초록 |
Recently organic (polymeric) semiconducting materials have been extensively studied due to their potential applications for organic optoelectronic devices such as organic light-emitting devices, organic solar cells, organic field-effect transistors, organic photodiodes, organic memory devices, organic inverters, etc. The major advantage of these organic-based optoelectronic devices can be attributed to the low-cost manufacturing because most of fabrication processes can be carried out at lower temperatures compared to inorganic devices. Poly (3-hexylthiophene) (P3HT) has been highlighted owing to its particular chain-packing characteristics leading to high charge carrier mobility and broad light absorption up to 650 nm. In this work, we will show the influence of bulk regioregularity (RR) on the hole mobility of blend films of regioregular and regiorandom P3HT polymers. The detailed effect of the film nanomorphology will be discussed in conjunction with the hole mobility change. |