Abstract:The electrical and optical properties of non-doped and Te doped 6.5 periods AlGaAsSb/AlAsSb Bragg mirrors on InP grown by MBE with different types of interfaces between ternary and quaternary layers are reported. The techniques employed were photoluminescence, reflectivity and IxV measurements. The digital alloy gradient interface seems to be the best alternative to optimize conduction without significant reflectivity losses. Key words: Semiconductor. Bragg mirror. AlGaAsSb. AlAsSb.
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