Optoelectronic ferroelectric sensor and signal generating device

摘要

An optoelectronic temperature sensor comprises a doped ferroelectric oxide thin film that exhibits a detectable change in luminescence intensity with temperature as a result of an oxide phase transition when the sensor is heated or cooled through a particular temperature range. The phase of the doped ferroelectric oxide affects the intensity of the luminescence emitted by the doped ferroelectric oxide and thereby provides a temperature dependent parameter or output. The optoelectronic temperature sensor of the present invention can comprise a rare earth or transition metal doped ferroelectric oxide thin film.