Optical, optoelectronic, structural, and chemical characterizations of (PEO-PVA)/MWCNT nanocomposite films

被引：18

作者：

Ahmad, Ahmad A. ^{[1
]}

Al-Bataineh, Qais M. ^{[1
,2
]}

Bani-Salameh, Areen A. ^{[1
]}

Telfah, Ahmad D. ^{[2
,3
]}

机构：

[1] Jordan Univ Sci & Technol, Dept Phys, POB 3030, Irbid 22110, Jordan

[2] Leibniz Inst Analyt Wissensch ISAS eV, Bunsen Kirchhoff Str 11, D-44139 Dortmund, Germany

[3] Jordan Univ, Hamdi Mango Ctr Sci Res HMCSR, Amman 11942, Jordan

来源：

SURFACES AND INTERFACES | 2022年 / 33卷

关键词：

Polyethylene oxide (PEO); Polyvinyl alcohol (PVA); Multi -walled carbon nanotubes (MWCNTs); Optical properties; Bandgap energy; FTIR; MAGNETIC-PERMEABILITY; ELECTRICAL-PROPERTIES; DIELECTRIC-CONSTANT; METAL GLASSES; PARAMETERS; ENHANCEMENT; GAP; TEMPERATURE; COLORS; MEDIA;

D O I：

10.1016/j.surfin.2022.102202

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Nanocomposite films were fabricated from polyethylene oxide (PEO) and polyvinyl alcohol (PVA) incorporated with variant contents of multi-walled carbon nanotubes (MWCNTs) deposited on the glass substrates. FTIR and XRD techniques determined the chemical and structural characteristics of (PEO-PVA)/MWCNTs nanocomposite films. The optical properties, including refractive index, extinction coefficient, and dielectric functions, were comprehended via UV-Vis spectroscopy's transmittance and reflectance spectra. Classical and quantum models, including Al-Bataineh, Urbach, Spitzer-Fan, and Drude models, are employed to determine optical and opto-electronic characteristics. The optical bandgap energy of the PEO-PVA film was found to be 4.032 eV. Intro-ducing MWCNTs to PEO-PVA films leads to a decrease in bandgap energy. The effective medium models (EMMs) described the diluted MWCNTs in the host PEO-PVA matrix. Our samples obey the Maxwell-Garnett model indicating a considerable distance between the MWCNTs in the polymer matrix with predicted possible in-teractions between the nanotubes and the host polymer chain. In addition, electrical conductivity increased as increasing MWCNT in PEO-PVA films.

引用

页数：9

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