RSC Advances
·
2016
·Vol. 6
·期 63
·58733-58739
·
IF 3.289
Xuguang Zhang,Jianping Xu,Shaobo Shi,Xueliang Wang,Xiangguo Zhao,Ping Zhou,Zeming Liu,Chang Wang,Lan Li
The ferroelectric-like hysteretic I–V effect was observed in the multilayer film of PMMA/carbon quantum dot (CD)/PEDOT:PSS using ITO and Al metal as the electrodes. The multilayer film exhibited two different resistance states and larger hysteresis window under the electric field compared to the film without CD addition. The influence of additional CD layers on the short circuit current (Isc) and open circuit voltage (Voc) values is related to the interfacial polarization between PMMA and PEDOT:PSS layers. The introduction of a CD layer intensifies interfacial polarization for two dielectric layers, resulting in the larger hysteresis window. An interfacial polarization field E′ increases with the external electric field increasing and reaches a maximum value at the threshold voltage Voc of ±15 V. The switch reliability of the device is operated over 5 × 103 times in a succession of periodic pulses without any performance degradation.
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高影响因子
ORGANIC ELECTRONICS
·
2016
·
IF 3.471
Xu Huang,Heng Guo,Jian Yang,Kai Wang,Xiaobin Niu,Xiaobo Liu
Graphene oxide (GO) with single layer was moderately reduced at 200 °C for 4 h under N 2 . Then the moderately reduced graphene oxide (rGO) water solution was employed as an additive to tune the properties of conventional poly(ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) solution. It's found that the incorporation of rGO into PEDOT:PSS nearly did not change its transparency, hydrophilic property , or the surface roughness . So, the rGO/PEDOT:PSS composite was used as a hole transport layer (HTL) to fabricate perovskite solar cells (PSCs). As a result, PSCs with rGO/PEDOT:PSS as HTL exhibit improved power conversion efficiency than that of PSCs with PEDOT:PSS as HTL. Our findings show that moderately reduced rGO/PEDOT:PSS could be an efficient HTL to improve power conversion efficiency of PSCs.
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高影响因子
ACS Applied Polymer Materials
·
2024
·
IF 4.4
Meng Zhou,Siying An,Xiaowen Xie,Xiaoyu Luo,Ling Zhu,Zhixin Wu,Shuai Chen
Electronic materials capable of bionic self-healing have received extensive attention in view of the urgent need of extending device life, maintaining operation safety, and reducing renewal costs. Among them, conducting polymers (CPs), especially poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS), have become a research hotspot due to their intrinsic and tunable electrical conductivity, macromolecule nature with good processability, good stability, combination ability, etc. Herein, an all-organic PEDOT:PSS/poly(ethylene glycol)/2-amino-4-hydroxy-6-methylpyrimidine-encapsulated polyurethane film with high electrical conductivity, remarkable self-healing ability, excellent mechanical flexibility, and strong water resistance is created by the ingenious design of a multiple hydrogen-bonding strategy. Moreover, the film was fabricated easily from a solvent (water/methanol)-processable dispersion with fast drying and “green” advantages. The film crack can be healed by relatively low-temperature heating at 65 °C for 5 min with recovered smooth surface and electrochromic properties, including high optical contrast (ΔT) values of up to 68.2%, fast oxidation and reduction responses (0.24 and 0.49 s, respectively), and excellent coloration efficiency (246.4 cm2 C–1). The flexible electrochromic device employing this film as an active layer still maintained an ΔT value of more than 47% and can remain above 90% even after 1000 times of operation or mechanical bending. This research will greatly enhance the reliability of PEDOT:PSS-based organic film electronic devices.
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高影响因子
JOURNAL OF LUMINESCENCE
·
2024
·
IF 3.3
Hui Zhang,Zhenyang Wang,Zhixing Chen,Xingyue Zhang,Yuanming Zhou,Fei Mei
The two-dimensional transition metal carbide MXenes, often designated by Ti 3 C 2 T x , have garnered significant interest on account of their distinctive optoelectronic characteristics. In this paper, PEDOT:PSS/Ti 3 C 2 T x composite hole transport layer (HTLs) was prepared by adding the MXenes material Ti 3 C 2 T x into PEDOT:PSS, and quasi-two-dimensional perovskite light-emitting diodes (PeLEDs) were fabricated and investigated. While the addition concentration of Ti 3 C 2 T x was 0.25 mg/mL, the optimal device shows the maximum luminance of 6250 cd/m 2 , and the current efficiency of 6.17 cd/A, which is 133 % and 112 % higher than the reference device without Ti 3 C 2 T x , respectively. It is indicated that the additive incorporation of Ti 3 C 2 T x in PEDOT:PSS can improve the efficiency of hole injection and conductivity of hole transport layer, and passivate the defects of perovskite film, thus enhancing the optoelectronic performance of PeLEDs. The findings of this study indicate that the PEDOT:PSS/Ti 3 C 2 T x composite HTLs has considerable potential for application in PeLEDs.
