| AVS 62nd International Symposium & Exhibition | |
| Electronic Materials and Processing | Tuesday Sessions |
| Session EM-TuP |
| Session: | Electronic Materials and Processing Poster Session |
| Presenter: | JeongHee Shin, Daegu Gyeongbuk Institute of Science and Technology (DGIST), Republic of Korea |
| Authors: | J.H. Shin, Daegu Gyeongbuk Institute of Science and Technology (DGIST), Republic of Korea S. Kim, Daegu Gyeongbuk Institute of Science and Technology (DGIST), Republic of Korea J.E. Jang, Daegu Gyeongbuk Institute of Science and Technology (DGIST), Republic of Korea |
| Correspondent: | Click to Email |
Recently, the antenna has been scaled down to nanometer to absorb higher electric-magnetic wave. Traditionally in communication area, high frequency is required to transmit or receive much more information. Nanometer antenna is different from general antenna in communication area due to properties and applications. Nanoantenna can cover the visible to near-infrared (NIR) wavelength regions; thus, it has a lots of applications in communication, optics, bioelectronics and so forth. Especially in optics area, not only the light control but also structure-depended absorption, reflection, and transmission using nanoantenna have been studied. The light absorption using nanoantenna can be useful to harvest electrical energy instead of solar cells expected to be much higher efficiency as well. The optical properties of nanoantenna can be affected by geometry factors such as structure, shape, and pitch. It cannot correspond traditional antenna theory due to surface plasmons (SPs) which are coherent delocalized electron. This penomenons exist at the interface between two materials, strong couplings between electrons on metal and incident light. Designing nanoantenna is much more complicate than that of general antenna so that it does not simply follow conventional antenna theory. To apply the nanoantenna to various applications, the study of parameters to define optical properties in nanoantenna should be necessary. We focused on control of color via nanoantenna depending on various geometries. First of all, we investigated the relation between parameters and color change. We can design the target peak wavelength in visible region. Then, we will report optical transistor to control colors. It can be applied to various applications such as color filter, next-generation display, energy harvesting system with higher efficiency, and so on.