Investigation of thermally generated gold nanoparticles with AFM

Author

Bonyar, Attila ; Wimmer, Balazs ; Csarnovics, Istvan

Author_Institution

Dept. of Electron. Technol., Budapest Univ. of Technol. & Econ., Budapest, Hungary

fYear

2013

fDate

24-27 Oct. 2013

Firstpage

31

Lastpage

34

Abstract

Gold nanoparticles (Au NPs) were generated by thermally annealing gold thin films (5-30 nm) which were sputtered on glass substrates. The conditions of the thermal annealing (temperature and annealing time) were varied in order to generate nanoparticles in different sizes. The size and distribution of the nanoparticles were characterized by atomic force microscopy (AFM). The Au NP modified surface is intended to be used as sensor transducer element in a surface plasmon resonance imaging (SPRi) instrument. Thus we investigated the size of the generated NPs in function of the annealing parameters in order to reach optimal conditions for the NP signal amplification in the SPRi device.

Keywords

annealing; atomic force microscopy; gold; metallic thin films; nanofabrication; nanoparticles; sputter deposition; surface plasmon resonance; AFM; Au; SiO₂; atomic force microscopy; glass substrates; gold thin films; sensor transducer; size 5 nm to 30 nm; sputtering; surface plasmon resonance imaging; thermal annealing; thermally generated gold nanoparticles; Annealing; Gold; Microscopy; Nanoparticles; Optical sensors; Optical surface waves; Plasmons; atomic force microscope (AFM); gold nanoparticle; surface plasmon resonance (SPR);

fLanguage

English

Publisher

ieee

Conference_Titel

Design and Technology in Electronic Packaging (SIITME), 2013 IEEE 19th International Symposium for

Conference_Location

Galati

Type

conf

DOI

10.1109/SIITME.2013.6743639

Filename

6743639