Laser-beam writing on amorphous chalcogenide films: crystallization kinetics and analysis of amorphizing energy
- 1 January 1973
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 22 (1), 48-49
- https://doi.org/10.1063/1.1654469
Abstract
By using laser pulses, the kinetics of crystallization of Te‐rich films were studied as a function of light intensity and pulse duration. The initial devitrification was found to be temperature activated (ΔE≃1–1.6 eV), and no evidence for photocrystallization was found. Amorphizing energies for 100‐nsec pulses ranged from 0.13 to 0.55 nJ/μ2, depending on the degree of crystallization. Part of this increase is due to heat‐of‐fusion effects, but most of it is due to increased thermal conductivity with increased crystallization.Keywords
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