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Please use this identifier to cite or link to this item: http://eprint.iitd.ac.in/handle/2074/2519

Title: Comparative study of crystallization processes in Sb2Te3 films using laser and thermal annealing techniques
Authors: Reddy, G B
Dhar, A
Malhotra, L K
Sharmila, E K
Keywords: pin-hole free amorphous
disk-shaped crystallized
thermal crystallization
amorphous states
Issue Date: 1992
Citation: Thin Solid Films, 220(1-2), 111-115p.
Abstract: Adherent and pin-hole free amorphous Sb2Te3 thin films have been obtained by vacuum evaporation at substrate temperatures ≤25 °C. The films have been crystallized by thermal and laser annealing, and the crystallization processes monitored as a function of annealing temperature and laser scan speed. A comparative study of topography reveals disk-shaped crystallized areas in thermal crystallization and dendrite growth in the laser induced process. The crystallized films in both cases contain a single Sb2Te3 phase. Activation energy of 2 eV for crystallization, determined using differential scanning calorimetery indicates good room temperature stability of the amorphous states.
URI: http://eprint.iitd.ac.in/dspace/handle/2074/2519
Appears in Collections:Physics

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