SYNTHETIC METALS
·
2023
·
IF 4.4
Zhanqi Li,Xiaowen Xie,Meng Zhou,Ling Zhu,Changqing Fu,Shuai Chen
Electrostatic discharge (ESD) protection is quite necessary for the electronic industry and modern life. Antistatic materials based on poly(3,4-ethylenedioxythiophene):polystyrene sulfonate (PEDOT:PSS) have been widely used in these fields such as electronic devices, smart windows, specialty papers, photographic films , glass coatings, fabrics and so on. To solve the critical shortcomings of PEDOT:PSS in high commercial price, high water absorption accompanying dramatically decreased structure stability, mechanical damage vulnerability, and insufficient substrate adhesion ability, etc., herein, we prepared an antistatic PEDOT:PSS/Epoxy films from self-made PEDOT:PSS aqueous dispersion and waterborne epoxy system by facile mechanical mixing and drop-casting on glass substrates. The surface morphology , volume resistivity, surface wettability and water immersion stability of these films were systematically studied. In addition, the substrate adhesion and surface hardness of the films after the introduction of polyhedral oligomeric silsesquioxane (POSS) and silane coupling agent (SCA) in such composite systems were investigated. The optimized PEDOT:PSS/Epoxy/POSS/SCA films exhibited fine antistatic ability, increased hydrophobicity , improved water stability, high hardness (HB) and good adhesion (level 1) on glass substrates. Such conductive films together with their design principle and their environmentally friendly waterborne mother dispersions will promote the further use of PEDOT:PSS in ESD protection materials or others in organic film electronics including vigorously developed flexible and wearable electronic devices.
研究领域:
材料科学
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电子工程
·
表面化学
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产品关联
DOI
高影响因子
Journal of Physical Chemistry Letters
·
2024
·
IF 4.8
Zhe Liu,Jiaqi Li,Shaojie Liu,Yao Yuan,Ainong Chen,Haolin Yu,Shouxiong Wang,Jie Ding,Huajing Fang
The organic–inorganic hybrid heterojunction is introduced for the first time to break through the performance bottleneck of BiVO4-based photodetectors. Through a facile solution process, a p-n heterojunction is established at the BiVO4/PEDOT:PSS interface, and the built-in electric field is designed to separate photogenerated charge carriers. The hybrid heterojunction outputs a significantly increased photocurrent, which is 24 000 times larger than that of the bare BiVO4 thin film. The photodetector shows a satisfactory performance with a responsivity (R) and specific detectivity (D*) of 107.8 mA/W and 4.13 × 1010 Jones at 482 nm illumination. In addition to the fast response speed (100 ms), the device also exhibits an impressive long-term stability with a negligible attenuation in photocurrent after more than 700 cycles. This work provides a novel strategy to suppress carrier recombination of BiVO4, and the coupling of metal oxides and organic semiconductors opens up a new avenue for fabricating high-performance photodetectors.
研究领域:
光电子学
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材料科学
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半导体物理
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纳米技术
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DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2022
·Vol. 140
·期 4
·e53211
·
IF 3.057
Wei Wu,Hailan Zeng,Weiran Zhang,Weili Zhang,Haiyun Jiang,Guohua Wu,Ziyu Li,Xiang Wang,Yiyang Huang,Zhiyong Lei
Poly(3,4-ethylene dioxythiophene) (PEDOT) is a promising electrochromic material in many practical application, such as smart windows and displays. However, there are still difficulties in currently realizing green manufacturing, high coloration efficiency, and rapid response. Herein, in-situ electrochemical polymerization of PEDOT:PSS/Reline films was suggested in aqueous solution. Deep eutectic solvents (DES) composed of choline chloride and urea (Reline) were employed as green solvents in reaction system and used as dopants for the PEDOT:PSS. The as-prepared PEDOT:PSS/Reline films exhibited remarkable electrochromic properties, including great ion diffusion coefficient, fast reaction time (coloration response time was 1.4 s), prominent transmittance modulation (38%), high coloration efficiency (223 cm 2 /C) and excellent cyclic stability. Impressively, doping of Reline cannot only provide a green polymerization environment, but also significantly boost the electrochromic properties.
