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Modifying Structural, Optical, and Electrical Features of PVA/CMC/PVP Blend Doped with ZnWO4 and TPAI
Journal of Inorganic and Organometallic Polymers and Materials ( IF 4 ) Pub Date : 2024-04-15 , DOI: 10.1007/s10904-024-03099-z
A. M. El-naggar , Zein K. Heiba , Mohamed Bakr Mohamed , A. M. Kamal

Zinc tungstate (ZnWO4) and tetrapropylammonium iodide (TPAI) are attracted materials that can be applied in different fields such as dye-sensitized solar cells or ultra-high capacitance supercapacitors. Newly blended polymers reinforced using ZnWO4 nanoparticles and TPAI were fabricated and explored. Poly (vinyl alcohol)/carboxymethyl cellulose/ poly(vinyl pyrrolidone)/ ZnWO4/x wt % TPAI (PVA/CMC/PVP/ZnWO4/x wt % TPAI) blended polymers were formed using hydrothermal and solution-casting procedures. X-ray diffraction, transmission electron microscopy, diffused reflectance and fluorescence techniques were used to characterizations the formed blends. The direct and indirect optical band energy values diminished to their minimum values (4.84, 3.97) eV and (4.21, 3.23, 2.96) eV as the blend doped with ZnWO4 and 0.05 wt% TPAI, respectively. Blend doped with ZnWO4 and 0.1 wt % TPAI achieved the highest refractive index and optical dielectric constant values. The fluorescence intensities of doped PVA/CMC/PVP blends affected by the kind of dopant and the measuring wavelength range. The addition of ZnWO4 and/or TPAI samples to the blend enhances their nonlinear optical parameters. According to CIE chromaticity coordinates (x, y) and based on the amount of TPAI doping, doped blends revealed the changeable degrees of blue color. The values of dielectric constant are enhanced slightly as the PVA/CMC/PVP blend loaded with the ZnWO4 sample and enhanced further as the amount of TPAI doping increased. The σac value of the PVA/CMC/PVP blend was improved as the ZnWO4 sample was added and enhanced further as the content of TPAI doping increased. Loading the PVA/CMC/PVP blend with ZnWO4 sample reduced its energy density, and raising the TPAI doping amount further reduced it. The formed materials are promising for various applications, such as optoelectronics and energy storage.



中文翻译:

改性掺杂 ZnWO4 和 TPAI 的 PVA/CMC/PVP 共混物的结构、光学和电学特性

钨酸锌(ZnWO 4)和四丙基碘化铵(TPAI)是备受关注的材料,可应用于染料敏化太阳能电池或超高电容超级电容器等不同领域。制造并探索了使用 ZnWO 4纳米粒子和 TPAI增强的新共混聚合物。使用水热和溶液流延程序形成聚(乙烯醇)/羧甲基纤维素/聚(乙烯基吡咯烷酮)/ZnWO 4 /x重量%TPAI(PVA/CMC/PVP/ZnWO 4 / x重量%TPAI)共混聚合物。使用 X 射线衍射、透射电子显微镜、漫反射和荧光技术来表征所形成的共混物。当共混物掺杂有ZnWO 4和0.05 wt% TPAI时,直接和间接光带能量值分别减小至最小值(4.84,3.97) eV和(4.21,3.23,2.96) eV 。掺杂ZnWO 4和0.1 wt% TPAI 的共混物实现了最高的折射率和光学介电常数值。掺杂PVA/CMC/PVP共混物的荧光强度受掺杂剂种类和测量波长范围的影响。在混合物中添加 ZnWO 4和/或 TPAI 样品可增强其非线性光学参数。根据CIE色度坐标(xy)和TPAI掺杂量,掺杂混合物显示出蓝色的变化程度。随着PVA/CMC/PVP共混物负载ZnWO 4样品,介电常数值略有提高,并随着TPAI掺杂量的增加而进一步提高。PVA/CMC/PVP共混物的σ ac值随着ZnWO 4样品的添加而提高,并随着TPAI掺杂含量的增加而进一步提高。在PVA/CMC/PVP共混物中负载ZnWO 4样品降低了其能量密度,并且提高TPAI掺杂量进一步降低了能量密度。所形成的材料在光电和能源存储等多种应用中具有广阔的前景。

更新日期:2024-04-15
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