Pyroelectric coefficient measurements were made at various temperatures for
poled and unpoled samples of PVDF films. Samples were produced using the s
pin-coating technique onto glass substrates. Experiments were made using th
e quasi-static technique. PVDF samples were poled at various electric field
strengths and the relation between poling field strength and the pyroelect
ric coefficient was investigated. The effect of the poling temperature was
also studied. The maximum pyroelectric coefficient was obtained for a polin
g temperature of 340 K and for a poling field strength of 14MVm(-1). Dielec
tric permitivity and dielectric loss measurements were also performed in th
e 125-375 K temperature range. (C) 2001 Kluwer Academic Publishers.