SUBPICOSECOND CARRIER LIFETIMES IN RADIATION-DAMAGED GAAS

被引:93
作者
LAMBSDORFF, M [1 ]
KUHL, J [1 ]
ROSENZWEIG, J [1 ]
AXMANN, A [1 ]
SCHNEIDER, J [1 ]
机构
[1] FRAUNHOFER INST APPL SOLID STATE PHYS,W-7800 FREIBURG,GERMANY
关键词
D O I
10.1063/1.105061
中图分类号
O59 [应用物理学];
学科分类号
摘要
We investigate the dependence of carrier lifetimes in radiation-damaged GaAs on proton implantation dose by means of time-resolved reflectivity and photoconductivity experiments with subpicosecond resolution. The carrier lifetimes decrease with increasing implantation dose at low implantation levels whereas beyond the "amorphization dose" a saturation at 0.5 ps can be observed due to a saturation of the defect density.
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页码:1881 / 1883
页数:3
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