Preparation and Some Characteristics of Single-Crystal Indium Phosphide

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A technique for purifying phosphorus, reacting elemental indium and phosphorus, purifying the compound, indium phosphide, by a directional re‐crystallization, and growing large crystals all in one glass tube is described. A crystal puller for decomposable solids is described in detail and results for indium phosphide discussed. The electron mobility as a function of temperature is given for two single‐crystal specimens. An electron mobility of 4000 cm 2 /v‐sec at 300°K for a specimen containing a carrier concentration of was achieved. Lifetime measurements by the photoconductivity‐decay method are discussed. The optical‐transmission characteristics of specimens containing electron concentrations of 10 10 /cm 3 and 10 15 /cm 3 are presented.