Materials
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2019
·Vol. 12
·期 2
·273
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IF 2.972
Xianqiang Sun,Jianxin He,Rong Qiang,Nan Nan,Xiaolu You,Yuman Zhou,Weili Shao,Fan Liu,Rangtong Liu
One-dimensional, flexible yarn-shaped supercapacitors for woven cloth have the potential for use in different kinds of wearable devices. Nevertheless, the challenge that supercapacitors face is low energy density. In this paper, we present a low-cost and large-scale manufacturing method to construct a supercapacitor yarn with high power and high energy density. To construct the novel and flexible poly(3,4-ethylenedioxythiophene): poly(styrenesulfonate)–polyacrylonitrile (PDEOT: PSS-PAN)/Ni cotton (PNF/NiC) capacitor yarn, an electrospinning technique was initially used to wrap the polyacrylonitrile (PAN) nanofibers around the core Ni-coated yarn. The PEDOT: PSS–PAN nanofiber composite electrode was created using in situ deposition and H3PO4/PVA was used as a gel electrolyte. This electrode material has a yarn/nanofiber/PEDOT: PSS nanoparticle hierarchical structure, providing a high specific area and enhanced pseudocapacitance. The electrode demonstrated a high volumetric capacitance of 26.88 F·cm−3(at 0.08 A·cm−3), an energy density of 9.56 mWh·cm−3, and a power density of 830 mW·cm−3. In addition, the PNF/NiC capacitor yarns are lightweight, highly flexible, resistant to bending fatigue, can be connected in series or parallel, and may be suitable for a variety of wearable electronic products.Keywords:electrospinning;solid electrolyte;supercapacitor;PEDOT: PSS
研究领域:
材料科学
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能源技术
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DOI
PubMed
高影响因子
Nanomaterials
·
2021
·Vol. 11
·期 8
·2067
·
IF 5.076
Ying Tian,Tao Wang,Qingxia Zhu,Xingcai Zhang,Anita Sagadevan Ethiraj,Wen-Ming Geng,Hong-Zhang Geng
Improved OLED systems have great potential for next-generation display applications. Carbon nanotubes (CNTs) and the conductive polymers poly (3,4-ethylenedioxythiophene): poly (styrene sulfonate) (PEDOT: PSS) have attracted great interest for advanced applications, such as optoelectronic products. In this paper, the simultaneous enhancement of the conductivity, roughness, and adhesion properties of transparent conductive films with PEDOT: PSS/CNTs is reported. These films prepared by a simple spin-coating process were successfully used to produce high-performance organic light-emitting diodes (OLEDs) with an improved lifetime. Addition of PEDOT: PSS lowered the film sheet resistance and CNTs helped to enhance the stability and maintain the lifetime of the OLEDs. In addition, treatment with methanol and nitric acid changed the morphology of the polymer film, which led to greatly reduced sheet resistance, enhanced substrate adhesion, and reduced film roughness. The best performance of the film (PEDOT: PSS: CNT = 110: 1, W/W) was 100.34 Ω/sq.@ 90.1 T%. High transmittance, low sheet resistance, excellent adhesion, and low roughness (3.11 nm) were achieved synchronously. The fabricated OLED demonstrated a low minimum operating voltage (3 V) and could endure high voltage (20 V), at which its luminance reached 2973 cd/m2. Thus, the incorporation of CNTs within PEDOT: PSS electrodes has great potential for the improvement of the performance of OLED devices.Keywords:carbon nanotubes;PEDOT: PSS;spin coating;OLEDs;lifetime
研究领域:
材料科学
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光电技术
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显示技术
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DOI
PubMed
高影响因子
MEASUREMENT SCIENCE and TECHNOLOGY
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2013
·Vol. 24
·期 12
·125105
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IF 1.435
Hui Xu,You Wang,Zhiyuan Luo,Yiwen Pan
