ACS Applied Materials & Interfaces
·
2022
·
IF 10.383
Yue Zhou,Liupeng Zhao,Wei Tao,Tianshuang Wang,Peng Sun,Fangmeng Liu,Xu Yan,Geyu Lu
Sensing materials with fiber structures are excellent candidates for the fabrication of flexible pressure sensors due to their large specific surface area and abundant contact points. Here, an ultrathin, flexible piezoresistive pressure sensor that consists of a multilayer nanofiber network structure prepared via a simple electrospinning technique is reported. The ultrathin sensitive layer is composite nanofiber films composed of poly (3,4-ethylenedioxythiophene):poly (styrenesulfonate) and polyamide 6 (PEDOT:PSS/PA6) prepared by simultaneous electrospinning. PEDOT:PSS conductive fibers and PA6 elastic fibers are interwoven to form a multilayer network structure that can achieve ultrahigh sensitivity by forming a wealth of contact points during loading. In particular, gold-deposited PA6 fibers as upper and lower flexible electrodes can effectively increase the initial resistance. Due to this special fiber electrode structure, the sensor is able to generate a large electrical signal variability when subjected to a weak external force. The devices with different sensing properties can be obtained by controlling the electrospinning time. The sensor based on the PEDOT:PSS/PA6 nanofiber network has high sensitivity (6554.6 kPa–1 at 0–1.4 kPa), fast response time (53 ms), and wide detection range (0–60 kPa). Significantly, the device maintains ultrahigh sensitivity when cyclically loaded over 10,000 cycles at 5 kPa, which makes it have great prospects for applications in human health monitoring and motion monitoring.
研究领域:
材料科学
·
生物医学工程
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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
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纳米技术
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DOI
高影响因子
ORGANIC ELECTRONICS
·
2019
·
IF 3.495
Cheng Chen,Yan-Hua Liu,Ming Zhu,Shi-Qing Zhao,Wen-Wen Xu,Linsen Chen,Wenbin Huang
Electrochromic devices are emerging as a futuristic technology for flexible electronics with the practical application values in energy-saving, displaying and military camouflage, however, the limitations in the optical, electrical and mechanical properties of the existing transparent conducting electrodes (TCEs) appear as a major obstacle for realizing high performance flexible electrochromic devices. In this work, we have proposed and demonstrated a fast-response and bendable polymer poly (3,4-ethylenedioxythiophene):poly (styrenesulfonate) (PEDOT: PSS) electrochromic device based on the embedded nickel (Ni) grid electrode. The Ni grid electrode, fabricated though patterned electroplating, has low sheet resistance (~1.3 Ω/sq), high transparency (~80%), excellent mechanical reliability and long-term chemical stability, exhibiting a figure of merit of 1250, surpassing the most existing TCEs. In addition, we have proposed a compact electrochromic architecture with the electrochromic PEDOT: PSS layer and solid polymer electrolyte being sandwiched between two embedded Ni grid electrodes. The device shows a short coloration and bleaching time (~1 s for 90% optical contrast), a high coloration efficiency (325 cm 2 /C) and excellent mechanical reliability (optical contrast retention ~80% after 1000 bending circles), paving a way for high performance flexible electronics.
研究领域:
材料科学
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电子工程
·
光学
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DOI
高影响因子
Journal of Materials Chemistry C
·
2024
·
IF 5.7
Jun Ma,Jiahui Wang,Junli Hu,Yichun Liu
Flexible near-infrared (NIR) organic photodetectors (OPDs) are promising for health monitoring and wearable electronic applications, but suffer from poor sensitivity related to the low work function anode. In this study, we developed flexible NIR OPDs based on a high work function PEDOT:PSS anode. The optimized PEDOT:PSS anode (SFD-PH1000) exhibits a high conductivity of 4400 S cm−1 on the PEN substrate and a high work function of 5.07 eV, which effectively blocks reverse electron injection in OPDs. As a result, the flexible NIR OPD based on SFD-PH1000 anode exhibits one order of magnitude reduction in dark current density and a three-time increase in specific detectivity compared with that based on the traditional ITO anode. The SFD-PH1000-based flexible OPD also shows markedly superior mechanical flexibility, and can monitor heart rate and blood oxygenation in photoplethysmography test with an error less than 3%.
