Charge Transfer in an Ordered AgCu2S4-MBA System Based on Surface-Enhanced Raman Scattering
文献类型：期刊论文
| 作者 | Zhang, X. Y.; Han, D. L.; Pang, Z. Y.; Sun, Y. S.; Wang, Y. X.; Zhang, Y. J.; Yang, J. H.; Chen, L. |
| 刊名 | Journal of Physical Chemistry C
 |
| 出版日期 | 2018 |
| 卷号 | 122期号:10页码:5599-5605 |
| 关键词 | photocatalytic activity nanocap arrays visible-light spectroscopy sers nanoparticles Chemistry Science & Technology - Other Topics Materials Science |
| ISSN号 | 1932-7447 |
| DOI | 10.1021/acs.jpcc.8b00701 |
| 英文摘要 | In this study, we introduced an ordered metal-semiconductor-molecular system and investigated the surface-enhanced Raman scattering (SERS) effect. The carrier distribution and density can be easily monitored by changing the thickness of the Cu2S film on the surface of the Ag monolayer under different laser excitations. Meanwhile, different laser wavelengths were selected for investigating the enhancement mechanism of the system based on the viewpoint of the number of carriers and changes in the excitation energy. During this process, we found that the SERS peaks located at 1586 cm(-1) changed significantly because the intensity can be "borrowed" from exited transition and the molecule-to-semiconductor transition. In combination with the theories of Albrecht and Lombardi, this phenomenon was analyzed in detail, and the experimental results and theoretical research match well. This research regarding the semiconductor-based SERS substrates will expand the basic theory of SERS enhancement and provide a theoretical basis for optical and biological applications. |
| 源URL | [http://ir.ciomp.ac.cn/handle/181722/60927]  |
| 专题 | 中国科学院长春光学精密机械与物理研究所 |
| 推荐引用方式 GB/T 7714 | Zhang, X. Y.,Han, D. L.,Pang, Z. Y.,et al. Charge Transfer in an Ordered AgCu2S4-MBA System Based on Surface-Enhanced Raman Scattering[J]. Journal of Physical Chemistry C,2018,122(10):5599-5605. |
| APA | Zhang, X. Y..,Han, D. L..,Pang, Z. Y..,Sun, Y. S..,Wang, Y. X..,...&Chen, L..(2018).Charge Transfer in an Ordered AgCu2S4-MBA System Based on Surface-Enhanced Raman Scattering.Journal of Physical Chemistry C,122(10),5599-5605. |
| MLA | Zhang, X. Y.,et al."Charge Transfer in an Ordered AgCu2S4-MBA System Based on Surface-Enhanced Raman Scattering".Journal of Physical Chemistry C 122.10(2018):5599-5605. |
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