Effects of poling conditions on responsivity and uniformity of polarization of PVF2 pyroelectric detectors

Abstract

A large number of pyroelectric detectors, fabricated from commercially available PVF2 and poled under a variety of conditions of voltage, temperature, and time have been evaluated for responsivity and uniformity of polarization in the direction of the poling field. Results show that uniformity of polarization (a requirement for flat frequency response) can be achieved and responsivities as high as 2.9 μA/W can be obtained.