Abstract
The results of optical absorption and dc electrical conductivity measurements on flash-evaporated amorphous III-V compounds are analyzed in terms of defects. From a comparison of stoichiometric amorphous GaAs and GaP, it is concluded that amorphous GaP contains defects related to the presence of wrong bonds, besides dangling-bond-type defects which are common to both compounds. Effects associated with large deviations from stoichiometry (Sb excess) in amorphous GaSb are also considered.
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