A transparent PEDOT:PSS/PVA-co-PE/epoxy thermoelectric composite device with excellent flexibility and environmental stability

Zeng, Fanjia; Zhao, Xiaojian; Luo, Mengying; Wang, Wen; Qing, Xing; Lü, Ying; Zhong, Weibing; Liu, Qiongzhen; Luo, Jie; Li, Mufang; Wang, Dong

doi:10.1016/j.compscitech.2021.109153

Cited by 22 publications

(11 citation statements)

References 43 publications

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“…Also, realizing that the hydroxyl group of alcohol promoted both aggregation and retention of the yellow color, we confirmed that polyvinyl alcohol (PVA) with excess hydroxyl groups produced a response similar to alcohol. PVA is a useful polymer owing to its water solubility, low environmental impact, and safety in terms of human health, so there have been various reports on the use of PVA in electronics 35 – 39 and medical research 40 , 41 . Thus, in the present work, we employed PVA as a dispersant, thickener, and binder for inkjet printing.…”

Section: Resultsmentioning

confidence: 99%

Inkjet printing of mechanochromic fluorenylidene-acridane

Ogumi

Nagata

Takimoto

et al. 2022

Sci Rep

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In mechanochromic material research, a serious problem is that mechanical treatment cannot be applied to the materials because of their responsiveness to stimuli. Inkjet printing is a useful solution deposition method for electronics, but materials must be processed to be suitable for an inkjet printer. Fluorenylidene-acridane (FA) exhibits ground-state mechanochromism with visual color changes and responds not only to mechanical pressure but also to alcohol. Alcohol inhibits the color change induced by mechanical stimulation because the mechanochromism of FA is based on a conformational change in its molecular structure. This phenomenon suggests that the mechanochromism of FA can be controlled using alcohol. For use in inkjet printing, minute particles of FA obtained by bead milling in ethanol were investigated for uniformity and size by scanning electron microscopy and gas adsorption measurement. Also, ink containing FA particles was prepared and examined for physical properties such as viscosity and surface tension. It was confirmed that the inkjet-printed pattern demonstrated visual color changes between yellow and green in response to mechanical pressure and alcohol. This report describing the control of mechanochromism and its specific application is expected to contribute to broadening the mechanochromic materials research field.

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Section: Resultsmentioning

confidence: 99%

Inkjet printing of mechanochromic fluorenylidene-acridane

Ogumi

Nagata

Takimoto

et al. 2022

Sci Rep

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“…All phases of blend exhibit good interfacial adhesion without any voids or defects. 48 3.1.5 | Shore "A" durometer test of PVB/ PEDOT:PSS blends Shore "A" durometer testing was preferred for mechanical testing of rubber and soft polymers and foam systems.…”

Section: Sem Analysis Of Pvb/pedot:pss Blendsmentioning

confidence: 99%

Development of soft polymer blend for copper ion detection by electrochemical route

Mane

Joshi

Shirsat

et al. 2023

J of Applied Polymer Sci

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In the present work, we have prepared polymer blend of polyvinyl butyral (PVB) and poly (3,4-ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT: PSS) by solution casting route. Blends were tested for various structural, morphological, and electrochemical techniques. Structural properties were investigated by XRD technique exploring the contribution conducting polymer in host system PVB exhibit amorphous nature. COO functional group contributed in blend configuration was confirmed by FTIR technique. Clustering of PEDOT:PSS in blend system were observed by scanning electron microscopy.Subatomic surface topology and increased roughness due to blending concentration of conducting polymer were analyzed by probe microscopy techniques.Increased softness of blends was confirmed by shore "A" durometer test. PVB/PEDOT:PSS blend was drop casted on glassy carbon electrode and employed for detection of various metal ions. It was deployed for electrochemical sensing of Cu 2+ ion. Electrochemical sensing investigation was done by differential pulse voltammetry technique. Performance of blends at 4.5 pH, 200 s deposition time and À1.2 V deposition potential was more accurate and sensitive toward detection of Cu 2+ ion. The developed electrochemical sensor exhibited rapid sensing response in the range of 1.6 to 8.3 μM. Furthermor,e an influence of many analytical parameters such as pH, deposition time and deposition potential on Cu 2+ ion investigation were disclosed. This investigation may be feasible to construct a very simple, fast, and efficient electrochemical sensing system for toxic heavy metals at low-level concentration.

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“…As such, the last decade has witnessed a major shift toward piezoresistive nanocomposites based on stretchable polymers. Fabrication of these nanocomposites requires blending such stretchable polymers with mostly carbon-based fillers like nanotubes, carbon black (CB), conductive polymers, and graphene − to improve their conductivity. For piezoresistive nanocomposites targeting the market for wearable electronics, elastomer-based stretchable nanocomposite fibers have been particularly pursued. − These fibers offer extreme flexibility and allow for easy integration into clothing using traditional textile processes like weaving, sewing, and knitting. ,, Despite their large deformability (>500% strain) and high sensitivities, piezoresistive nanocomposite fibers show very small working factors ( W ≤ 5%). , This is due to the small yield strains (ε c ) for polymer hosts, which closely correlate with W for most piezoresistive nanocomposite materials. , Thus, the performances of these materials are reliably restricted to the elastic regime .…”

Section: Introductionmentioning

confidence: 99%

Piezoresistive Fibers with Large Working Factors for Strain Sensing Applications

Innocent

Zhang

Cao

et al. 2022

ACS Appl. Mater. Interfaces

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Piezoresistive fibers with large working factors remain of great interest for strain sensing applications involving large strains, yet difficult to achieve. Here, we produced strain-sensitive fibers with large working factors by dip-coating nanocomposite piezoresistive inks on surface-modified polyether block amide (PEBA) fibers. Surface modification of neat PEBA fibers was carried out with polydopamine (PDA) while nanocomposite conductive inks consisted of styrene−ethylene− butylene−styrene (SEBS) elastomer and carbon black (CB). As such, the deposition of piezoresistive coatings was enabled through nonconventional hydrogen-bonding interactions. The resultant fibers demonstrated well-defined piezoresistive linear relationships, which increased with CB filler loading in SEBS. In addition, gauge factors decreased with increasing CB mass fractions from ∼15 to ∼7. Furthermore, we used the fatigue theory to predict the endurance limit (C e ) of our fibers toward resistance signal stability. Such a piezoresistive performance allowed us to explore the application of our fibers as strain sensors for monitoring the movement of finger joints.

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A transparent PEDOT:PSS/PVA-co-PE/epoxy thermoelectric composite device with excellent flexibility and environmental stability

Cited by 22 publications

References 43 publications

Inkjet printing of mechanochromic fluorenylidene-acridane

Inkjet printing of mechanochromic fluorenylidene-acridane

Development of soft polymer blend for copper ion detection by electrochemical route

Piezoresistive Fibers with Large Working Factors for Strain Sensing Applications

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