High-temperature diode formed by epitaxial GaP layers

The preparation of pure, undoped, high-temperature GaP grown by liquid-phase epitaxy is reported. Results are presented of studies of GaP p-n structures grown at various crystallization initiation temperatures, using the capacitance-voltage (C-V) method and deep-level transient spectroscopy (DLTS). The characteristics of GaP are determined by the low concentration of background impurities and deep-level defects. Measurements of the temperature dependence of the forward branch of the current-voltage characteristic showed that the thermometric characteristic of the diode is linear between −191 and ∼+600 °C.

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