Plasmon Resonance in A-С : Н Films Modified with Platinum Nanoclusters

Plasmon Resonance in A-С : Н Films Modified with Platinum Nanoclusters

Optical density spectra of amorphous diamond-like films of hydrogenated carbon modified with platinum impurity (a-C : HPt) have been investigated. a-C : HPt films were prepared by the method of ion plasma magnetron co-sputtering of graphite and platinum in argon-hydrogen atmosphere. Platinum con...

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Bibliographic Details
Main Authors: O. Prikhodko, N. Manabaev, N. Guseinov, S. Maksimova, E. Muhametkarimov, S. Mikhailova, E. Daineko
Format: Article
Language:English
Published: Sumy State University 2014-07-01
Series:Журнал нано- та електронної фізики
Subjects:
Amorphous diamond-like films of hydrogenated carbon (a-C 
 H) modified with platinum
Optical density
Nanoclusters
Plasmon resonance
Extinction sectio
Online Access:http://jnep.sumdu.edu.ua/download/numbers/2014/3/articles/jnep_2014_V6_03067.pdf
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Summary:Optical density spectra of amorphous diamond-like films of hydrogenated carbon modified with platinum impurity (a-C : HPt) have been investigated. a-C : HPt films were prepared by the method of ion plasma magnetron co-sputtering of graphite and platinum in argon-hydrogen atmosphere. Platinum content in the films was varied from 0 to 9 at. %. In the optical spectra of a-C : HPt films with different Pt content the peaks of resonance absorption in the range from 496 to 501 nm were found, whilst in the spectrum of a-C : H films the absorption peak is absent. The appearance of these absorption peaks in a-C : HPt films is explained by resonance plasmon vibrations of free electrons in platinum nanoclusters. The average diameter of the Pt nanoclusters was estimated using electromagnetic theory of Mie, and it is ~ 5 nm.
ISSN:2077-6772

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