Growth of α-Al2O3 films by molecular layer epitaxy
- 12 October 1987
- journal article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 51 (15), 1143-1145
- https://doi.org/10.1063/1.98765
Abstract
Single‐crystal α‐Al2O3 films are, for the first time, successfully grown on sapphire wafers above ∼600 °C by the molecular layer epitaxy (MLE) method using AlCl3 vapor and a He 15%O2 gas mixture. The average growth rate observed barely depends on the substrate temperature, being ∼0.09 nm per cycle of gas transport, under the used growth conditions. The epitaxial growth of α‐Al2O3 films on single‐crystal Nb films at ∼500 °C by the MLE method is also confirmed for the first time.Keywords
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