Chemical Mechanism and Tunability of Surface-Enhanced Raman Scattering of Pyridine on Heteronuclear Coinage Metal Diatomic Clusters: A Density Functional Study
Chemical Mechanism and Tunability of Surface-Enhanced Raman Scattering of Pyridine on Heteronuclear Coinage Metal Diatomic Clusters: A Density Functional Study
复制标题
异核造币金属双原子簇上吡啶表面增强拉曼散射的化学机制和可调性:密度泛函研究
DOI:
10.1021/jp401462t
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发表时间:
2013-06
影响因子:
3.7
通讯作者:
Zhang, Rui-Qin
中科院分区:
文献类型:
--
作者:
Chen, Lei;Li, Zhengqiang;Meng, Yan;Lu, Ming;Wang, Zhigang;Zhang, Rui-Qin
As surface-enhanced Raman scattering (SERS) substrates, coinage bimetallic clusters offer high SERS enhancement and potential for applications in precision molecule detection. Here, we elucidate the chemical mechanism and reveal the tunability of the SERS of a pyridine molecule (Py) on coinage bimetallic substrate by investigating various possible heteronuclear coinage metal diatomic clusters (HCMDCs) interacting with the pyridine molecule. We obtain the Raman spectra, molecular orbital, and binding property of each HCMDC–Py system using density functional theory. We find that the Raman characteristic peaks, adsorption energy, charge transfer, geometry parameters, and molecular orbital distribution are all closely related to the compositions and binding sites of the HCMDC. The results show that the synergistic effect of different coinage metal atoms in the HCMDC plays an important role in SERS enhancement, which varies with the component and adsorption site of the HCMDC, thus providing the possibility of ...
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DOI:
10.1063/1.2046670
发表时间:
2005-11
期刊:
The Journal of chemical physics
影响因子:
--
作者:
L. Jensen;L. Zhao;J. Autschbach;G. Schatz
通讯作者:
L. Jensen;L. Zhao;J. Autschbach;G. Schatz
影响因子:
2.9
作者:
De‐Yin Wu;B. Ren;Yuxiong Jiang;Xin Xu;Z. Tian
通讯作者:
De‐Yin Wu;B. Ren;Yuxiong Jiang;Xin Xu;Z. Tian
影响因子:
3.1
作者:
Xinling Tang;M. Tsuji
通讯作者:
Xinling Tang;M. Tsuji
影响因子:
64.8
作者:
J. F. Li;Yi Fan Huang;Yong Ding;Zhi-Lin Yang;S. Li;Xiao Shun Zhou;F. Fan;Wei Zhang;Z. Zho
通讯作者:
J. F. Li;Yi Fan Huang;Yong Ding;Zhi-Lin Yang;S. Li;Xiao Shun Zhou;F. Fan;Wei Zhang;Z. Zho
影响因子:
--
作者:
D. Senapati;Samuel S. R. Dasary;Anant Kumar Singh;Tapas Senapati;Hongtao Yu;P. Ray
通讯作者:
D. Senapati;Samuel S. R. Dasary;Anant Kumar Singh;Tapas Senapati;Hongtao Yu;P. Ray