzuki Takao; Takahashi Mitsuru; Han Liyuan

来源：Solar Energy Materials and Solar Cells, 2011, 95(12): 3509-3515.

DOI：10.1016/j.solmat.2011.08.013

• Bulk heterojunction
• Solar cell
• Polymer
• Amorphous
• Triarylamine
• Transistor

A new air-stable triarylamine-based amorphous polymer, TSP-T11, which consists of thiophene and triarylamine units, can be successfully utilized to fabricate bulk-heterojunction organic photovoltaics (OPVs) using PC60BM or PC70BM as acceptor materials. The highest level of performance of OPVs optimized at TSP-T11:PC70BM (weight ratios of 1:4) with thicknesses of 68 nm exhibited an open circuit voltage (V-oc) of 0.75 V, a short circuit current (J(sc)) of 8.03 mA cm(-2), and a power-conversion efficiency (PCE) of 2.22% under simulated air mass 1.5 solar irradiation at 100 mW cm(-2). Although TSP-T11 has a lower hole mobility (1.5 x 10(-4) cm(2) V-1 s(-1)) than P3HT, the use of amorphous film of TSP-T11 as a donor material for OPVs offers advantages over the use of polycrystalline film of P3HT in terms of its air-stability and pinhole-free homogeneous morphology.

• 出版日期2011-12