Modulating of the optical and dielectric features of PVC/ZnMoO4 + gC3N4/MWCNTs nanocomposites for flexible optoelectronic and energy storage devices uses

IF 5.1 3区材料科学 Q2 MATERIALS SCIENCE, COATINGS & FILMS

Diamond and Related Materials Pub Date : 2025-08-22 DOI:10.1016/j.diamond.2025.112768

A.M. El-naggar , A.M. Kamal , A.A. Albassam

{"title":"Modulating of the optical and dielectric features of PVC/ZnMoO4 + gC3N4/MWCNTs nanocomposites for flexible optoelectronic and energy storage devices uses","authors":"A.M. El-naggar , A.M. Kamal , A.A. Albassam","doi":"10.1016/j.diamond.2025.112768","DOIUrl":null,"url":null,"abstract":"<div><div>Polymer-based nanocomposites exhibit significant potential as optimal materials for application in flexible, advanced optoelectronic and energy storage systems. This work examines the integration of zinc molybdate/graphitic carbon nitrides (ZnMoO4/g-C3N4) and/or multi-walled carbon nanotubes (MWCNTs) into a poly(vinyl chloride) (PVC) matrix to thoroughly analyze its optical and dielectric characteristics. The structure and morphology of the polymers were investigated. The absorbance spectrum of the PVC sample displayed a minor rise when doped with ZnMoO4 + g-C3N4, but a significant enhancement with the addition of MWCNTs to the matrix. The optical transmittance decreased with the incorporation of ZnMoO4 + g-C3N4/x wt% MWCNTs, reaching a minimum value of 5–11 % when the MWCNTs content is 0.25 wt%. The lowest optical energy gap values of 4.11 and 3.62 eV for direct and indirect transitions were achieved when the ratios of MWCNTs accomplished 0.25 wt% in the filled polymer. The value of the refractive index for PVC rose with the incorporation of ZnMoO4 + g-C3N4/x wt% MWCNTs in the visible spectrum. The influence of the fillers on the linear and nonlinear optical parameters was examined. The fluorescence intensity of PVC polymer under excitation wavelengths is significantly rose with the incorporation of ZnMoO4 + g-C3N4; however, it exhibits an inconsistent decrease when varying amounts of MWCNTs filler are added. Depending on the kind of filler and the percentage of MWCNTs in the polymer, all samples exhibited varied intensities of blue-violet colors under excitation wavelengths (λexc) = 320 and 380 nm, whereas they displayed blue-yellow coloration under λexc = 435 nm. The PVC/ZnMoO4 + g-C3N4 composite with 0.15 wt% MWCNTs displays the ultimate dielectric constant values. A rise in energy density was observed subsequent to the incorporation of ZnMoO4 + g-C3N4 and/or 0.1 wt% MWCNTs into the host polymer.</div></div>","PeriodicalId":11266,"journal":{"name":"Diamond and Related Materials","volume":"159 ","pages":"Article 112768"},"PeriodicalIF":5.1000,"publicationDate":"2025-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Diamond and Related Materials","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0925963525008258","RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"MATERIALS SCIENCE, COATINGS & FILMS","Score":null,"Total":0}

引用次数: 0

Abstract

Polymer-based nanocomposites exhibit significant potential as optimal materials for application in flexible, advanced optoelectronic and energy storage systems. This work examines the integration of zinc molybdate/graphitic carbon nitrides (ZnMoO₄/g-C₃N₄) and/or multi-walled carbon nanotubes (MWCNTs) into a poly(vinyl chloride) (PVC) matrix to thoroughly analyze its optical and dielectric characteristics. The structure and morphology of the polymers were investigated. The absorbance spectrum of the PVC sample displayed a minor rise when doped with ZnMoO₄ + g-C₃N₄, but a significant enhancement with the addition of MWCNTs to the matrix. The optical transmittance decreased with the incorporation of ZnMoO₄ + g-C₃N₄/x wt% MWCNTs, reaching a minimum value of 5–11 % when the MWCNTs content is 0.25 wt%. The lowest optical energy gap values of 4.11 and 3.62 eV for direct and indirect transitions were achieved when the ratios of MWCNTs accomplished 0.25 wt% in the filled polymer. The value of the refractive index for PVC rose with the incorporation of ZnMoO₄ + g-C₃N₄/x wt% MWCNTs in the visible spectrum. The influence of the fillers on the linear and nonlinear optical parameters was examined. The fluorescence intensity of PVC polymer under excitation wavelengths is significantly rose with the incorporation of ZnMoO₄ + g-C₃N₄; however, it exhibits an inconsistent decrease when varying amounts of MWCNTs filler are added. Depending on the kind of filler and the percentage of MWCNTs in the polymer, all samples exhibited varied intensities of blue-violet colors under excitation wavelengths (λ_exc) = 320 and 380 nm, whereas they displayed blue-yellow coloration under λ_exc = 435 nm. The PVC/ZnMoO₄ + g-C₃N₄ composite with 0.15 wt% MWCNTs displays the ultimate dielectric constant values. A rise in energy density was observed subsequent to the incorporation of ZnMoO₄ + g-C₃N₄ and/or 0.1 wt% MWCNTs into the host polymer.

