Zinc Diffusion Across the Heterojunction in InP/InGaAsP Heterostructures
- 1 November 1988
- journal article
- Published by IOP Publishing in Japanese Journal of Applied Physics
- Vol. 27 (11A) , L2112
- https://doi.org/10.1143/jjap.27.l2112
Abstract
The influence of temperature treatment on the p-doping concentrations near the interfaces of an InP/InGaAsP heterostructure has been investigated. During this treatment a significant out-diffusion of Zn from the p-InP layer into the adjacent InGaAsP layers took place. Due to different segregation coefficients of Zn in InP and InGaAsP an out-diffusion of Zn from the InP into the InGaAsP layer also occurred when the p-doping in InP is lower than in InGaAsP. In InP/InGaAsP lasers such an out-diffusion of Zn into the active InGaAsP layer usually leads to enhanced threshold currents.Keywords
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