Surface-induced orientation of pentacene molecules and transport anisotropy on nanogroove SiO2 dielectric layer by simple scratched method: The study of surface roughness and molecular alignment on the mobility of organic thin film transistors
Simple scratching method for nanogroove structure on SiO2 surface is proposed. Nano-grooved substrate have been effective to molecular alignment of pentacene. Rough surface with nanogroove negatively affects the performance of OTFT.