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  • 02월 28일 17시 이후 : 초록수정 불가능, 일정확인 및 검색만 가능

제123회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Influence of the Capping Material on Chemical Interface Damping Induced by Pyridine with Nitrogen in Single Gold Nanorods

2019년 1월 31일 01시 30분 49초
ANAL2.O-28 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
금 10시 : 48분
Analytical Chemistry - Oral Presentation of Young Analytical Chemists II
저자 및
Kyeong Rim Ryu, Ji Won Ha1,*
Chemistry, University of Ulsan, Korea
1Department of Chemistry, University of Ulsan, Korea
The chemical interface damping (CID) is one of the plasmon decay processes in gold nanoparticles. Herein, to find new functional groups that can induce CID as an alternative to thiol groups, we performed dark-field (DF) scattering studies of gold nanorods (AuNRs) with pyridine as adsorbate. We found that the adsorption of pyridine molecules on single AuNRs though a Nitrogen-Au interaction leads to the increased localized surface plasmon resonance (LSPR) linewidth. However, pyridine molecules were not adsorbed effectively on the AuNR surfaces with the capping reagent on the particle surfaces. Therefore, this study allows us to gain new understanding of the effect and role of the capping reagent in CID induced by pyridine. Furthermore, pyridine with nitrogen, an alternative to thiol groups, was revealed to induce a strong CID in AuNRs through the interaction of nitrogen with the Au surfaces where the capping material was removed by the oxygen plasma treatment.