InP was heteroepitaxially deposited onto CdS single-crystal substrates by chemical vapor deposition using phosphine (PH3), HCl and indium as reactants. Single-crystalline films were deposited at substrate temperatures as low as 450°C. Scanning Auger microscopy shows that the films are InP and that formation of solid solutions between the CdS and the InP is minimal. The as-grown films are n type with residual donor densities of 4 × 1016-4 × 1017 cm-3.
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