Synthesis, characterization, and photovoltaic properties of a low band gap polymer based on silole-containing polythiophenes and 2,1,3-benzothiadiazole.
A new low band gap silole-containing conjugated polymer, PSBTBT, was designed and synthesized. Photovoltaic properties of PSBTBT were initially investigated, and an average power conversion efficiency (PCE) of 4.7% with a best PCE of 5.1% was recorded under illumination (AM 1.5G, 100 mW/cm(2)). The response range of the device covers the whole visible range from 380 to 800 nm. These results indicate that PSBTBT is a promising polymer material for applications in polymer solar cells.
Hou
Jianhui
J
Department of Materials Science and Engineering and California Nanosystems Institute, University of California, Los Angeles, California 90095, USA.
Chen
Hsiang-Yu
HY
Zhang
Shaoqing
S
Li
Gang
G
Yang
Yang
Y