Design of Readout Circuit for Pyroelectric Detector Based on Novel Pyroelectric Materials
Recently, scientists discovered that relaxor-based ferroelectric single crystals, such as (1-x)Pb(Mg1/3Nb2/3)O3 -xPbTiO3 (PMN-xPT, or PMNT) single crystals, exhibit extra-high pyroelectric responses. They are promising candidates for optical power detectors in broad bandwidth at ultraviolet, visible and infrared wavelength.To fabricate high performance infrared detectors with relaxor-based single crystals, the related readout circuit was investigated to increase signal-to-noise ratio, and 8×1 CMOS readout circuit is fabricated to gain very weak current, which provides a solution for uncooled large focal plane arrays devices based on relaxor-based single crystals.
Qunjie Xu, Honghua Ge and Junxi Zhang
J. Wang et al., "Design of Readout Circuit for Pyroelectric Detector Based on Novel Pyroelectric Materials", Advanced Materials Research, Vols. 361-363, pp. 1918-1921, 2012