Fluorescent Self-Assembled Molecular Monolayer on Graphene
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- 作者：Sylvain Le Liepvre ; Ping Du ; David Kreher ; Fabrice Mathevet ; André-Jean Attias ; Céline Fiorini-Debuisschert ; Ludovic Douillard ; Fabrice Charra
- 刊名：ACS Photonics
- 出版年：2016
- 出版时间：December 21, 2016
- 年：2016
- 卷：3
- 期：12
- 页码：2291-2296
- 全文大小：570K
- ISSN：2330-4022
文摘
We report the first fluorescent molecular self-assembly on graphene. The quenching of the fluorescence of the adsorbed dye by the adjacent graphene is hindered at the molecular scale based on a spacer approach, through a specifically designed dual-functionalized self-assembling building block. This 3D tecton presents two faces, one forming a noncovalent graphene-binding pedestal and the other carrying a dye group linked by a spacer to the pedestal. The spontaneous ordering of the adsorbed layer is investigated by scanning tunneling microscopy, whereas the resulting optical properties of the whole graphene–dye hybrid system are characterized by absorption and fluorescence spectroscopies.