研究领域:
材料科学
·
电化学
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产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2024
·
IF 13.3
Pingping Wu,Lin Li,Songtao Shao,Junchao Liu,Jingxia Wang
Poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) and polyvinylidene fluoride-hexafluoropropylene copolymer (PVDF(HFP)) are famous materials for developing flexible sensors, their conductivity, wettability, and piezoelectricity are affected by solvents. However, challenges remain in constructing multi-signals sensor by integrating PEDOT:PSS and PVDF(HFP) through solvent induced strategy, and existing sensors lack the intelligent extraction of stimulus information and accurate recognition of multimodal applications. In this work, a bioinspired flexible sensor with strain-pressure-humidity triple-signals is constructed based on PEDOT:PSS-PVDF(HFP) film (P-P film) through the synchronous induction effect of dimethyl sulfoxide (DMSO). The P-P film with double-layer structure presents excellent conductivity (800 S/cm), piezoelectricity (output voltage, 0.13 V-0.17 V), and humidity sensitivity (response/recovery time, 1.15 s/0.42 s). This phenomenon is resulted from the conformational transition of PEDOT, β -phase content enhancement of PVDF(HFP), and removal of insulated PSS under induction effect of DMSO. The data analysis, mining, and classification are performed through machine learning, which contribute to the recognition rates for different change degree of strain, pressure, and humidity are 93.35 %, 94.59 %, and 99.95 %, respectively. Importantly, a high-precision recognition (97.46 %) for multimodal applications is achieved by intelligently extract the features of strain-pressure-humidity triple-signals. This work is beneficial for improving the performance of existing sensors and developing new high-performance materials with the assistance of machine learning.
研究领域:
材料科学
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人工智能
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生物仿生学
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产品关联
DOI
高影响因子
Advanced Fiber Materials
·
2023
·Vol. 6
·期 2
·367-386
·
IF 16.1
He Guifang,Ning Fanggang,Liu Xiang,Meng Yaxin,Lei Zhiwei,Ma Xianda,Tian Mingwei,Liu Xuqing,Zhang Xiansheng,Zhang Xueji,Qu Lijun
High-performance wearable electronics are highly desirable for the development of body warming and human health monitoring devices. In the present study, high electrically conductive and photothermal cotton yarns (CYs) with long-term stability were prepared as wearable electronics. The process contains back-to-back decoration of the fiber surface by Ti 3 C 2 T x (MXene) nanosheets, and the poly (3,4-ethylenedioxythiophene) polystyrene sulfonate (PEDOT: PSS) composite, to form a core–shell structure (MP@CY). The addition of a small amount of PEDOT: PSS plays a dual role of protecting the MXene from oxidation and increasing the electrical conductivity. The resulting yarn exhibits excellent electrical conductivity (21.8 Ω cm −1 ), rapid electrothermal response, and superb photothermal conversion capability, supporting its application as an optical/electrical dual-drive heater. A three-dimensional (3D) honeycomb-like textile wearable heater based on MP@CY as weft yarn demonstrates outstanding electrical thermal properties (0–2.5 V, 30–196.8 °C) and exceptional photothermal conversion (130 mW cm −2 , 64.2 °C). Using an Internet of Things (IoT) microcontroller and Espressif (ESP) electronics chip, which are combined with wireless fidelity (Wi-Fi) and smartphone, real-time visualization and precise control of the temperature interface can be achieved. Furthermore, MP@CY-based knitted sensors, obtained by hand-knitting, are utilized for monitoring human movement and health, exhibiting high sensitivity and long-term cycling stability. Graphical Abstract
研究领域:
材料科学
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纺织工程
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电子工程
✓ 已验证
DOI
高影响因子
ACS Applied Energy Materials
·
2022
·
IF 6.959
Xianmin Zhou,Xinyun Dong,Yang Liu,Wen Wang,Wanxia Wei,Jianping Chen,Tiefeng Liu,Yinhua Zhou
Solution-processable poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) is a widely used hole transporting layer (HTL) in organic solar cells (OSCs). However, it is a challenge to adopt it as the HTL on hydrophobic active layers to fabricate inverted OSCs. Surfactants are generally added to improve the wettability of aqueous PEDOT:PSS. In this work, we report that surfactants could induce a change in the work function (WF) of PEDOT:PSS and significantly influence the device performance. Fluorine-containing surfactants could deliver higher device performance than fluorine-free surfactants because the fluorine-free surfactants decrease the WF of PEDOT:PSS, which results in poor electrical contact between the WF of PEDOT:PSS and the highest occupied molecular orbital (HOMO) level of the polymer donor of the active layer. With the fluorine-containing surfactants, we deposited aqueous PEDOT:PSS on the hydrophobic active layer with good film quality and high WF and further fabricated inverted OSCs with comparable performance to the reference device with evaporated MoO3 as the HTL.
