Nanoscale Optoelectronic Characteristics Based on Functional Organic Materials

초록

Organic-based nanotubes (NTs), nanowires (NWs), and nanoparticles (NPs) using π-conjugated polymers and small molecules are introduced. The fabrications, characteristics, and applications of the hybrid nanostructures using the organic nanomaterials are intensively covered. The hybrid nanostructures were visualized and confirmed through SEM, TEM, HR-TEM, and elemental analysis. The enhanced PL efficiency of the nanosystems in nanoscale was determined through laser confocal microscope (LCM) PL measurements with a high spatial resolution. The LCM PL intensity of the single unit of the light-emitting-polymer/metal hybrid NTs/NWs/NPs increased considerably. We analyze that the huge enhancement of LCM PL of the light-emitting polymer based-hybrid nanostructures might originate from energy transfer and/or charge transfer in a surface plasmon resonance (SPR) coupling, supported by ultraviolet and visible absorption spectra. We investigated the photo-responsive bio-sensing characteristics using the single strand of the hybrid NTs. We fabricated light-emitting bar-code NWs through the sequential synthesis of different polymers nano-compartments. The recent progress of organic nanostructures using small π-conjugated molecules is also presented.