研究领域:
材料科学
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生物医学工程
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光学工程
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产品关联
DOI
高影响因子
EUROPEAN POLYMER JOURNAL
·
2024
·
IF 5.8
Chao Li,Zecheng Yang,Jiadeng Zhu,Chunxia Gao,Mingxu Wang,Qiang Gao
Hydrogel is a promising material for wearable electronics due to its good mechanical properties, electrical conductivity and body adaptability. However, subzero freezing and water loss under high temperature or prolonged placement are great challenges for hydrogels. Here, polyacrylic acid / poly (3,4-ethylenedioxythiophene): poly (styrene sulfonate) (PAA/PEDOT: PSS) ionogels were designed by entangling PAA and PEDOT: PSS chains with each other in a binary solvent system of water and ionic liquid (IL) and chemical cross-linking by N, N’ -methylene bisacrylamide (MBA). It has excellent mechanical properties (8.3 kPa, > 500 %), skin-adapted Young's modulus (<10 kPa), high conductivity (8.06 S·m −1 ), and strong adhesion (13.3 kPa). Ionogel has a sensitive response as a sensor (GF = 2.08, 0–200 %; GF = 3.64, 200–400 %; GF = 4.58, 400–510 %). Especially, the freeze-resistance and long-term moisturizing properties make ionogels exhibit long-lasting and robust utility. As a scalable application platform, we demonstrate the potential applications of this novel ionogel as a body-conformable electronic product in a series of conceptual demonstrations, including full range of human motion response, human–machine interaction (HMI), temperature signal detection and TENG device assembly.
研究领域:
材料科学
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生物医学工程
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产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2025
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IF 8.2
Ming Chen,Hansheng Chen,Jiale Li,Zihao Xia,Miaoxuan Wu,Yuyang Xie,Shihao Zhang,Qian Zhang,Chen Xie,Shenghua Liu
In organic solar cells (OSCs), the hole transport layer (HTL) plays a pivotal role in enabling efficient charge extraction and transport. However, the conventional HTL material PEDOT:PSS suffers from low conductivity and insufficient electron-blocking capability, thereby limiting device performance. Herein, we present a facile yet effective modification strategy by incorporating m-aminobenzoic acid (MABA) and glycine (Gly) into PEDOT:PSS, which can markedly improve its film properties even at low concentrations (1 mg mL–1). Comparative investigations reveal that, relative to Gly, MABA incorporation more effectively reduces the PSS/PEDOT ratio, induces a higher degree of conformational transition in PEDOT chains, and forms a denser conductive network, thereby enhancing film conductivity, hole mobility, and interfacial contact with the active layer. Device characterization further demonstrates that MABA doping significantly suppresses dark current and interfacial recombination in OSCs, leading to improved charge transport and collection efficiency. As a result, OSCs employing PEDOT:PSS + MABA as the HTL deliver champion power conversion efficiencies of 17.17% (PM6:Y6), 19.14% (PM6:L8-BO) and 19.61% (D18:L8-BO). This work offers a straightforward strategy for PEDOT:PSS modification and provides valuable insights into the design of high-performance OSCs.
研究领域:
材料科学
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光伏技术
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有机电子学
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聚合物化学
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产品关联
DOI
PubMed
高影响因子
CHEMISTRY OF MATERIALS
·
2023
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IF 8.6
Jiawen Yu,Fajuan Tian,Wen Wang,Rongtai Wan,Jie Cao,Chen Chen,Dianbo Zhao,Jingcheng Liu,Jiang Zhong,Fucheng Wang,Qi Liu,Jingkun Xu,Baoyang Lu
Poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS)-based hydrogels have emerged as ideal interfacing materials for bioelectronics because of their intriguing electrical, mechanical, and biological properties. However, the development of high-performance PEDOT:PSS-based hydrogels simultaneously achieving high conductivity, robust mechanical properties, and accessibility for advanced manufacturing technologies remains a critical challenge for further advancing such materials toward practical applications. Herein, we develop a highly conductive, intrinsically soft, tough yet stretchable PEDOT:PSS-based hydrogel via a simple PSS-chain engineering strategy of introducing thermally cross-linkable N-(hydroxymethyl)acrylamide segments. The resultant PEDOT:PSS hydrogel exhibits high electrical conductivity (1850 S m–1), high stretchability (>50%), low Young’s modulus (4 MPa), and superior toughness (400 kJ m–3), satisfying multiple property requirements for practical bioelectronic applications. Based on this material, we further develop a novel PEDOT:PSS ink with superior 3D printability for direct ink writing 3D printing, enabling us to facilely fabricate bioelectronic devices like soft skin electrodes comparable to commercial products via multi-material 3D printing.