研究领域:
材料科学
·
能源科学
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产品关联
DOI
高影响因子
Journal of Materials Chemistry C
·
2023
·Vol. 11
·期 27
·9355-9365
·
IF 6.4
Qiang Gao,Chao Li,Mingxu Wang,Jiadeng Zhu,Chunxia Gao
Biomedical hydrogels always suffer from curvilinearity, deformability, and wetness associated with bio-tissues, which are therefore limited by low stability and longevity in practical applications. To overcome these issues, we have proposed a robust PAA/PEDOT conductive hydrogel and investigated its performance by using a low-crosslink-density polyacrylic acid (PAA) hydrogel with 82 wt% water. Meanwhile, poly(3,4-ethylenedioxythiophene):poly (styrene sulfonate) (PEDOT:PSS) has been used as both a major junction point and a conducting network contractor. Benefiting from the introduction of PEDOT:PSS, the resultant composite hydrogel exhibits strong adhesion (37.2 kPa), well-matched modulus with skin tissue (∼10 kPa), low swelling (2.88), and negligible hysteresis (η = 2.7% of 200% stretching, energy loss coefficient). As a scalable application platform, we have further demonstrated the potential application of this novel hydrogel as body-conformable electronics in a series of conceptual displays, including a full range of human motion responses, ECG signal detection, TENG device assembly, and energy harvesting application.
研究领域:
生物医学工程
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材料科学
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2024
·
IF 13.3
Ling Zhu,Yuqian Zhang,Shuai Chen,Zecheng Lin,Yuchen Zhang,Xiaowen Xie,Yongluo Qiao
Organic electrochromic conducting polymers (CPs) are at the forefront of flexible and ultra-thin display electronics. Solution processable poly(3,4-ethylenedioxythiophene):polystyrene sulfonate (PEDOT:PSS) exhibits excellent electrical and electrochemical behavior in line with great processability, stability, and other promising properties. However, their uses are limited by the weak mechanical properties, wet instability, as well as inevitable conflicts among different functionalities and structural characteristics, etc. In this study, we designed and fabricated a high-mechanical-strength electronic “paper”, PEDOT:PSS/PEG-UPy film, employed a thermoplastic polyurethane poly(ethylene glycol)-2-amino-5-(2-hydroxyethyl)-6-methylpyrimidin-4-ol (PEG-UPy) using diverse processing (drop coating, spin coating, blade coating and 3D printing) of its “electric ink (E-ink)” from the mechanical mixture of its isopropanol (IPA) solution with aqueous PEDOT:PSS dispersion. Compared to PEDOT:PSS film, the incorporation of supramolecular chain-expanding unit 2-amino-4-hydroxy-6-methylpyrimidine (UPy) into the PEG-UPy molecular backbone resulted into optimized self-supporting (substrate-free) film of PEDOT:PSS/PEG-UPy(10 wt%) which showed great flexibility, enhanced mechanical strength (elongation at break 47.08 %, tensile strength of 19.16 MPa, toughness 7.973 MJ m − 3 ), considerable electrical properties (0.509 S cm −1 ), desirable physical properties including resistance to abrasion and solvent-wiping, and excellent surface-interface properties (e.g., hardness of 3H, adhesion of level 0, glossiness of 91). Its electrochromic capabilities include an optical contrast (ΔT) value of 67 %, a fast redox reaction (4 s and 3 s, respectively), and a coloring efficiency (722.19 cm 2 C −1 ). Similar to paper, they can be easily tailored or folded into a variety of forms, but have greater advances on dense morphology, flat surface, considerable optical transparency (79.5 %), as well as robust resistance to mechanical damage (in the case of bending, stretching, and folding, etc.), water (immersing > 150 days), and dirt. The combined effect of molecular design of PEG-UPy, abundant hydrogen-bonded cross-linking interaction and “good” solvent effect of IPA to PEDOT:PSS play important roles in this system. This is the first work on solution processable PEDOT:PSS-based electrochromic “paper” being able to meet much comprehensive performance requirements for the application in practical complex working environment.
研究领域:
材料科学
·
化学工程
·
柔性电子
✓ 已验证
产品关联
DOI
高影响因子
Small
·
2023
·
IF 13.3
Xiankan Zeng,Cheng Yan,Qungui Wang,Jingjing Cao,Xuehai Fu,Shiyu Yang,Yongjian Chen,Lunyao Pan,Wen Li,Weiqing Yang
The rapidly developed metal halide perovskite light-emitting diodes (PeLEDs) are considered as a promising candidate for next-generation display and illumination, but the unbalanced charge transport is still a hard-treat case to restrict its efficiency and operational stability. Here, a high curvature PEDOT:PSS transport layer is demonstrated via the self-assembly island-like structures by the incorporation of alkali metal salts. Benefiting from the dielectric confinement effect of the high curvature surface, the modified CsPbBr 3 -based PeLEDs present a 2.1 times peak external quantum efficiency (EQE) from 6.75% to 14.23% and a 3.3 times half lifetime ( T 50 ) from 3.96 to 13.01 h. Besides, the PeLEDs show high luminance up to 44834 cd m −2 . Evidently, this work may provide a deep insight into the structure-activity relationship between the micro-structures at the PEDOT:PSS/perovskite interface and the performance of PeLEDs, and crack the codes for ameliorating the performance of PeLEDs via interfacial micro-structured regulation.
