Abstract:
A semiconductor device comprising contiguous layers of crystalline selenium and cadmium selenide with a P-N heterojunction therebetween disposed on a high work function electrode. A thin tellurium film is disposed between the electrode and the selenium layer, and acts as a buffer to provide compatibility between the selenium crystalline structure and the structure of the underlaying electrode. When employed as a stress-sensitive transducer, the device is disposed on a flexible substrate. The device may also be employed as a thin-film diode.
Abstract:
A low dark current photoconductive body includes an aluminum oxide overlayer on a cadmium selenide base layer. A transition region is provided at the interface region between the base layer and the overlayer and consists of a graded transition of cadmium and selenium with increasing amounts of aluminum and oxygen. An alternative body is disclosed omitting the overlayer. A blocking contact is provided within a portion of the body including the overlayer and/or the transition region.
Abstract:
A rectifying junction suitable for use in photosensitive devices is fabricated between a polycrystalline selenium layer and an electrode of n-type or low work function metal material.