Abstract Image

查看原文本刊更多论文

用于柔性光电和储能器件的PVC/ZnMoO4 + gC3N4/MWCNTs纳米复合材料的光学和介电特性调制

聚合物基纳米复合材料在柔性、先进光电和储能系统中表现出巨大的应用潜力。本研究研究了钼酸锌/石墨氮化碳（ZnMoO4/g-C3N4）和/或多壁碳纳米管（MWCNTs）集成到聚氯乙烯（PVC）基体中，以彻底分析其光学和介电特性。研究了聚合物的结构和形貌。当掺杂ZnMoO4 + g-C3N4时，聚氯乙烯样品的吸光度光谱略有上升，但在基体中加入MWCNTs后，吸光度光谱明显增强。随着ZnMoO4 + g-C3N4/x wt% MWCNTs的掺入，透光率下降，当MWCNTs含量为0.25 wt%时，透光率达到最小值5 - 11%。当MWCNTs在填充聚合物中的比例达到0.25 wt%时，直接和间接跃迁的光能隙值最低，分别为4.11和3.62 eV。在可见光谱中加入ZnMoO4 + g-C3N4/x wt% MWCNTs后，PVC的折射率升高。研究了填料对线性和非线性光学参数的影响。ZnMoO4 + g-C3N4的加入显著提高了PVC聚合物在激发波长下的荧光强度；然而，当添加不同数量的MWCNTs填料时，其下降幅度并不一致。根据填料的种类和聚合物中MWCNTs的百分比，所有样品在激发波长(λexc) = 320和380 nm下呈现不同强度的蓝紫色，而在λexc = 435 nm下呈现蓝黄色。含有0.15 wt% MWCNTs的PVC/ZnMoO4 + g-C3N4复合材料显示出最终介电常数值。在将ZnMoO4 + g-C3N4和/或0.1 wt%的MWCNTs掺入宿主聚合物后，观察到能量密度上升。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Diamond and Related Materials 工程技术-材料科学：综合

CiteScore

6.00

自引率

14.60%

发文量

702

审稿时长

2.1 months

期刊介绍： DRM is a leading international journal that publishes new fundamental and applied research on all forms of diamond, the integration of diamond with other advanced materials and development of technologies exploiting diamond. The synthesis, characterization and processing of single crystal diamond, polycrystalline films, nanodiamond powders and heterostructures with other advanced materials are encouraged topics for technical and review articles. In addition to diamond, the journal publishes manuscripts on the synthesis, characterization and application of other related materials including diamond-like carbons, carbon nanotubes, graphene, and boron and carbon nitrides. Articles are sought on the chemical functionalization of diamond and related materials as well as their use in electrochemistry, energy storage and conversion, chemical and biological sensing, imaging, thermal management, photonic and quantum applications, electron emission and electronic devices. The International Conference on Diamond and Carbon Materials has evolved into the largest and most well attended forum in the field of diamond, providing a forum to showcase the latest results in the science and technology of diamond and other carbon materials such as carbon nanotubes, graphene, and diamond-like carbon. Run annually in association with Diamond and Related Materials the conference provides junior and established researchers the opportunity to exchange the latest results ranging from fundamental physical and chemical concepts to applied research focusing on the next generation carbon-based devices.