| 蒽醌分子的深紫外针尖增强拉曼散射的化学增强机制 |
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| 引用本文： | 侯岩雪,井西利,王明利,李源作.蒽醌分子的深紫外针尖增强拉曼散射的化学增强机制[J].东北重型机械学院学报,2012(2):155-160. |
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| 作者姓名： | 侯岩雪 井西利 王明利 李源作 |
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| 作者单位： | [1]燕山大学理学院,河北秦皇岛066004 [2]中国科学院物理研究所,北京100190 [3]东北林业大学理学院,黑龙江哈尔滨150040 |
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| 基金项目： | 国家自然科学基金资助项目（10874234）;教育部科学技术研究重点项目（210024）;河北省科学技术研究与发展计划项目（11215170）;秦皇岛市科学技术研究与发展计划（201001A034） |
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| 摘 要： | 利用含时密度泛函理论来研究深紫外针尖增强拉曼散射光谱的化学增强机制的报道,引发了许多关于紫外针尖增强拉曼散射的实验研究。本文通过含时密度泛函理论来计算铝3-蒽醌分子-铝3结在262 nm光能量激发下的拉曼光谱,结果表明该分子的拉曼光谱是针尖增强共振拉曼散射光谱,其化学增强因子为107。这表明在生物和材料领域,针尖增强共振拉曼散射技术可用于深紫外区域的指纹振荡光谱研究。
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| 关 键 词： | 针尖增强拉曼散射 深紫外 含时密度泛函理论 |
Chemical enhancement on deep ultraviolet tip-enhanced Raman scattering of anthraquinone |
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| Authors: | HOU Yan-xue JING Xi-li WANG Ming-li LI Yuan-zuo |
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| Affiliation: | 1. College of Sciences, Yanshan University, Qinhuangdao, Hebei 066004, China; 2. Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China; 3. CollegeofScience, Northeast Forestry University, Harbin, Heilongjiang 150040, China) |
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| Abstract: | Chemical enhancement mechanisms on deep ultraviolet tip-enhanced Raman spectra （DUV-TERS） are investigated with time dependent density functional theory （TD-DFT）, stimulated the recent UV-TERS experimental reports. The Raman spec- trum of A13-anthraquinone-A13 excited at 262 nm energy is calculated with TD-DFT in this paper. The results reveal that it is tip-en- hanced resonance Raman scattering, and chemical enhancement is on the order of 107, Then it is supposed that the technique of DUV-TERS can be used to study figurerprint vibrational spectroscopy in the fields of biology and material in resonance deep ultra- violet region. |
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| Keywords: | tip-enhanced Raman scattering deep ultraviolet time dependent density function theory |
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