壓電高分子較其他壓電材料具有高可撓曲性且生物相容性高等優點，在穿戴式元件的應用之中被廣泛應用，但目前比較起壓電係數高的無機壓電材料，仍有輸出過低的缺點。而在壓電高分子基材中混摻高壓電性的無機填料，已經被廣泛用來提高壓電奈米發電機的輸出功率。因此研究中為了改善高分子晶相的壓電性質，將藉由調控PVDF-TrFE/PMMA薄膜與氧化鋅的複合薄膜中氧化鋅奈米柱(ZnO nanorods)長寬比，用以調控和聚(偏二氟乙烯-三氟乙烯) (PVDF-TrFE)鐵電板晶之間的相互極化作用強度，使得薄膜壓電輸出大幅提升。
透過調控水熱法溶液的濃度及成份比例我們確認了溶液中氫氧根離子對氧化鋅晶體生成形貌的影響。再藉由壓電力顯微鏡 (PFM)的量測，發現不同長寬比的氧化鋅奈米柱與周圍PVDF-TrFE 鐵電板晶的相互極化作用強度不同，說明晶相間的相互極化會被晶相的極性大小影響而有所不同。透過PFM量測距離氧化鋅較遠的板晶壓電係數，確認了晶相間的相互極化作用會隨距離衰減，因此推測相互極化作用僅被侷限於小尺度範圍內。
為了提升薄膜整體壓電性質，添加富含未定域化電子的石墨烯以誘導偶極的方式與高分子板晶形成相互極化作用，解決氧化鋅及高分子板晶相互極化作用隨距離衰減的問題，使薄膜奈米壓電發電機的輸出提升6倍。

Blending piezoelectric polymer with piezoelectric inorganic fillers has been widely used to increase the output power of piezoelectric nanogenerators. Therefore, in order to improve the piezoelectric properties of polymer, the aspect ratio of zinc oxide nanorods in the composite film will be adjusted to control the mutual polarization effect between the ferroelectric crystals. The strength of the mutual polarization between them makes the piezoelectric output of the film greatly improved. By adjusting the concentration and composition ratio of the hydrothermal solution, we confirmed the influence of hydroxide ions in the solution on the morphology of zinc oxide crystals. Through the measurement of the piezoelectric force microscope(PFM), it is found that the mutual polarization strength of the ZnO nanorods with different aspect ratios and polymer is different, indicating that the mutual polarization between the crystal phases will be controlled by the crystal morphology.
Through the measurement PFM of the piezoelectric coefficient of the lamellar crystal far away from the zinc oxide, it is confirmed that the mutual polarization between the crystal phases will decay with the distance, so it is speculated that the mutual polarization is only limited to a small scale. In order to improve the overall piezoelectric properties of the film, graphene is added to induce dipoles to form mutual polarization with polymer lamellar crystals. Solving the problem of mutual polarization between zinc oxide and polymer lamellar crystals will decay with distance. The output of thin-film piezoelectric nanogenerators is increased by 6 times.

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