研究领域:
材料科学
·
光电子学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Applied Nanoscience
·
2019
·Vol. 9
·期 8
·1971-1979
·
IF 3.198
Gu Ze-Zeng,Tian Ying,Geng Hong-Zhang,Rhen Danielle S.,Ethiraj Anita Sagadevan,Zhang Xingcai,Jing Li-Chao,Wang Tao,Xu Zi-Han,Yuan Xiao-Tong
Carbon nanotubes (CNTs) and poly(3,4-ethylenedioxythiophene):poly (styrene sulfonate) (PEDOT:PSS) were employed to prepare sandwich-structured CNT/PEDOT:PSS/CNT transparent conductive films (TCFs) on flexible polyethylene terephthalate (PET) substrate by a spraying method. Based on the film morphology, we suggest that the CNTs were embedded in PEDOT:PSS. The structured film was more stable and did not peel off during post-processing nitric acid treatment. Ethylene glycol (EG) was used to improve the conductivity of the film, and the best ratio of PEDOT:PSS to EG was 10:5. XPS and Raman spectroscopy studies revealed that the non-conductive sodium dodecylbenzene sulfonate and PSS were removed during the nitric acid treatment. TCF sheet resistance as low as 95.15 Ω/sq at 87.72% transmittance (at a wavelength of 550 nm) was obtained. When the CNT/PEDOT:PSS/CNT-TCF was used as an anode in an organic light emitting diode, the high luminance of the device was 1598 cd/cm 2 at 14 V, and the maximum current efficiency was 1.5 cd/A at 13 V.
研究领域:
材料科学
·
电子工程
✓ 已验证
DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
·
2024
·Vol. 35
·期 1
·1-11
·
IF 2.8
Changshi Hao,Yiding Wang,Hongpeng Wu,Shaojing Duan,Bo Liu,Luting Yan
We successfully developed a GH-PP-Pt/GCE electrode by compounding graphene hydrogel (GH) with poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate) (PEDOT:PSS), and in situ electrodeposition of Pt nanoparticles. The experimental results prove that the performance of GH-PP-Pt/GCE to trace copper ions significantly improved, the sensitivity reaches 45.673 µA/µmol L −1 , the limit of detection is as low as 9.9 nmol L −1 , and the linear range is 0.08–10 µmol L −1 . Its detection ability is at a relatively high level among the existing Cu 2+ electrochemical detection sensors, and the repeatability, stability, and anti-interference are good.
研究领域:
分析化学
·
材料科学
·
电化学传感器
✓ 已验证
产品关联
DOI
高影响因子
NEW JOURNAL OF CHEMISTRY
·
2020
·Vol. 45
·期 1
·208-216
·
IF 3.288
Zhonghua Zhao,Xiang Yuan,Yicheng Huang,Jikui Wang
Conductive hydrogels are promising flexible conductors for human motion monitoring. However, this kind of wearable strain sensor has often shown weak mechanical properties. To overcome the inherent mechanical weakness and improve the electrical conductivity, CNT-Br/PEDOT:PSS/PAAS triple-network penetrating conductive hydrogels (CBP) are fabricated. The n-butylimidazolium bromide salt-functionalized MWCNTs (CNT-Br) as conductive fillers form a three-dimensional conductive path through the crosslinking agent XR-100, penetrating with the skeleton of crosslinking sodium polyacrylate. The conductive liquid PEDOT:PSS is further evenly dispersed in the penetrating double network to further enhance the electrical conductivity of the hydrogels. CNT-Br without obvious agglomeration significantly improved the thermal stability and mechanical properties of CBP. Moreover, CNT-Br enabled the PEDOT:PSS components to be more evenly dispersed in the PAAS matrix. Due to the good conductive paths inside the hydrogels, the maximum electrical conductivity (CBP10) increases to 10.35 mS cm−1, which is 415% higher than that of pure P1. Our work provides a method to prepare conductive hydrogels with high electrical conductivity and excellent mechanical properties, which can be used for human joint motion detection.
研究领域:
材料科学
·
生物医学工程
·
可穿戴技术
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）