Infrared photovoltaic radiation detector with thin anisotropic tellurium film

Abstract The paper relates an infrared radiation detector using a thin film of tellurium deposited by evaporation under 10 -4 –10 -5 torr vacuum and oblique incidence on a NaCl support. The cell has a responsivity of about 450 μV/W and a response time of about 1 μsec. The signal-to-noise ratio at room temperature is 90:1 at 1 W signal.