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

Authors O. Prikhodko , N. Manabaev, N. Guseinov , S. Maksimova, E. Muhametkarimov, S. Mikhailova, E. Daineko

Al-Farabi Kazakh National University, 71, Al-Farabi Str., 050038 Almaty, Kazakhstan

Issue Volume 6, Year 2014, Number 3
Dates Received 19 May 2014; published online 15 July 2014
Citation O. Prikhodko, N. Manabaev, N. Guseinov, et al., J. Nano- Electron. Phys. 6 No 3, 03067 (2014)
PACS Number(s) 81.05.Uw, 68.55.Ln
Keywords Amorphous diamond-like films of hydrogenated carbon (a-C ,  H) modified with platinum, Optical density, Nanoclusters (4) , Plasmon resonance (2) , Extinction section.
Annotation 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.

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