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2018 | OriginalPaper | Buchkapitel

3. Self-Assembly of Silver Nanoparticles with Sub-nanometer Separations

verfasst von : Dr. Shu Fen Tan

Erschienen in: Molecular Electronic Control Over Tunneling Charge Transfer Plasmons Modes

Verlag: Springer Singapore

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Abstract

A bottom-up method was developed to fabricate structures of the form Ag-SAM-Ag (where SAM = self-assembled monolayer). Silver nanocubes with edge lengths of 30–40 nm were synthesized via established methods, with mixed SAMs of thiolates and dithiolates on their surfaces. The SAMs were used to control the self-assembly process and the width of the sub-nanometer gap sizes. The fabricated structures were characterized by various techniques: transmission electron microscopy (TEM), scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), Ultraviolet photoelectron spectroscopy (UPS), and UV-visible spectroscopy (UV-Vis). It was demonstrated that the SAMs control the structure’s optical properties and provide molecular-electronic control over the barrier heights of the studied system. The synthesis routines discussed here will be used in Chap. 4 to demonstrate quantum plasmonics.

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Metadaten
Titel
Self-Assembly of Silver Nanoparticles with Sub-nanometer Separations
verfasst von
Dr. Shu Fen Tan
Copyright-Jahr
2018
Verlag
Springer Singapore
DOI
https://doi.org/10.1007/978-981-10-8803-2_3

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