We have analyzed the effect of the morphology of the pentacene films confined in the micro- and nano-scale relief patterns on the charge transport. As the patterned space region for confining the growth of organic semiconductors decreased to below the average grain size (∼ 1.7 μm), the field-effect mobility increased. Because the molecular ordering is influenced by the pattern’s confining effect on pentacene film growth. Our results will provide an approach that can be used to further increase the charge transport mobility of polycrystalline organic semiconductors by increasing the molecular ordering in the direction of charge transport.
- Tae-Sik Kim
- Se Hyun Kim
- Tae-Woo Lee