An all-solid-state miniature calcium ion selective electrode (ISE) based on poly(3,4-ethylenedioxythiophene) doped with poly(styrene sulfonate) (PEDOT(PSS)) for continuous in situ measurement in seawater was studied. The electrode substrate was a platinum (Pt) wire of 0.5 mm diameter and PEDOT(PSS) was electropolymerized on one end of the Pt wire to act as the solid contact of this calcium ISE. The PEDOT(PSS) layer was covered with a calcium-selective poly(vinyl chloride) membrane, which contained ETH129 as calcium ionophore, potassium tetrakis-(p-chlorophenyl)borate as lipophilic anion and bis(2-ethylhexyl) sebacate as the plasticizer. Experiments using electrochemical impedance spectroscopy and reversed chronopotentiometry illustrated that electropolymerized PEDOT(PSS) decreased the resistance and improved the stability of the electrode. The sensors can work stably in the calcium ion concentration range of 10−6–10−1 mol L−1 with the slope of 27.7 mV/decade. Also Na+, K+ and Mg2+ can hardly interfere with the performance of the electrode. This electrode was applied to measure the calcium ion concentration of seawater samples. The experimental data showed that the electrode can resist the corrosion of seawater and its reproducibility was good (SD < 0.1 mM kg−1). The lifetime of such an electrode was at least six months. Because of the wire-shape and the small size of such a liquid junction free calcium electrode, it is pressure-resistant and easy to package and seal, therefore it is suitable for use in underwater equipment for in situ seawater measurement.
研究领域:
分析化学
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海洋科学
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DOI
高影响因子
CHINESE JOURNAL OF POLYMER SCIENCE
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2017
·Vol. 35
·期 10
·1222-1230
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IF 1.692
Wu Qian,Xu Bing,Wei Jun-jie,Wang Qing,Wang Qi-gang,Liu Wen-guang
Over the past decades, the urgent need for high strength conductive hydrogels in diverse applications has motivated an unremitting effort to combine the improved mechanical properties of hydrogels with conductive performances. In this work, high strength conductive hydrogels intensified with intermolecular hydrogen bonding are fabricated by in situ mixing poly(2-vinyl-4,6-diamino-1,3,5-triazine- co -polyethylene glycol diacrylates) (PVDT-PEGDA) hydrogels with poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate) (PEDOT/PSS). The conductive hydrogels in deionized water exhibit high mechanical performances with compressive strength and tensile strength in the range of 7.58−9.52 MPa and 0.48−1.20 MPa respectively, which are ascribed to the intermolecular hydrogen bonding interactions of diaminotriazine-diaminotriazine (DAT-DAT) in the network. Meanwhile, adding PEDOT/PSS can significantly increase both the specific conductivities and equilibrium water contents of the hydrogels. These cytocompatible conductive hydrogels may have a great potential to be used as electrical stimuli responsive soft biomaterials.
研究领域:
材料科学
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生物医学工程
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DOI
高影响因子
SYNTHETIC METALS
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2023
·
IF 4.4
Song-Lan Zhang,Cheng Qing,Rui Zhang,Si-Qi Wu,Zi-Heng Xu,Yi-Han Wang,Kai Du,Qin-Jian Yin
Graphene oxide/ carbon nanotubes (GO/CNTs) aerogels were prepared by adjusting the proportion of GO and CNTs, the corresponding reduced graphene oxide/CNTs (rGO/CNTs) aerogels were obtained by thermal reduction. Then, poly (3,4-ethylenedioxythiophene): polystyrene sulfonic acid (PEDOT: PSS) was compounded with rGO/CNTs aerogels at a mass ratio of 1:1 to prepare rGO/CNTs/PEDOT: PSS (GCP) composites. Structural analyses revealed the strong π-π interaction between rGO/CNTs and PEDOT: PSS, which leads to the formation of ordered regions. Porous structures of rGO/CNTs aerogels act as conductive network skeleton to promote carrier transport in GCP composites, and the electrical conductivity of GCP composites improves effectively. The optimal electrical conductivity and Seebeck coefficient of GCP5 were 1788.11 S cm −1 and 15.87 μV K −1 respectively. The maximum power factor and ZT merit of GCP5 achieved to 45.03 μW m −1 K −2 and 2.65 × 10 −2 at room temperature, which was almost 43 and 17 times than that of PEDOT: PSS.
