Localized surface plasmon of Ag nanoparticles affected by annealing and its coupling with the excitons of Rhodamine 6G
Localized surface plasmon of Ag nanoparticles affected by annealing and its coupling with the excitons of Rhodamine 6G
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退火影响银纳米粒子局域表面等离子体及其与罗丹明6G激子的耦合
DOI：
10.1116/1.4811819
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发表时间：
2013-06
影响因子：
2.9
通讯作者：
Xu, Xiao-liang
中科院分区：
文献类型：
--
作者：
Lu, Xin;Wang, Chun-mei;Yang, Jun;Xu, Xiao-liang
使用真空蒸发工艺将清洁且均匀分布的银纳米颗粒 (AgNP) 沉积在玻璃基板上。通过将蒸发时间从 20 秒更改为 180 秒，这些 AgNP 的局域表面等离子共振 (LSPR) 成功地从 420 nm 调谐到 780 nm。此外，还发现通过在200℃流动氮气中退火10分钟，局域表面等离子体共振可以向410至478nm范围内的较短波长移动。 SEM 和 AFM 图像显示，蓝移与 AgNP 微观特征的变化相关。选择罗丹明 6G (R6G) 作为探针分子，探索其在退火前后与 AgNP 的偶联。消光光谱分析表明，当局域表面等离子体共振接近 R6G 的吸收时，会发生强耦合。
Clean and uniformly distributed silver nanoparticles (AgNPs) are deposited on glass substrates using a vacuum evaporation process. The localized surface plasmon resonance (LSPR) of these AgNPs is successfully tuned from 420 to 780 nm by changing the evaporation time from 20 to 180 s. Further, it is found that the LSPR can be shifted to shorter wavelength in the range of 410 to 478 nm by annealing in flowing nitrogen at 200 °C for 10 min. The blueshift is correlated with the changes in microscopic features of the AgNPs, as revealed by SEM and AFM images. Rhodamine 6G (R6G) was chosen as the probe molecule to explore its coupling with AgNPs before and after annealing. Analysis of extinction spectra suggests that strong coupling takes place when the LSPR is close to the absorption of R6G.
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影响因子：
5.2
作者：
Amarjargal, Altangerel;Tijing, Leonard D.;Kim, Cheol Sang
通讯作者：
Kim, Cheol Sang
DOI：
10.1039/c2cp40091j
发表时间：
2012-04
期刊：
Physical chemistry chemical physics : PCCP
影响因子：
--
作者：
Xiaxi Li;Kevin S Blinn;Yingcui Fang;Mingfei Liu;M. Mahmoud;Shuang Cheng;L. Bottomley;M. El-Sayed;Meilin Liu
通讯作者：
Xiaxi Li;Kevin S Blinn;Yingcui Fang;Mingfei Liu;M. Mahmoud;Shuang Cheng;L. Bottomley;M. El-Sayed;Meilin Liu
影响因子：
6.7
作者：
J. Zuo;P. Keil;G. Grundmeier
通讯作者：
J. Zuo;P. Keil;G. Grundmeier
影响因子：
3.2
作者：
Feng Liu;J. Nunzi
通讯作者：
Feng Liu;J. Nunzi
影响因子：
3.7
作者：
Ringe, Emilie;McMahon, Jeffrey M.;Van Duyne, Richard P.
通讯作者：
Van Duyne, Richard P.