有機鐵電小分子擁有不錯的極化強度與熱穩定性，若能結合有機鐵電高分子的可撓曲性以及生物相容性，在可穿戴式與可攜式裝置，甚至是奈米發電機(Nanogenerator)等方面將有巨大的應用價值。以兩種類純有機分子互相結合，以提升薄膜整體的極化特性，如壓電響應、奈米發電機輸出等，在學界較為少見且缺少這方面的研究，故透過結合有機小分子CRCA結晶與高分子PVDF-TrFE的策略，探討兩相間是否有互相極化的效應，提升薄膜的性能。
將小分子CRCA析出於已結晶的PVDF-TrFE/PMMA薄膜後，透過掃描式電子顯微鏡(SEM)與原子力顯微鏡(AFM)觀察微觀形貌，發現小分子似乎有選擇性的分布於PVDF-TrFE板晶上的傾向，並且微示差掃描熱卡分析儀(DSC)的分析也表明兩相間親和性不錯。以此為起點，進一步分析小分子晶體在各種不同製程後的結晶與相位的演變，發現小分子在高溫下有晶相合併行為，且XRD繞射的證據也表明，透過製程的手段，可以微幅調整小分子的分子結構與其結晶取向。
藉由靜電力顯微鏡(EFM)的量測，發現在熱處理後，小分子晶體與周圍的鐵電板晶極化方向不同，且利用壓電響應力顯微鏡(PFM)量測到因為互相極化而提升的壓電響應效應，證明了有機晶相間有互相極化的效果，且互相極化效應在兩晶相互相堆疊的垂直方向上，似乎存在一作用距離的極限。再利用垂直於基板方向的電場施加於混成薄膜後，觀察到小分子晶體隨著電場強度的增加，極化軸方向與鐵電高分子板晶極化軸方向逐漸相同，暗示了可以利用電場克服兩相間的作用力，調控小分子的極性軸方向的轉動。

Organic ferroelectric small molecules have good polarization strength and thermal stability. With the flexibility and biocompatibility of organic ferroelectric polymers, they have potential for applications in wearable and portable devices, including nanogenerators.
The combination of two types organic molecules could enhance the overall polarization properties of thin films, such as piezoelectric response and nanogenerator output, is a relatively underexplored area in the academic fields, and lack of detailed in-depth research.
By combining crystalline organic small molecule CRCA with the polymer PVDF-TrFE, we investigate mutual polarization effect between the two phases to enhance thin film performance.
Using scanning electron microscopy (SEM) and atomic force microscopy (AFM), we observed selective distribution tendency of small molecules CRCA on PVDF-TrFE lamellae area. Differential scanning calorimetry (DSC) analysis further confirmed affinity between the two phases. It was found that CRCA exhibited crystalline phase merge behavior at elevated temperatures, with X-ray diffraction (XRD) evidence suggesting that control the process could adjust the molecular structure and crystal orientation of small molecules. we observed polarization direction differences between small molecule crystals and the surrounding ferroelectric lamellae after heat treatment by electrostatic force microscopy (EFM). Piezoresponse force microscopy (PFM) demonstrated an enhanced piezoelectric response effect attributed to mutual polarization between organic crystals.
Applying an electric field perpendicular to the substrate direction to the hybrid film revealed with increasing electric field intensity, the polarization axis of CRCA crystals gradually aligned with that of ferroelectric polymer lamellae. This suggests the potential to control the polarity axis direction of small molecules through electric fields, overcoming interphase forces.

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