掺杂 CaTiO3 和 LiNbO3 的 PVDF 薄膜的光带隙工程和导电性比较

Q3 Physics and Astronomy

Results in Optics Pub Date : 2024-06-22 DOI:10.1016/j.rio.2024.100720

Clyde Varner , Angela Davis , Ashok K. Batra, Padmaja Guggilla

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引用次数: 0

摘要

本研究探讨了 CaTiO3 和 LiNbO3 晶体对聚偏二氟乙烯（PVDF）薄膜的光学和介电性质的影响。我们的研究采用紫外-可见光谱法来表征 PVDF 基体中与 n-π* C-F 相关的电子转变。我们发现 CaTiO3 晶体大大降低了复合材料的带隙和介电性能，增强了其电子和光学属性。相反，LiNbO3 晶体则增加了带隙能。这些变化与观察到的直流电导变化一致，为光电、传感和储能应用提供了新的功能。

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Optical band gap engineering and comparison of conductivity of CaTiO3 and LiNbO3 doped PVDF films

This study explores the impact of CaTiO₃ and LiNbO₃ crystals on the optical and dielectric properties of polyvinylidene fluoride (PVDF) films. Our investigation employs UV–Visible Spectroscopy to characterize the n-π* C-F related electronic transition within the PVDF matrix. We find that CaTiO₃ crystals significantly decrease the composite’s band gap and dielectric properties, enhancing its electronic and optical attributes. Conversely, LiNbO₃ crystals increase the band gap energy. These variations align with observed DC conductivity changes, suggesting novel functionalities for optoelectronic, sensing, and energy storage applications.

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来源期刊

Results in Optics Physics and Astronomy-Atomic and Molecular Physics, and Optics

CiteScore

2.50

自引率

0.00%

发文量

115

审稿时长

71 days