Abstract

High-performance HgCdTe photodiodes have been formed by successive growth of p- and n-type epitaxial layers on CdTe substrates via the liquid phase epitaxy technique. These diodes exhibit high resistance-area (R0 A) products at high temperatures: R0 A products of 1 and 30 Ω cm2 have been observed at 283 and 200 K, respectively, for Hg0.68Cd0.32Te (λco=4.0 μm at 200 K). The saturation current density for the grown junction photodiode at 300 K is 0.12 A/cm2.

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