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DOI
高影响因子
ELECTROCHIMICA ACTA
·
2026
·
IF 5.8
Yuchuan Zhu,Xinyu Huang,Ruoxi Yang,Ruoyao Tong,Changqing Lu,Ruirui Yue
One-pot synthesis of rGO/PEDOT:PSS/Ru composite for targeted flavonoid sensing. • PEDOT:PSS prevents rGO restacking and enables uniform Ru nanoparticle dispersion. • Interfacial coupling downshifts Ru d-band center to accelerate oxidation kinetics. • Ternary architecture greatly minimizes charge-transfer resistance at the interface. Flavonoid quantification is essential for pharmaceutical and food quality control, yet direct electrochemical detection is hindered by sluggish heterogeneous electron-transfer kinetics and limited current responses at trace concentrations on unmodified electrodes. We report an electrochemical sensing platform based on an rGO/PEDOT:PSS/Ru nanocomposite. Structural characterization indicates that π-π stacking between rGO and PEDOT:PSS prevents graphene restacking, enabling uniform Ru nanoparticle distribution. Crucially, interfacial electronic coupling within the ternary network downshifts the d-band center of the Ru nanoparticles, thereby accelerating the electro-oxidation kinetics. Electrochemical kinetic analyses reveal that the analytes undergo an adsorption-controlled, two-electron and two-proton (2e - /2H + ) transfer pathway. This architecture significantly minimizes charge-transfer resistance and expands the electroactive surface area. Differential pulse voltammetry delivered linear ranges of 0.006–65.0 μM (rutin), 0.05–70.0 μM (quercetin), and 0.02–50.0 μM (baicalin), with detection limits of 3.7, 17.3, and 6.3 nM, respectively. The sensor maintained consistent responses over 15 days and exhibited reliable selectivity against common interferents. Recovery studies in Sophora japonica, onion, and Scutellaria baicalensis extracts correlated with UV–Vis reference data, illustrating how coupling conducting polymers with redox-active nanoparticles can modulate interfacial electron-transfer pathways for targeted electrochemical sensing. Download: Download high-res image (354KB) Download: Download full-size image
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产品关联
DOI
高影响因子
MICROCHEMICAL JOURNAL
·
2025
·
IF 5.1
Xinyu Huang,Junhong Li,Huan Zhang,Xuemin Duan,Lihua Yao,Ruirui Yue,Jingkun Xu
As a natural flavonoid glycoside, rutin has been made into many medical products due to its unique pharmacological activity. However, excessive intake of rutin is harmful to health. Therefore, developing a new sensing technique to achieve highly sensitive, rapid and on-site detection of rutin is of great significance to ensure food and medicine safety. Herein, an electrochemical sensing platform was proposed based on the nanocomposite of functionalized multi-wall carbon nanotubes/poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate)/Ru nanoparticles (MWCNT-COOH/PEDOT:PSS/Ru) for rutin detection. The characterization techniques reveal that MWCNT-COOH and PEDOT:PSS crossed together forming a 3D interconnecting structure with plenty of areolations and high specific surface area, and Ru nanoparticles uniformly dispersed on the surface of MWCNT-COOH/PEDOT:PSS. Moreover, due to the good film reforming property of PEDOT:PSS, the as-obtained MWCNT-COOH/PEDOT:PSS/Ru composite shows special surface appearance as flexible free-standing film, which can be freely cut and used as sensing platform directly. Electrochemical experiments confirmed that MWCNT-COOH/PEDOT:PSS/Ru composite film performed satisfactory sensing properties toward rutin detection with wide linear ranges of 0.01 ∼ 0.7 μM and 0.7 ∼ 50 μM, low detection limit of 6.1 nM and high sensitivity of 79.43 μA μM −1 cm −2 . Besides, the composite sensing platform also exhibits high selectivity, reproducibility, and stability. During actual sample testing, the sensing platform was successfully applied for rutin detection in rutin pharmaceutical tablets and black buckwheat tea, showing promising application prospects in rapid, convenient, and high-efficiency on-site test.
