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Microstructural and plasmonic modifications in Ag-TiO₂ and Au-TiO₂ nanocomposites through ion beam irradiation

Chakravadhanula, V. S. K.; Mishra, Y. K.; Kotnur, V. G.; Avasthi, D. K.; Strunskus, T.; Zaporotchenko, V.; Fink, D.; Kienle, L.; Faupel, F.


The development of new fabrication techniques of plasmonic nanocomposites with specific properties is an ongoing issue in the plasmonic and nanophotonics community. In this paper we report detailed investigations on the modifications of the microstructural and plasmonic properties of metal–titania nanocomposite films induced by swift heavy ions. Au–TiO2 and Ag–TiO2 nanocomposite thin films with varying metal volume fractions were deposited by co-sputtering and were subsequently irradiated by 100 MeV Ag8+ ions at various ion fluences. The morphology of these nanocomposite thin films before and after ion beam irradiation has been investigated in detail by transmission electron microscopy studies, which showed interesting changes in the titania matrix. Additionally, interesting modifications in the plasmonic absorption behavior for both Au–TiO2 and Ag–TiO2 nanocomposites were observed, which have been discussed in terms of ion beam induced growth of nanoparticles and structural modifications in the titania matrix.

Verlagsausgabe §
DOI: 10.5445/IR/110097718
Veröffentlicht am 18.04.2018
DOI: 10.3762/bjnano.5.154
Zitationen: 42
Web of Science
Zitationen: 38
Zitationen: 40
Cover der Publikation
Zugehörige Institution(en) am KIT Helmholtz-Institut Ulm (HIU)
Institut für Nanotechnologie (INT)
Karlsruhe Nano Micro Facility (KNMF)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2014
Sprache Englisch
Identifikator ISSN: 2190-4286
KITopen-ID: 110097718
HGF-Programm 43.16.02 (POF II, LK 02) KNMF laboratory for microscopy a.spect.
Erschienen in Beilstein journal of nanotechnology
Verlag Beilstein-Institut
Band 5
Seiten 1419-1431
Schlagwörter noble metal–titania nanocomposite, surface plasmon resonance, swift heavy ions
Nachgewiesen in Scopus
Web of Science
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