| 초록 |
Surface plasmons are charge density oscillations confined to metallic nanostructures. The collective response of electrons in surface of conductor to light, so-called surface plasmon resonance, affects the spectroscopy of nearby molecules. The frequency and intensity of the SP absorption bands are characteristic of the type of metal, and are sensitive to the size, size distribution, as well as to the environments which surround them. Due to the quenching of emission by SPs in the LED, only few attempts have so far been made for SPs to be applied for OLED. Recently, it was reported that the presence of metal nanoparticles or thin film in the LED can enhance the light emission. In our study, we demonstrate enhanced PL intensity of organic fluorophores, as well as, enhanced OLED performance via Au and Ag nanostructures which exhibit surface plasmons in the visible spectral region. These metal nanostructures on the ITO were fabricated by thermal evaporation method or co-sputtering method. |
