We report an intriguing triboelectrification behavior of thermally treated P(VDF-TrFE) polymers. Cooled (C-) and annealed (A-) P(VDF-TrFE) films were prepared by the rapid cooling of the melt solution and the subsequent annealing, respectively. The C–P(VDF-TrFE) had sparse grains and small elastic modulus and surface charge density, while, the A-P(VDF-TrFE) had dense grains and large elastic modulus and surface charge density. When the polymers contacted ITO electrodes, the triboelectric outputs of C-(PVDF-TrFE) were larger than those of A-P(VDF-TrFE). When the polymers contacted each other, the triboelectric outputs of different P(VDF-TrFE) films were significantly larger than those of similar P(VDF-TrFE) films. Based on detailed X-ray photoemission spectroscopy results, we suggested that roughness-induced frictional heat and elastic modulus differences may play an important role in minute material and/or ion transfer during the triboelectrification of identical P(VDF-TrFE) polymers.

我们报告了热处理 P(VDF-TrFE) 聚合物的有趣摩擦起电行为。冷却 (C-) 和退火 (A-) P(VDF-TrFE) 薄膜分别通过熔体溶液的快速冷却和随后的退火制备。C-P(VDF-TrFE)晶粒稀疏，弹性模量和表面电荷密度小，而AP(VDF-TrFE)晶粒致密，弹性模量和表面电荷密度大。当聚合物接触ITO电极时，C-(PVDF-TrFE)的摩擦电输出大于AP(VDF-TrFE)的摩擦电输出。当聚合物相互接触时，不同 P(VDF-TrFE) 薄膜的摩擦电输出显着大于类似 P(VDF-TrFE) 薄膜的摩擦电输出。根据详细的 X 射线光电子能谱结果，