Enhancement of Thermoelectric Properties of PEDOT:PSS and Tellurium-PEDOT:PSS Hybrid Composites by Simple Chemical Treatment

Abstract The main objective and the originality of this work are to create a hybrid-natural fibre composite by the RMS method. Hybrid composites are manufactured by combining two or more dissimilar kinds of fibre in a single matrix. In the first section, Response Surface Methodology (RSM) using a Box-Behnken experimental design and the Analysis of Variance (ANOVA) are applied to investigate the effects of the type of fibres, chemical treatment, volume fraction and treatment time on the mechanical properties (ultimate tensile strength and Young’s modulus) in the tensile quasi-static loading when used two resins namely, epoxy and polyester. In the studied range, statistical analysis of the results showed that selected variables had a significant effect on the mechanical properties, except the treatment time that has a very weak significance effect on the mechanical properties. Then, to maximize the mechanical properties, the optimal conditions coded by RSM were found: the type of fibres (X 1 ) of [-0.28 and -0.33], the chemical treatment (X 2 ) of -1, the volume fraction of fibre (X 3 ) of 1 and the treatment duration (X 4 ) of [-0.97 and -1] for epoxy resin matrix. Similarly, when used the polyester resin matrix; the type of fibres (X 1 ) of -0.26, the chemical treatment (X 2 ) of -1, the volume fraction (X 3 ) of 0.99 and the sinking time (X 4 ) of [-0.94 and -0.93]. The obtained optimum parameters were confirmed experimentally in the second section

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Effect of hybridization and chemical treatment on the mechanical properties of coir pith/nylon/epoxy hybrid composites

Polymer Composites ◽

10.1002/pc.23221 ◽

2014 ◽

Vol 37 (3) ◽

pp. 649-657 ◽

Cited By ~ 5

Author(s):

R. Narendar ◽

K. Priya Dasan ◽

Jeenet Jayachandran

Keyword(s):

Mechanical Properties ◽

Chemical Treatment ◽

Hybrid Composites ◽

Coir Pith

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Engineering of Conductive Polymer Using Simple Chemical Treatment in Silicon Nanowire-Based Hybrid Solar Cells

Lithium-Ion Batteries and Solar Cells ◽

10.1201/9781003138327-13 ◽

2020 ◽

pp. 233-249

Author(s):

Po-Hsuan Hsiao ◽

Ilham Ramadhan Putra ◽

Chia-Yun Chen

Keyword(s):

Solar Cells ◽

Chemical Treatment ◽

Silicon Nanowire ◽

Conductive Polymer ◽

Hybrid Solar Cells ◽

Simple Chemical

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Fabrication of PEDOT: PSS-PVP Nanofiber-Embedded Sb2Te3 Thermoelectric Films by Multi-Step Coating and Their Improved Thermoelectric Properties

Materials ◽

10.3390/ma13122835 ◽

2020 ◽

Vol 13 (12) ◽

pp. 2835

Author(s):

Sang-il Kim ◽

Kang Yeol Lee ◽

Jae-Hong Lim

Keyword(s):

Thermoelectric Properties ◽

Power Factor ◽

Photoelectron Spectroscopy ◽

Hybrid Composites ◽

Composite Films ◽

X Ray Diffraction ◽

Thermoelectric Efficiency ◽

X Ray ◽

Seebeck Coefficients ◽

Electrical Conductivities

Antimony telluride thin films display intrinsic thermoelectric properties at room temperature, although their Seebeck coefficients and electrical conductivities may be unsatisfactory. To address these issues, we designed composite films containing upper and lower Sb2Te3 layers encasing conductive poly(3,4-ethylenedioxythiophene):poly(4-styrenesulfonate) (PEDOT:PSS)- polyvinylpyrrolidone(PVP) nanowires. Thermoelectric Sb2Te3/PEDOT:PSS-PVP/Sb2Te3(ED) (STPPST) hybrid composite films were prepared by a multi-step coating process involving sputtering, electrospinning, and electrodeposition stages. The STPPST hybrid composites were characterized by field-emission scanning electron microscopy, X-ray diffraction, ultraviolet photoelectron spectroscopy, and infrared spectroscopy. The thermoelectric performance of the prepared STPPST hybrid composites, evaluated in terms of the power factor, electrical conductivity and Seebeck coefficient, demonstrated enhanced thermoelectric efficiency over a reference Sb2Te3 film. The performance of the composite Sb2Te3/PEDOT:PSS-PVP/Sb2Te3 film was greatly enhanced, with σ = 365 S/cm, S = 124 μV/K, and a power factor 563 μW/mK.

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