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Radiation efficiency of heavily doped bulk n-InP semiconductor

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arxiv 1003.6095 v1 pith:GROKPEG4 submitted 2010-03-31 cond-mat.mtrl-sci

Oleg Semyonov , Arsen Subashiev , Zhichao Chen , Serge Luryi This is my paper · ORCID
classification cond-mat.mtrl-sci
keywords n-inprecombinationbeendifferentdopedeffectefficiencyheavily
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Recombination of minority carriers in heavily doped n-InP wafers has been investigated using spectral and time-resolved photoluminescence at different temperatures. Studies of the transmitted luminescence were enabled by the partial transparency of the samples due to the Moss-Burstein effect. Temporal evolution of the transmitted luminescence shows virtually no effect of surface recombination but is strongly influenced by photon recycling. Temperature dependence of the decay time suggests Auger recombination as the dominant non-radiative process at room temperature. Radiative quantum efficiency has been evaluated at different doping levels and at 2x1018 cm-3 it is found to be as high as 97%, which makes n-InP suitable for scintillator application.

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