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|
| Type |
Poster Presentation |
| Area |
Physical Chemistry |
| Room No. |
Grand Ballroom |
| Time |
10월 19일 (금요일) 11:00~12:30 |
| Code |
PHYS.P-229 |
| Subject |
Fluorescence modulation near Ag nanopores of different pore diameters |
| Authors |
Weon-Sik Chae*, WonGeun Yang
Daegu Center, Korea Basic Science Institute, Korea
|
| Abstract |
Nanoporous metals provide unique nanoscopic environment to enhance fluorescence of adjacent fluorophores. Accumulated optical fields in nanopores can enhance absorption process of fluorophores therein and subsequently accelerate radiative recombination. According to the theory, metal-enhanced fluorescence (MEF) can be modulated by a function of nanopore diameter. In this study, we prepared the nanoporous Ag skeletons by reduction-induced decomposition (RID) process of AgCl. The RID process simply controls the pore diameter of the resulting nanoporous Ag skeletons. It was revealed that MEF efficiency is enhanced in the nanoporous Ag with the smallest nanopore size, whereas the larger porous Ag skeletons severely quench emission. This experiment is carefully studied with time- and space-resolved fluorescence microscopy. |
| E-mail |
wschae@kbsi.re.kr |
|
122nd General Meeting of the KCS