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대한화학회 제124회 학술발표회 및 총회 Plasmonic Sensing of Pyridine by Chemical Interface Damping of Single Au/Ag Core Shell Nanorods.

등록일
2019년 8월 22일 16시 43분 39초
접수번호
3011
발표코드
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발표시간
목 09시 : 33분
발표형식
구두발표
발표분야
Analytical Chemistry - Oral Presentation of Young Analytical Chemists I
저자 및
공동저자
Kyeong Rim Ryu, Ji Won Ha1,*
Chemistry, University of Ulsan, Korea
1Department of Chemistry, University of Ulsan, Korea
Noble metal nanoparticles have a unique optical property resulted from localized surface plasmon resonance (LSPR). In this study, we observed that the thicker the silver coated in Au/Ag core shell nanorods, the broadener the line width of LSPR under dark-field scattering microscopy and spectroscopy. The chemical interface damping (CID) is one of the plasmon decay processes in gold nanoparticles. Herein, to find new plasmonic metal that can induced CID as an alternative to gold nanorods, we conducted an dark -field (DF) scattering studids of Au/Ag core shell nanorods with pyridine as adsorbate. We investigated the CID induced by a pyridine attached on the Au/Ag core shell hybrid nanorods under dark-field scattering microscopy and spectroscopy. By the adsorption of pyridine molecules on the Au/Ag nanorods, their LSPR linewidth was broadened with decreasing the scattering intensity due to CID effect.
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