화학공학소재연구정보센터
학회 한국공업화학회
학술대회 2017년 가을 (11/08 ~ 11/10, 부산 벡스코(BEXCO))
권호 21권 2호
발표분야 (무기재료) 메타소재 및 플라즈모닉 나노구조체
제목 Fabrication and Applications of Plasmonic Nanostructures
초록 It has been conjectured that the constructive interferences of diffused electromagnetic waves in a disordered sub-wavelength nanostructures can contribute to the enhancement of near-field in 2D plasmonic structures. In this study, we demonstrated disordered plasmonic media comprised by sub-wavelength metallic nanostructures. The disordered nanostructures are deliberately designed to localize enhanced near-field. The induced field finally results in enhanced near IR-to-visible light upconversion (UCL). In order to form plasmonic hot-spots, we fabricated self-assembled array of Ag nanoparticles over a plasmonic substrate containing UC nanoparticles. We also employed a randomly aligned network of Ag nanowires to support Fabry-Perot resonance mode. We observed the formation of strong near-field of near IR around the Ag nanostructures. We also observed reinforced nano-antenna effects given by the randomized nanostructures.
저자 권석준
소속 한국과학기술(연)
키워드 plasmonic; metal nanostructures; near-field; light trapping; upconversion
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