Significant Chiral Signal Amplification of Langmuir Monolayers Probed by Second Harmonic Generation
文献类型：期刊论文
| 作者 | Lv, Kai; Lin, Lu; Wang, Xiaoyu; Zhang, Li; Guo, Yuan; Lu, Zhou; Liu, Minghua |
| 刊名 | journal of physical chemistry letters
 |
| 出版日期 | 2015-05-07 |
| 卷号 | 6期号:9页码:1719-1723 |
| 英文摘要 | with the development of the nonlinear optical technique such as shg (second harmonic generation), the in situ measurements of the chirality in the monolayers at the air/water interface have become possible. however, when performing the shg measurement of the chirality in a monolayer, it is still a great challenge to obtain the chiral signals with a good s/n (signal-to-noise) ratio. in this letter, interfacial assemblies with induced supramolecular chirality were used to amplify the weak chiral shg signals from the monolayers at the air/water interface. tetrakis(4-sulfonatophenyl) porphyrin (tpps) j aggregates were used as the subphase, and when chiral amphiphilic molecules were spread on it, chiral domains of the amphiphile/tpps j aggregates were formed and then significantly amplified chiral signals that otherwise could not be detected. moreover, the sign of the dce (degree of chiral excess) changed with the chirality of the amphiphilic molecules, thus providing a possible way to obtain the absolute chiral information in situ in the monolayers. |
| WOS标题词 | science & technology ; physical sciences ; technology |
| 类目[WOS] | chemistry, physical ; nanoscience & nanotechnology ; materials science, multidisciplinary ; physics, atomic, molecular & chemical |
| 研究领域[WOS] | chemistry ; science & technology - other topics ; materials science ; physics |
| 关键词[WOS] | circular-dichroism spectroscopy ; nonlinear-optical properties ; sum-frequency generation ; 2nd harmonic-generation ; supramolecular chirality ; air/water interface ; pentacene monolayers ; achiral tpps ; in-situ ; films |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000355014900038 |
| 公开日期 | 2016-05-09 |
| 源URL | [http://cas-ir.dicp.ac.cn/handle/321008/146256]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 作者单位 | Chinese Acad Sci, CAS Key Lab Colloid Interface & Thermodynam, State Key Lab Mol React Dynam, Beijing Natl Lab Mol Sci,Inst Chem, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Lv, Kai,Lin, Lu,Wang, Xiaoyu,et al. Significant Chiral Signal Amplification of Langmuir Monolayers Probed by Second Harmonic Generation[J]. journal of physical chemistry letters,2015,6(9):1719-1723. |
| APA | Lv, Kai.,Lin, Lu.,Wang, Xiaoyu.,Zhang, Li.,Guo, Yuan.,...&Liu, Minghua.(2015).Significant Chiral Signal Amplification of Langmuir Monolayers Probed by Second Harmonic Generation.journal of physical chemistry letters,6(9),1719-1723. |
| MLA | Lv, Kai,et al."Significant Chiral Signal Amplification of Langmuir Monolayers Probed by Second Harmonic Generation".journal of physical chemistry letters 6.9(2015):1719-1723. |
入库方式： OAI收割
来源：大连化学物理研究所
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