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Abstract：
The optical properties of polyvinylidene fluoride (PVDF) polymer nanocomposite films incorporating SrTiO3/carbon nanotubes (CNTs) as nanofillers are investigated. PVDF/SrTiO3/CNTs films were prepared by the solution casting technique. X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), and scanning electron microscopy (SEM) analyses confirmed the incorporation of SrTiO3/CNTs into the PVDF matrix. The addition of nanofillers influenced the crystalline structure, morphology, and optical properties of the films. SEM images showed spherulite morphology, which is a spherical aggregate of crystalline polymer chains. The addition of a SrTiO3/CNTs nanofiller modified the polymer\'s electronic structure, causing a variation in the energy gap. The addition of SrTiO3/CNTs at 0.1 wt% increased the band gap, refractive index, and nonlinear optical properties of the PVDF films. These improvements indicate the potential of these nanocomposite films in optoelectronic applications such as solar cells, image sensors, and organic light-emitting diodes.
摘要：
研究了以SrTiO3/碳纳米管（CNT）为纳米填料的聚偏氟乙烯（PVDF）聚合物纳米复合膜的光学性能。通过溶液流延技术制备了PVDF/SrTiO3/CNTs薄膜。X射线衍射(XRD)傅里叶变换红外光谱(FTIR),和扫描电子显微镜（SEM）分析证实了SrTiO3/CNTs掺入PVDF基质中。纳米填料的添加影响了晶体结构，形态学,和薄膜的光学性能。SEM图像显示球晶形态，它是结晶聚合物链的球形聚集体。SrTiO3/CNTs纳米填料的加入改性了聚合物的电子结构,导致能隙的变化。添加0.1wt%的SrTiO3/CNTs增加了带隙,折射率,PVDF薄膜的非线性光学特性。这些改进表明这些纳米复合膜在光电应用如太阳能电池中的潜力，图像传感器,和有机发光二极管。
