S K Srivastava et al 2006 Nanotechnology 17 2518 doi:10.1088/0957-4484/17/10/013
S K Srivastava1,3, D K Avasthi1 and E Pippel2
Show affiliationsThe formation of nanocolumns of C clusters in thin films of a Si based inorganic polymer, allylhydridopolycarbosilane (HPCS), as a result of irradiation of the films with 100 MeV Au ions at fluences of 2 × 1012 and 5 × 1012 ions cm−2 is demonstrated. The evolution and arrangement of the C clusters while subjected to the irradiation fluence is investigated by energy filtered cross-sectional transmission electron microscopy. Irradiation results in evolution of C clusters of sizes ≤5 nm, and their alignment along channels of ~10 nm diameter, which are essentially the latent tracks created by the Au ions in the polymer. At the fluence of 5 × 1012 ions cm−2, these clusters become densely packed in the channels. The growth of such C cluster filled nanocolumns is shown to be a consequence of two simultaneous diffusion processes taking place during the transient molten phase of the latent tracks.
61.80.Jh Ion radiation effects
66.30.Pa Diffusion in nanoscale solids
68.55.-a Thin film structure and morphology
Soft matter, liquids and polymers
Surfaces, interfaces and thin films
Issue 10 (28 May 2006)
Received 31 January 2006, in final form 13 March 2006
Published 24 April 2006
S K Srivastava et al 2006 Nanotechnology 17 2518
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