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Charge Transfer between Metal Nanoparticles Interconnected with a Functionalized Molecule Probed by Surface‐Enhanced Raman Spectroscopy

2006; Wiley; Volume: 45; Issue: 24 Linguagem: Inglês

10.1002/anie.200504419

1521-3773

Qun Zhou, Xiaowei Li, Qiang Fan, Xingxia Zhang, Junwei Zheng,

Advanced biosensing and bioanalysis techniques

Good vibrations: Metal–molecule–metal nanosystems are fabricated by the self-assembly of gold and silver nanoparticles interconnected with 4-aminothiophenol (PATP) molecules (see picture). The b2 vibrational modes of the PATP molecules are greatly enhanced by near-infrared excitation, as a result of charge transfer between the metal nanoparticles coupled with the vibrations of the PATP molecules.