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| Type |
Poster Presentation |
| Area |
Analytical Chemistry |
| Room No. |
Exhibition Hall 2 |
| Time |
4월 19일 (금요일) 11:00~12:30 |
| Code |
ANAL.P-238 |
| Subject |
Influence of the Capping Material on Chemical Interface Damping Induced by Pyridine with Nitrogen in Single Gold Nanorods |
| Authors |
Kyeong Rim Ryu, Ji Won Ha1,*
Chemistry, University of Ulsan, Korea
1Department of Chemistry, University of Ulsan, Korea
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| Abstract |
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. |
| E-mail |
lkr96@naver.com |
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123rd General Meeting of the KCS