研究领域:
材料科学
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物理化学
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DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
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2022
·
IF 16.744
Boxiao Li,Jun Li,Dongkai Ni,Songsong Tang,Juncheng Fan,Kaiyuan Shi,Zhen Li,Jian Zhou
Compared with the deposition of thin films on a solid substrate, using a liquid substrate provides an atomic level roughness and extra degree of freedom in manipulating the system conditions such as interfacial tension, which can be preferred for the fabrication of high-performance films. Herein, we develop a liquid-substrate-based spontaneous spreading (LSBS) technology that applies miscible liquids of high surface tension as the substrate and spreads the polymer solution under capillary forces for thin-film processing. We demonstrate the LSBS technology using a conductive polymer, poly (3,4-ethylenedioxythiophene)/poly (styrenesulfonate) (PEDOT/PSS), and the spread thin films were then transferred to various untreated substrates. LSBS technology uses a miscible liquid substrate for the first time and mediates the spreading, solvent removal, and ion exchange process between the liquid substrate and PEDOT/PSS, increasing the crystallinity of the PEDOT/PSS, thereby significantly improving its electrical conductivity. The LSBS mechanism is investigated through the time–space relationship between spreading and solvent removal, from which we confirm the operating window. Our LSBS technology exhibits a spontaneous, scalable, and versatile process for forming polymer thin films with thicknesses from nano to micron scales on liquid substrates, providing an easy route to control the geometry and presenting universally applicable to different materials.
研究领域:
材料科学
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化学工程
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DOI
高影响因子
ANALYTICAL LETTERS
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2023
·
IF 2
Wenyan Tao,Mingguo Ye,Ying Liu,Zhenjia Lin,Chenchen Wang,Yujun Huang,Dawei Pan
An electrochemical sensor based upon a poly(3,4-ethylenedioxythiophene):polystyrenesulfonate (PEDOT-PSS) co-polymer film with gold nanoparticles (AuNPs) modified microelectrode is reported for the determination of Fe(III). Scanning electron microscopy images showed that the AuNPs were immobilized on gold (Au) microelectrode by formation of a nanofilm with PEDOT-PSS. The individual particles and their cluster-like aggregates provide a larger active electrochemical area and higher conductivity, which facilitates the determination of Fe(III). Electrochemical impedance spectroscopy (EIS) shows the AuNPs/PEDOT-PSS/Au microelectrode possesses high conductivity. A low detection limit of 0.01 µM Fe(III) was obtained using the modified microelectrode by differential pulse voltammetry (DPV) due to its large specific surface area, high conductivity, and the presence of more active sites. The optimized pH of the supporting acetate buffer was 2.0. The AuNPs/PEDOT-PSS/Au provided a linear range from 0.0119 μM to 7.14 μM. The modified electrode was successfully employed for the the determination of total dissolved iron in river water from Three Gorges with satisfactory results.
