화학공학소재연구정보센터
학회 한국고분자학회
학술대회 2019년 가을 (10/09 ~ 10/11, 제주컨벤션센터)
권호 44권 2호
발표분야 고분자구조 및 물성
제목 Fabrication of Split-Ring Resonators Operating in Visible Wavelength with Block Copolymer Confinement Effects
초록 Split ring resonators(SSR) have received many interests because they can realize negative permeability, which is necessary for realizing the negative refractive index. Until now, most of these structures were fabricated by top-down method, which have limits in large area fabrication and operation limits. Here, we propose new approaches to fabricate SSR structures over a large area (~cm2) exhibiting multiple electromagnetic responses in visible and near-infrared wavelengths. Confining polystyrene-block-poly (methyl methacrylate) copolymer (PS-b-PMMA) inside cylindrical pores of aluminum oxide (AAO) template followed by selective etching of PMMA, concentrical PS rings structure are achieved. Final SSR structures are achieved with gold deposition on PS nanodomains. This concept of fabricating SSR structure with block copolymer self-assembly and incorporating plasmonic metals into one nanodomains could be applied to realize large-scale metamaterials working at visible and NIR wavelengths.
저자 고명철, 윤형건, 김진곤
소속 포항공과대
키워드 Block copolymer self-assembly; Anodized aluminum oxide; Plasmonic nanostructure
E-Mail jkkim@postech.ac.kr