研究领域:
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
高影响因子
CHEMICAL ENGINEERING JOURNAL
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2024
·
IF 13.3
Kai Zhao,Yanbo Zhao,Jing Xu,Rong Qian,Zhumin Yu,Changqing Ye
Conductive hydrogels have received extensive research interest in different application scenarios such as electronic skin, intelligent robotics and health monitoring. However, fabrication of competent conductive hydrogels with high sensing performance, self-healing and adhesion is still hard to achieve yet demanded. Here, we develop a series of novel conductive hydrogels by using poly(3,4-ethylenedioxythiophene):polystyrene sulfonate (PEDOT:PSS) to encapsulate liquid metal nanoparticles (LMNPs) in polyvinyl alcohol (PVA) matrixes. Thanks to the participation of PEDOT:PSS in polymeric network, the obtained LMNP-PEDOT:PSS-PVA (LMPP) hydrogels exhibit enhanced tensile strength (0.08 MPa), resilience and high conductivity (4.85 S/m). Besides, the introduction of PEDOT:PSS greatly stabilizes and enriches the LMNP-based conductive paths, therefore improving the strain sensing performance of hydrogels. More intriguingly, the LMPP hydrogels own excellent self-healing and adhesive properties due to the abundance of reversible bonds and functional groups within polymeric network. Leveraging these merits, such LMPP hydrogels can be applied as competent wearable devices for tracking various human motions in real-time, including joint movements and facial expressions. This work offers a new strategy for stabilizing LMNPs in polymeric network, which will contribute to the development of multifunctional conductive hydrogels.
研究领域:
材料科学
·
生物医学工程
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产品关联
DOI
高影响因子
ACS Applied Electronic Materials
·
2026
·
IF 4.7
Long Yu,Yi’na Yang,Tianran Zhao,Liyang Zhao,Jia Chen,Chunna Yu,Chang Zhao,Guangjian Xing
As biocompatible soft materials with stimuli-responsive characteristics, wearable strain sensors based on conductive hydrogels hold substantial promise across diverse engineering fields. However, their practical applications are often hindered by limited sensitivity and issues related to single functionality. This study presents a multifunctional composite hydrogel composed of PAA/PVA/PEDOT:PSS/Ti3C2TX designed for flexible strain sensors and synthesized through a straightforward one-pot polymerization technique. The incorporation of Ti3C2TX MXene nanosheets significantly enhances the porous architecture and mechanical properties of the hydrogel. This hydrogel features a combination of covalent and physical cross-linking networks, showcasing remarkable elastic recovery, puncture resistance, stretchability, robust interfacial adhesion, and self-healing capabilities. The hydrogel-based strain sensor demonstrates exceptional performance, including high sensitivity (GF = 21.36 in the 31–50% strain range), a low detection limit (53.0 Pa), rapid response and recovery times (42 ms/38 ms), and long-term stability (>1,600 cycles). Its practical applications in information encryption, handwriting recognition, and wireless robotic motion monitoring highlight its potential as a versatile platform for advanced flexible sensing technologies.
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产品关联
DOI
高影响因子
Advanced Materials Interfaces
·
2021
·Vol. 9
·期 16
·2101462
·
IF 6.147
Jing Li,Guoyun Zhou,Yan Hong,Chia-Yun Chen,Wei He,Shouxu Wang,Yuanming Chen,Chong Wang,Yukai Sun,Chingping Wong
Copper conductive pattern should provide dependent flexibility on coated cloth-fiber to support the signal transmission or current carrier for stretchable and reliable electronics. The design of copper phthalocyanine (CuPc) introduced in poly(3,4-ethylenedioxythiophene) and polystyrene sulfonate acid (PEDOT:PSS) polymer network promotes the realization of copper electro-metallization from its inner active dots, leading to a structure of PEDOT:PSS/CuPc-rooted copper coating. The bridge-layer of elastic PEDOT:PSS/CuPc interfacing and catalyzing the copper layer with excellent ductility and antioxidation, is developed to sustain the required stretchability for electronics on regular cloth polyurethane fiber. Experimental results demonstrate that this design achieves a perfect 80% conductivity of bulk copper, an ignored resistance changes after bending test, tensile test, 10 days’ natural oxidation, and 10 times’ machine-washing, respectively. Accordingly, a breakthrough is made to supply the compatible integrity of copper line on cloth fiber for wearable electronics.
研究领域:
材料科学
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柔性电子学
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导电聚合物
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可穿戴技术
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电沉积
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）