研究领域:
分析化学
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环境科学
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材料科学
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DOI
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2026
·
IF 5.4
Dongyu Si,Haoxin Shao,Shuo Zhang,Yongkun Hao,Zhiyan Yan
A multi-cross-linked conductive hydrogel (ANHP) with HEC/PEDOT:PSS enhancement is designed for underwater motion sensing. • The ANHP hydrogel exhibits ultra-low equilibrium swelling ratio, outstanding tensile properties and high toughness. • The ANHP hydrogel sensor has high sensitivity, wide strain response range, fast response time and excellent cyclic stability. • The ANHP hydrogel detects multi-joint motions in air and underwater, and provides emergency signal sending via Morse code. Flexible conductive hydrogels, as core candidate materials for next-generation wearable sensors and underwater detection devices, show great potential for applications in Marine engineering, biomedical monitoring, and other fields. However, traditional conductive hydrogels tend to excessive swelling in the water environment due to abundant hydrophilic groups in their network structure, resulting in mechanical degradation and distortion of sensing signals, which seriously restricts their practical application in underwater scenarios. In this study, acrylamide (AM) and N-hydroxymethylacrylamide (NMA) were used as copolymerization monomers, hydroxyethyl cellulose (HEC) as the core biobased skeleton and multifunctional regulatory medium, and PEDOT:PSS as the high-conductivity functional filler to successfully construct a hydrogel (ANHP) with a multiple cross-linked structure. The test results show that the prepared hydrogel exhibits an extremely low equilibrium swelling ratio (3%), excellent tensile properties (0.614 MPa, 1343.81%), high sensitivity (GF = 3.35), a wide strain response range (0–400%), a fast response time (0.25 s), and outstanding cyclic stability over 500 cycles. The hydrogel-based sensor can stably detect human motions underwater and realize underwater Morse code communication. This study provides an innovative strategy for the development of high-performance underwater flexible sensors and an important reference for the high-performance and multifunctional application of carbohydrate-based functional materials. Download: Download high-res image (205KB) Download: Download full-size image Synthetic route and structural diagram of ANHP hydrogel.
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DOI
高影响因子
Surfaces and Interfaces
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2024
·
IF 5.7
Ye Zhang,Cunbin Zhu,Yongli Chen,Lu Wang,Xilong Huang,Linghong Zeng,Wenyan Lv
In this work, Ti 3 C 2 –Cl is introduced into poly(3,4-ethylenedioxythiophene): poly(4-styrenesulfonic acid) / single-walled carbon nanotubes (PEDOT: PSS/SWCNT, noted as PPSC) films to prepare ternary thermoelectric films of PEDOT: PSS/SWCNT/Ti 3 C 2 –Cl (PPSCT). The microscopic morphology, structures, and thermoelectric properties of PPSC and PPSCT films show that the introduction of Ti 3 C 2 –Cl results in a tendency of decreasing electrical as well as thermal conductivity , and the Seebeck coefficient is increased. When the content of Ti 3 C 2 –Cl reaches 8 wt%, the conductivity, Seebeck coefficient, and thermal conductivity of the PPSCT films reach the optimum values of 1683 S/cm, 21.69 μV/K, and 14.97 W/mK, respectively, and the power factor (PF) and thermoelectric figure of merit (ZT) are 79.23 μW/mK 2 and 1.58 × 10 –3 . The UPS and Hall effect results reveal that the improvement of the Seebeck effect of PPSCT mainly results from the ternary interfacial energy barrier as well as the change of carrier concentration. In addition, the wearable electronics devices demonstrate an output voltage of 4.5 mV and an output power of 54.36 nW under a 50 K temperature difference. The device displays a good monitoring sensitivity by reaching an output voltage of 0.6 mV at a 7 K temperature difference between the skin and the environment.
研究领域:
材料科学
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电子工程
·
可穿戴设备
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DOI
高影响因子
SOLAR ENERGY
·
2018
·
IF 4.374
Abdelaal S.A. Ahmed,Wanchun Xiang,Xiaowei Hu,Chen Qi,Ibrahim Saana Amiinu,Xiujian Zhao
Si 3 N 4 /MoS 2 nanocomposite has been fabricated through a solvothermal process and Mixed with polystyrenesulfonate-doped poly (3, 4-ethylenedioxythiophene) to prepare (Si 3 N 4 /MoS 2 -PEDOT: PSS) as a counter electrode (CE) for bifacial dye-sensitized solar cells (DSSCs). The electrochemical studies confirm that Si 3 N 4 /MoS 2 -PEDOT: PSS CEs exhibits higher catalytic activity compared with pristine Si 3 N 4 /MoS 2 and PEDOT: PSS. The DSSCs with 5% Si 3 N 4 /MoS 2 -PEDOT: PSS composite CE achieves conversion efficiency (PCE) of 7.16%, which is comparable to that of the conventional platinum CE (7.50%) and better than those of the pristine Si 3 N 4 /MoS 2 (3.80%) or PEDOT: PSS (4.20%) CEs. Owing to the optical transparency of Si 3 N 4 /MoS 2 -PEDOT: PSS composite CEs, bifacial DSSCs based on 5% Si 3 N 4 /MoS 2 -PEDOT: PSS CE yield 2.03% PCE from rear irradiation. The simple preparation method, high catalytic activity and electrochemical stability demonstrate that Si 3 N 4 /MoS 2 -PEDOT: PSS can be used a transparent CE in bifacial DSSCs.
