Journal
BEILSTEIN JOURNAL OF NANOTECHNOLOGY
Volume 6, Issue -, Pages 2345-2353Publisher
BEILSTEIN-INSTITUT
DOI: 10.3762/bjnano.6.242
Keywords
3-aminopropyletriethoxysilane; electrostatic interaction; functionalization; gold nanoparticles; self-assembled monolayer; self-organization
Funding
- Department of Physics at Sultan Qaboos University
- Chair in Nanotechnolgy at Sultan Qaboos University
- SQU-UAE
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The self-organization of monolayer gold nanoparticles (AuNPs) on 3-aminopropyltriethoxysilane (APTES)-functionalized glass substrate is reported. The orientation of APTES molecules on glass substrates plays an important role in the interaction between AuNPs and APTES molecules on the glass substrates. Different orientations of APTES affect the self-organization of AuNps on APTES-functionalized glass substrates. The as grown monolayers and films annealed in ultrahigh vacuum and air (600 degrees C) were studied by water contact angle measurements, atomic force microscopy, X-ray photoelectron spectroscopy, UV-visible spectroscopy and ultraviolet photoelectron spectroscopy. Results of this study are fundamentally important and also can be applied for designing and modelling of surface plasmon resonance based sensor applications.
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