Uniform thin films of poly(vinylidene fluoride)-trifluoroethylene copolymers were spin-coated and their functional electrical properties were investigated after corona poling. The copolymers were poled in the gel state at room temperature (RT) without stretching or annealing treatment. This E-field crystallisation processing method at RT leads to the formation of improved ferroelectric and pyroelectric properties in the investigated thin films. That processing method has great potential for ferroelectric material coatings on thermally highly sensitive substrates. The selected composition (∼1 µm thick composites of 65/35 mol% PVDF-TrFE) of the copolymer produced a pyroelectric coefficient value of 36 ± 3 µC/m²K¹, a dielectric constant of 9, and a dielectric loss of about 0.018 at a frequency of 1 kHz under ambient conditions.

均匀的聚（偏二氟乙烯）-三氟乙烯共聚物薄膜被旋涂，并在电晕极化后研究了它们的功能电性能。共聚物在室温 (RT) 下以凝胶状态极化，无需拉伸或退火处理。这种在室温下的电场结晶处理方法导致在研究的薄膜中形成改进的铁电和热电性能。这种处理方法对于在热敏感基板上涂覆铁电材料具有巨大潜力。共聚物的选定组合物（约 1 µm 厚的 65/35 mol% PVDF-TrFE 复合材料）产生的热电系数值为 36 ± 3 µC/m ² K ¹，介电常数为 9，在环境条件下 1 kHz 频率下的介电损耗约为 0.018。