title: Self-organization of gold nanoparticles on silanated surfaces.
abstract: 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 °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.
authors.affiliation: Physics Department, College of Science, Sultan Qaboos University, P.O. Box 36, Al-Khoudh, Muscat 123, Sultanate of Oman.
authors.forename: Htet H
authors.initials: HH
authors.lastname: Kyaw
authors.affiliation: Physics Department, College of Science, Sultan Qaboos University, P.O. Box 36, Al-Khoudh, Muscat 123, Sultanate of Oman.
authors.forename: Salim H
authors.initials: SH
authors.lastname: Al-Harthi
authors.affiliation: Physics Department, College of Science, Sultan Qaboos University, P.O. Box 36, Al-Khoudh, Muscat 123, Sultanate of Oman.
authors.forename: Azzouz
authors.initials: A
authors.lastname: Sellai
authors.affiliation: Chair in Nanotechnology, Water Research Center, Sultan Qaboos University, PO Box 17, Al-Khoudh, Muscat 123, Sultanate of Oman; Functional Materials Division, School of Information and Communication Technology, KTH Royal Institute of Technology, Isafjordsgatan 22, SE-164 40 Kista Stockholm, Sweden.
authors.forename: Joydeep
authors.initials: J
authors.lastname: Dutta
keywords: 3-aminopropyletriethoxysilane; electrostatic interaction; functionalization; gold nanoparticles; self-assembled monolayer; self-organization