P-120: High-performance of Ink-jet Printed Organic Thin-film Transistors on Flexible Substrate using a Small Molecule-polymer Blend

摘要

We report the high performance, 6, 13-bis(triisopropyl silylethynyl) pentacene (TIPS-pentacene) organic thin-film transistors (OTFTs) by ink-jet printing on a thin polymer layer. The OTFT with polymer-/TIPS-pentacene exhibited the saturation field-effect mobility (μ_(sat)) of 1.11 cm~2/Vs and threshold voltage (V_(th)) of -0.41 V. In contrast, the ink-jet printed TIPS-pentacene TFT without PS layer shows the (μ_(sat)) of 0.36 cm~2/Vs and V_(th), of -0.62 V. The improved performance of polymer blended OTFT appears to be due to the improved crystallinity of the polymer blended TIPS-pentacene layer.