A comparison of carbon and zinc doping in GaAs/AlGaAs lasers bandgap-tuned by impurity-free vacancy disordering

Ayling, S.G., Bryce, A.C., Gontijo, I., Marsh, J.H. and Roberts, J.S. (1994) A comparison of carbon and zinc doping in GaAs/AlGaAs lasers bandgap-tuned by impurity-free vacancy disordering. Semiconductor Science and Technology, 9(11), pp. 2149-2151. (doi: 10.1088/0268-1242/9/11/020)

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Abstract

Bandgap tuning by impurity-free vacancy disordering was investigated on carbon and zinc p-doped laser structures. Zinc diffused during annealing and consequently only carbon-doped material lased. After annealing, threshold current densities rose from 225 to 255 A cm-2 due to an increase in the transparency current; the gain constant of the quantum wells remained constant.

Item Type:Articles
Additional Information:This work was supported by the Science and Engineering Research Council of the UK, under Grant Numbers GR/H/82471 and GR/F/65248.
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Marsh, Professor John
Authors: Ayling, S.G., Bryce, A.C., Gontijo, I., Marsh, J.H., and Roberts, J.S.
College/School:College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering
Journal Name:Semiconductor Science and Technology
Publisher:IOP Publishing
ISSN:0268-1242
ISSN (Online):1361-6641

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