Optoelectronic ferroelectric sensor and signal generating device

Details Optoelectronic ferroelectric sensor and signal generating device Optoelectronic ferroelectric sensor and signal generating device

1995-06-07

1997-09-02

Le, Que

Radiant energy

Photocells; circuits and apparatus

Photocell controlled circuit

2503382, 374161, H01J 4014

Patent

active

056635567

ABSTRACT:
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.

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