초록 |
Controlled nanostructures of π-conjugated block copolymers exhibit an interesting behavior that makes them promising candidates for use in organic photovoltaics, field-effect transistors, bio sensors, and etc. We demonstrate the use of wetting nanoporous alumina template (including well-defined pore arrays) with block copolymer solutions or molten block copolymers to produce ordered nanoarrays of self-assembled block copolymers, supported onto various substrates or metal electrodes, as well as free standing thin films. The systems were studied using grazing-incidence X-ray diffraction, scattering, and nanoscale imaging techniques that allow the phase-separation transition, crystallinity, and chain orientation information. |