A High-Mobility Electron-Transport Polymer with Broad Absorption and Its Use in Field-Effect Transistors and All-Polymer Solar Cells
Xiaowei Zhan(Georgia Institute of Technology), Zhan’ao Tan(Georgia Institute of Technology), Benoît Domercq(Georgia Institute of Technology), Zesheng An(Georgia Institute of Technology), Xuan Zhang(Georgia Institute of Technology), Stephen Barlow(Georgia Institute of Technology), Yongfang Li(Georgia Institute of Technology), Daoben Zhu(Georgia Institute of Technology), Bernard Kippelen(Georgia Institute of Technology), Seth R. Marder(Georgia Institute of Technology)
Cited by 1,166
Abstract
An electron-transport polymer with good solution processibility, excellent thermal stability, and high electron affinity based on alternating perylene diimide and dithienothiophene units has been synthesized. Electron mobilities as high as 1.3 × 10-2 cm2 V-1 s-1 have been measured in field-effect transistor geometry. The polymer shows broad absorptions throughout the visible and extending into the near-IR. A power conversion efficiency of over 1%, under simulated AM 1.5, 100 mW/cm2, was measured for a single-layer solar cell using this polymer as an acceptor and a polythiophene derivative as a donor.