Influence of ion irradiation on the morphology, structure, and optical properties of gold nanoparticles synthesized in SiO2 and Al2O3 dielectric matrices

• Published in: Surface investigation, x-ray, synchrotron and neutron techniques Vol. 6; no. 4; pp. 681 - 687
• Main Authors: Tetelbaum, D. I., Mikhaylov, A. N., Guseinov, D. V., Belov, A. I., Kostyuk, A. B., Korolev, D. S., Fedonin, M. P., Pavlov, D. A., Bobrov, A. I., Nikolitchev, D. E., Boryakov, A. V.
• Format: Journal Article
• Language: English
• Published: Dordrecht SP MAIK Nauka/Interperiodica 01.07.2012
• Subjects: Chemistry and Materials Science; Materials Science; Surfaces and Interfaces; Thin Films; Surface Plasmon Resonance; Spectroscopic Ellipsometry; Neutron Technique; Gold Atom; Surface Investigation
• DOI: 10.1134/S1027451012080162
• ISSN: 1027-4510

Irradiation of fused quartz (SiO 2 ) and sapphire (Al 2 O 3 ) by Ne + and F + ions with medium energies and their subsequent annealing enables us to control the intensity and frequency of surface plasmon resonance in Au nanoparticles (NPs) synthesized in oxide matrices. The control process can be implemented because NPs dissolve during irradiation and undergo partial reconstruction at annealing. The degree of reconstruction depends on the matrix material and the type and dose of ions. It has been found that the difference in the results obtained by means of irradiation with ions with similar masses is substantially affected by the chemical nature of the ions. The composition, morphology, and structure of the unirradiated and irradiated layers are investigated by transmission electron microscopy, X-ray photoelectron spectroscopy, and spectroscopic ellipsometry.