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填充有氧化铜纳米填料的电纺聚偏氟乙烯-三氟乙烯共聚物（P(VDF-TrFE)）和聚3-己基噻吩（P3HT）的结构和介电性能

Structural and dielectric properties of electrospun P(VDF-TrFE) and P3HT filled with copper oxide nanofillers.

作者信息

Salim E, El-Henawey M I

机构信息

ESCs Research Lab, Physics Department, Faculty of Science, Mansoura University, Mansoura, Egypt.

出版信息

Sci Rep. 2025 Mar 4;15(1):7543. doi: 10.1038/s41598-025-90461-x.

DOI:10.1038/s41598-025-90461-x
PMID:40038441
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11880474/
Abstract

Nanofibers based on polyvinylidene fluoride-trifluoroethylene/poly(3-hexylthiophene) (P(VDF-TrFE)/P3HT) containing copper oxide nanoparticles (CuO NPs) were fabricated using the electrospinning technique. Scanning electron microscope (SEM) images revealed smooth, bead-free solid nanofibers of 34-100 nm diameters. X-ray diffraction (XRD) analysis shows the ferroelectric β phase of P(VDF-TrFE) with a wide diffraction pattern. Fourier transform infrared (FTIR) spectrum of the P(VDF-TrFE) fiber film revealed distinct peaks for the polar β phase, aromatic C-H groups, and alkyl groups. Semiconducting P3HT/CuO increases the dielectric constant of P(VDF-TrFE), inducing polarization at the semiconductor-insulator interface. Two types of dielectric response are observed: β-phase rotation and α to β phase transition. The bulk resistance values show a reduction from 224.5 to 23.8 Ω, suggesting more conductive pathways. Furthermore, incorporating P3HT/CuO into P(VDF-TrFE) enhanced its electrical conductivity from 3.75 × 10 to 3.40 × 10 S m. This investigation showed that P3HT/CuO-enhanced P(VDF-TrFE) is a viable option for energy harvesting.

摘要

采用静电纺丝技术制备了基于聚偏氟乙烯 - 三氟乙烯/聚（3 - 己基噻吩）（P（VDF - TrFE）/P3HT）并含有氧化铜纳米颗粒（CuO NPs）的纳米纤维。扫描电子显微镜（SEM）图像显示出直径为34 - 100纳米的光滑、无珠的实心纳米纤维。X射线衍射（XRD）分析表明P（VDF - TrFE）的铁电β相具有宽衍射图案。P（VDF - TrFE）纤维膜的傅里叶变换红外（FTIR）光谱显示出极性β相、芳族C - H基团和烷基的明显峰。半导体P3HT/CuO增加了P（VDF - TrFE）的介电常数，在半导体 - 绝缘体界面处诱导极化。观察到两种类型的介电响应：β相旋转和α到β相转变。体电阻值从224.5Ω降低到23.8Ω，表明有更多的导电路径。此外，将P3HT/CuO掺入P（VDF - TrFE）中使其电导率从3.75×10提升到3.40×10 S m。这项研究表明，P3HT/CuO增强的P（VDF - TrFE）是一种可行的能量收集选择。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6bab/11880474/5da8ef5fe856/41598_2025_90461_Fig9_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6bab/11880474/0484d3e9b063/41598_2025_90461_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6bab/11880474/7064aca8187c/41598_2025_90461_Fig2_HTML.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6bab/11880474/e3df1139e57f/41598_2025_90461_Fig5_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6bab/11880474/959cab62353e/41598_2025_90461_Fig6_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6bab/11880474/54ff0ff1d103/41598_2025_90461_Fig7_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6bab/11880474/17ff8c03fe30/41598_2025_90461_Fig8_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6bab/11880474/5da8ef5fe856/41598_2025_90461_Fig9_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6bab/11880474/0484d3e9b063/41598_2025_90461_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6bab/11880474/7064aca8187c/41598_2025_90461_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6bab/11880474/ec9dfb6765bc/41598_2025_90461_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6bab/11880474/6b0bccc3920e/41598_2025_90461_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6bab/11880474/e3df1139e57f/41598_2025_90461_Fig5_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6bab/11880474/959cab62353e/41598_2025_90461_Fig6_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6bab/11880474/54ff0ff1d103/41598_2025_90461_Fig7_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6bab/11880474/17ff8c03fe30/41598_2025_90461_Fig8_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6bab/11880474/5da8ef5fe856/41598_2025_90461_Fig9_HTML.jpg

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