PHOTOVOLTAIC ULTRAVIOLET SENSOR

摘要

A photovoltaic ultraviolet sensor comprises a zinc oxide single crystal substrate. On the +c face of the zinc oxide single crystal substrate, an ultraviolet receiver is formed. The exemplary ultraviolet receiver includes a Schottky electrode which, when receiving ultraviolet rays, produces a voltage in cooperation with the zinc oxide single crystal substrate. The uitraviolet sensor does not have any sensitivity to t he visible rays. The ultraviolet sensor has a relatively fast response of several microseconds.