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Luminescence Study of The INTRA-4f Emissions from GaAs:(Er+O) and AlxGal1−xAs:(Er+O)
Published online by Cambridge University Press: 21 February 2011
Abstract
A systematic photoluminescence study of erbium and oxygen co-implantation into GaAs and AlxGal1−xAs with × = 0.1, 0.2, 0.3, and 0.4 was carried out. The addition of oxygen greatly enhanced the Er emission intensity from AlxGal1−xAs:Er while the O and Er co-doping into GaAs rather made the Er emission intensity decrease from that of the GaAs:Er. The Er emission intensity from AlxGal1−xAs:(Er+O) generally increases with increasing Al mole fraction and O dose up to 1 × 10 15/cm2, but it does not depend much on the substrate conductivity.
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- Copyright © Materials Research Society 1993
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