PYROELECTRIC RESPONSE OF TGS-PEO COMPOSITES

0-3 type composites of triglycine sulphate, with high molecular weight polyethylene oxide were prepared by hot-pressing. FT Raman spectrosco py was used to control the interaction of glycine ions with the polyme r. Pyroelectric and electric response was studied for composite sample s in the form of diaphragm fixed on its perimeter and poled in low de field (E-p = 6MV/m). Pyroelectric response in the current mode of TGS/ PEO composites decreases on increasing the light modulation frequency. Pyroelectric coefficient evaluated for TGS/PEO composites at 10 Hz am ounts to similar to 7.10(-5) C/m(2)K.