Molecular Weight-Induced Structural Transition of Liquid-Crystalline Polymer Semiconductor for High-Stability Organic Transistor (pages 4442–4447)
Do Hwan Kim, Jiyoul Lee, Jeong-Il Park, Jong Won Chung, Wi Hyoung Lee, Gaurav Giri, Byungwook Yoo, Bonwon Koo, Joo Young Kim, Yong Wan Jin, Kilwon Cho, Bang-Lin Lee and Sangyoon Lee
Article first published online: 21 SEP 2011 | DOI: 10.1002/adfm.201101021
Polymer transistors with high bias-stability comparable to amorphous silicon are realized by optimizing the molecular weight of copolymer semiconductor on dielectric surface. Thermally structural transition from liquid-crystalline to semi-crystalline phases strongly in thin films affects the device performances (charge-carrier mobility and electrical bias-stability) as well as the molecular ordering and the morphological features.