CUED Publications database

On the photoluminescence of a-C:H films

Tomozeiu, N and Seekamp, J and Ferrari, A and Niemann, J (2000) On the photoluminescence of a-C:H films. Journal of Optoelectronics and Advanced Materials, 2. pp. 241-246. ISSN 1454-4164

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a-C:H films deposited from methane and helium mixture in a capacitively coupled rf plasma were found to show photoluminescence (PL) with peak intensities at energies far above the Taue gap of these films. Apart from the PL the films were investigated with respect to their IR and UV/VIS absorption properties as well as their Raman spectra were examined. The ultraviolet (UV) and blue luminescence from hard a-C:H thin films are explained by incorporation of polycyclic hydrocarbons from gas-phase reactions in the methane helium plasma into the film.

Item Type: Article
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Date Deposited: 16 Jul 2015 13:09
Last Modified: 08 Oct 2015 21:19