Suhao Wang, Wenjin Zhu, Ian E Jacobs, William A Wood, Zichen Wang, Suraj Manikandan, Jens Wenzel Andreasen, Hio-Ieng Un, Sarah Ursel, Sébastien Peralta, Shaoliang Guan, Jean-Claude Grivel, Stéphane Longuemart, Henning Sirringhaus
Doping is a crucial strategy to enhance the performance of various organic electronic devices. However, in many cases, the random distribution of dopants in conjugated polymers leads to the disruption of the polymer microstructure, severely constraining the achievable performance of electronic devices. Here, we show that by ion-exchange doping polythiophene-based P[(3HT)1-x -stat-(T)x ] (x = 0 (P1), 0.12 (P2), 0.24 (P3), and 0.36 (P4)), remarkably high electrical conductivity of > 400 S cm-1 and power factor of >16 μW m-1 K-2 were achieved for the random copolymer P3, ranking it among highest ever reported for unaligned P3HT-based films, significantly higher than that of P1(< 40 S cm-1, < 4 μW m-1 K-2 )...
April 1, 2024: Advanced Materials