P-Type Conduction in ZnS Grown by Vapor Phase Epitaxy
- 1 April 1989
- journal article
- Published by IOP Publishing in Japanese Journal of Applied Physics
- Vol. 28 (4A) , L535
- https://doi.org/10.1143/jjap.28.l535
Abstract
Low-resistivity p-type ZnS layers have been grown on GaAs substrates by vapor-phase epitaxy from a Zn-added ZnS powder source, using an open tube system under a NH3-added hydrogen flow. The simultaneous addition of NH3 and Zn has been shown to be essential for the appearance of p-type conduction. The room temperature Hall-effect measurement of a grown layer revealed the hole concentration to be 6×1018 cm-3 and the mobility to be 40 cm2/(V·s). The p-ZnS/n-GaAs heterojunction showed good rectifying behavior and exhibited an infrared emission, having a peak photon energy corresponding to the band gap energy of GaAs under forward bias.Keywords
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