研究领域:
材料科学
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能源科学
·
纳米技术
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DOI
高影响因子
TALANTA
·
2025
·
IF 6.1
Zerun Sun,Jie Zhao,Han Peng,Mingjia Zou,Guofeng Cui
A major obstacle in the development of solid contact ion-selective electrodes (SC-ISEs) is the frequent calibration procedures due to the low reproducibility of standard potential(E 0 ) and the unstable signals. To address these challenges, we developed an all-solid state miniature sodium ion-selective electrode (Na + -ISE) based on acid-doped poly(3,4-ethylenedioxythiophene)-polystyrene sulphonate (PEDOT: PSS) as the solid contact layer, in combination with an external polarization technique. Acid doping minimized the Coulomb interaction between PEDOT and PSS, inducing significant phase separation and conformational re-aggregation of PEDOT chains, thus creating more contact points to facilitate charge transport and ion-to-electron transduction. The sensor exhibited excellent potentiometric performance with a detection limit of 5.90378 μM and potential drift of 10.99 μV/h. More importantly, external polarization significantly improved E 0 reproducibility across different electrodes (standard deviation reduced from 57.41 mV to 1.95 mV) and reduced batch-to-batch E 0 variability. The performance of the potentiometric sensor system was evaluated in inactivated fetal bovine serum, and the measurement results were highly comparable to those of the reference methods with deviation of less than 4 %. The electrochemical sensing system developed in this study provides a novel strategy for highly stable sodium ion sensing, indicating promising potential for calibration-free measurement in medical application.
研究领域:
电化学
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传感器与生物传感器
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材料科学
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分析化学
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生物医学工程
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产品关联
DOI
PubMed
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2026
·
IF 5.4
Yiwei Dong,Bing Ren,Yubing Yang,Yongchang Mu,Yunlan Liu,Chenxu Wang,Jie Li,Jing Han
A eutectic solvent replacement strategy is proposed to synergistically regulate the polymer network and the conductive phase of PEDOT: PSS-based gels. • The optimized eutectogel achieves exceptional fracture strength, toughness and a high gauge factor. • The electrical enhancement involves conformational transition of PEDOT and improved conductivity from metal ion. • The sensor based on PEDOT: PSS eutectogel successfully enables monitoring during post operative cervical spine rehabilitation. Flexible electronics have sparked significant interest for their potential applications in diverse fields. Among these, poly(3,4-ethylenedioxythiophene): polystyrene sulfonate (PEDOT: PSS)-based hydrogels have emerged as star materials in flexible electronics, yet their sensing capabilities remain constrained by compromised mechanoelectrical coordination. Herein, we present an approach through a eutectic solvent exchange strategy that synergistically regulates mechanical and electrical performance. Specifically, molecular engineering via eutectic solvent-enhanced hydrogen bonding strengthens interchain interactions to improve toughness, while electrical engineering involves (i) conformational transition of PEDOT from coiled benzoid to linear quinoid structure and (ii) the ionic conductivity contributed by Fe 3 + further enhances the conductivity. The optimized eutectogel (MSPFe60) achieves fracture strength (0.98 MPa), toughness (9.97 MJ·m −3 ), and gauge factor (GF= 21.2). We further demonstrate MSPFe60’s potential in postoperative cervical spine rehabilitation monitoring through real-time motion signal capture. Download: Download high-res image (283KB) Download: Download full-size image
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DOI
高影响因子
危险品化学品经营许可证（带存储）