Near- and Deep-Ultraviolet Resonance Raman Spectroscopy of Pyrazine-Al-4 Complex and Al-3-Pyrazine-Al-3 Junction
文献类型：期刊论文
| 作者 | Sun, MT ; Zhang, SP ; Fang, YR ; Yang, ZL ; Wu, DY ; Dong, B ; Xu, HX |
| 刊名 | JOURNAL OF PHYSICAL CHEMISTRY C
 |
| 出版日期 | 2009 |
| 卷号 | 113期号:44页码:19328 |
| 关键词 | SURFACE-ENHANCED SPECTROSCOPY SILVER ELECTRODE ELECTROMAGNETIC THEORY SCATTERING MOLECULES MECHANISM SERS NANOPARTICLES EXCITATION REGION |
| ISSN号 | 1932-7447 |
| 通讯作者 | Sun, MT (reprint author), Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, POB 603-146, Beijing 100190, Peoples R China. |
| 中文摘要 | Near- and deep-ultraviolet (UV) resonance Raman spectroscopy of pyrazine-Al-4 complex and Al-3-pyrazine-Al-3 junction was investigated theoretically with a quantum chemical method. Here, 325 and 244 nm were employed as near- and deep-UV sources in our theoretical study The intensities of static normal Raman spectra of pyrazine-Al-4 complex and Al-3-pyrazine-Al-3 junction were enhanced oil the orders of 10 and 10(3) by a static chemical mechanism, respectively The calculated absorption spectra reveal strong B-6(2) and B-13(2u) electronic transitions near 325 nm for pyrazine-Al-4 complex and 244 nm for Al-3-pyrazine-Al-3 junction, respectively. The analyses of orbital transitions in electronic transitions reveal they are the mixture of (metal to molecule) charge transfer excitation and intracluster excitation. The intensity of near-UV resonance Raman spectroscopy of pyrazine-Al-4 complex and the intensity of deep-UV resonance Raman spectroscopy of Al-3-pyrazine-Al-3 junction are strongly enhanced on the order of 10(5) and 10(4), respectively, compared to the Raman intensity of isolated pyrazine excited at 325 and 244 nm. The calculations of Mic theory and the three-dimensional finite-difference time domain method reveal strong surface plasmon resonance and strong electromagnetic enhancements at 325 and 244 nm for single and dimer nanoparticles at suitable sizes and gap distance, respectively. The strongest SERS enhancement in the system of junction is on the order of 10(8) at the incident lights of 325 and 244 nm. The total enhancements, including the chemical and electromagnetic enhancements, can reach Lip to 10(13). So, Al is a suitable material for near- and deep-UV surface-enhanced resonance Raman scattering |
| 收录类别 | SCI |
| 资助信息 | National Natural Science Foundation of China [90923003, 10874234, 20703064, 20703032, 10625418, 10804015]; National Basic Research Project of China [2009CB930701, 2009CB930703, 2007CB936804]; Natural Science Foundation of Fujian Province of China [E0710028] |
| 语种 | 英语 |
| 公开日期 | 2013-09-24 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/49760]  |
| 专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
| 推荐引用方式 GB/T 7714 | Sun, MT,Zhang, SP,Fang, YR,et al. Near- and Deep-Ultraviolet Resonance Raman Spectroscopy of Pyrazine-Al-4 Complex and Al-3-Pyrazine-Al-3 Junction[J]. JOURNAL OF PHYSICAL CHEMISTRY C,2009,113(44):19328. |
| APA | Sun, MT.,Zhang, SP.,Fang, YR.,Yang, ZL.,Wu, DY.,...&Xu, HX.(2009).Near- and Deep-Ultraviolet Resonance Raman Spectroscopy of Pyrazine-Al-4 Complex and Al-3-Pyrazine-Al-3 Junction.JOURNAL OF PHYSICAL CHEMISTRY C,113(44),19328. |
| MLA | Sun, MT,et al."Near- and Deep-Ultraviolet Resonance Raman Spectroscopy of Pyrazine-Al-4 Complex and Al-3-Pyrazine-Al-3 Junction".JOURNAL OF PHYSICAL CHEMISTRY C 113.44(2009):19328. |
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来源：物理研究所
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