Broadband infrared detectors on the basis of PATGS/Pt(IV) single crystals

Single crystals of triglycine sulfate (TGS) doped with D-phenylalanine and with Pt(IV) ions (PATGS/Pt(IV)) were grown from aqueous solution by means of the slow cooling method. On the samples prepared from 〈1 1 0〉 and 11¯0 growth pyramids we measured the relevant physical properties, in particular: spontaneous polarization Ps, values of coercive field Ec, internal electrical field Eb, dielectric permittivity ɛr, dielectric losses tan δ and hysteresis loops. The first series of pyroelectric detectors were prepared from these materials; their fundamental parameters are presented.