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高影响因子
Journal of Coatings Technology and Research
·
2024
·
IF 2.3
An Siying,Li Zhanqi,Fang Jie,Chen Shuai,Fu Changqing,Qiao Yongluo
As one of the most studied intrinsically conductive polymers (ICPs), poly(3,4-ethylenedioxythiophene):polystyrene sulfonate (PEDOT:PSS), has been widely utilized in electronic applications. However, its relatively high cost, significant moisture absorption propensity, and poor mechanical properties (anti-scratch, hardness, adhesion, etc.) considerably limit its applicability. Herein, through facile oxidative polymerization of 3,4-ethylenedioxythiophene (EDOT) in the presence of waterborne epoxy emulsion (WEP) via one-pot preparation method, a series of waterborne PEDOT:PSS/epoxy dispersions were prepared. They were further combined with bio-based epoxy curing agent and various solvents such as propylene glycol monomethyl ether (PM) to reduce the curing agent’s viscosity and dimethyl sulfoxide (DMSO) to modulate the curing agent’s viscosity and the final coatings’ electrical conductivity. The surface morphology, bulk resistance, wettability, and water immersion stability of these coatings were investigated. Of them, PEDOT:PSS/epoxy/curing agent (DMSO) coating with optimal component ratio demonstrated advantages like enhanced electrical conductivity, improved water resistance (stable even after 45 days immersion), high hardness (2H), and strong adhesion ability (level 2) on glass substrates, etc. This work could facilitate the utilization of PEDOT:PSS in organic electronic fields like antistatic coatings, in a facile, reliable, and environmentally friendly manner.
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FIBERS AND POLYMERS
·
2024
·Vol. 25
·期 4
·1291-1299
·
IF 2.2
Li Zhilei,Zhou Jianping,Xu Yan,Shang Yukui,Chen Changhua,Ran Tongtong
Effective farmland management requires real-time monitoring of plant growth status and timely response to stressors. To achieve this goal, we utilized wire organic electrochemical transistors (WECTs) to convert ion signals in plant vasculature into electrical signals in circuits, enabling the detection of ion concentrations. In our study, we employed a flexible substrate composed of a core-sheath structure nanofiber yarn impregnated with poly(3,4-ethylenedioxythiophene): polystyrene sulfonate (PEDOT:PSS) as a semiconductor channel. The gate was made of silver wire, while silver paste was sprayed at both ends of the core-sheath yarn to serve as a source and drain. This configuration allowed us to construct a wire organic electrochemical transistor that exhibited modulation performance and sensitivity at low voltages, with a transconductance of 1.07 × 10 –4 S. We conducted sodium ion concentration testing and successfully achieved the sensing of sodium ions at concentrations ranging from 10 –4 to 10 –1 M. This study lays the groundwork for the future development of organic electrochemical transistors in plants, enabling in situ detection of sodium ion concentrations under salt stress.
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RSC Advances
·
2025
·Vol. 15
·期 11
·8719-8728
·
IF 4.6
Piao Luo,Kai Zhang,Nanjie Wu,Lanlan Wei,Shigui Peng,Qiao Fan,Tingting Luo,Yucheng Yin,Xiang Zhang,Yufei Liu,Min He,Jie Yu,Shuhao Qin
Poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) is a promising conductive polymer material, but its acidic nature leads to device deterioration and poor long-term durability. It is usual practice to neutralise PEDOT:PSS solutions with bases, resulting in a decrease of conductivity. The causes of the decline in conductivity remain disputed and uncertain. In this study, three bases (sodium hydroxide, ammonium hydroxide, and imidazole) were employed to treat PEDOT:PSS to investigate their effects on doping level, composition, and structure. The results show that bases may dedope PEDOT:PSS by removing the proton doping from the PEDOT chain. Meanwhile, insulating PSS is removed, and the aggregated structure is optimised to ensure that conductivity is not significantly reduced. The PEDOT:PSS treated with the weak base imidazole showed the least loss of conductivity due to only a modest decrease in doping level and the greatest loss of insulating PSS. Aluminium electrolytic capacitors made using imidazole pH-adjusted solutions have a capacitance ratio of up to 98.28% and an equivalent series resistance of 26 mΩ. These findings provide a valuable reference for developing high electrical characteristics and neutral PEDOT:PSS materials.
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PubMed
高影响因子
Nanomaterials
·
2024
·Vol. 14
·期 10
·866
·
IF 4.4
Guiming Liu,Zhao Huang,Jiujie Xu,Bowen Zhang,Tiesong Lin,Peng He
In the evolving landscape of portable electronics, there is a critical demand for components that meld stretchability with optical transparency, especially in supercapacitors. Traditional materials fall short in harmonizing conductivity, stretchability, transparency, and capacity. Although poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) stands out as an exemplary candidate, further performance enhancements are necessary to meet the demands of practical applications. This study presents an innovative and effective method for enhancing electrochemical properties by homogeneously incorporating Ru(III) into PEDOT:PSS. These Ru(III) PEDOT:PSS complexes are readily synthesized by dipping PEDOT:PSS films in RuCl3solution for no longer than one minute, leveraging the high specific capacitance of Ru(III) while minimizing interference with transmittance. The supercapacitor made with this Ru(III) PEDOT:PSS complex demonstrated an areal capacitance of 1.62 mF cm−2at a transmittance of 73.5%, which was 155% higher than that of the supercapacitor made with PEDOT:PSS under comparable transparency. Notably, the supercapacitor retained 87.8% of its initial capacitance even under 20% tensile strain across 20,000 cycles. This work presents a blueprint for developing stretchable and transparent supercapacitors, marking a significant stride toward next-generation wearable electronics.
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PubMed
高影响因子
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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高影响因子
Materials
·
2021
·Vol. 14
·期 23
·7112
·
IF 3.623
Shiqi Chen,Xiaolong Han,Peng Hong,Yue Zhang,Xiangyu Yin,Bingwei He
Flexible sensors have attracted extensive attention because of their promising applications in the fields of health monitoring, intelligent robots, and electronic skin, etc. During the COVID-19 epidemic, noncontact control of public equipment such as elevators, game consoles, and doors has become particularly important, as it can effectively reduce the risk of cross-infection. In this work, a noncontact flexible temperature sensor is prepared via a simple dip-drying progress, in which poly(3,4-ethylenedioxythiophene):poly(4-styrene sulfonate) (PEDOT:PSS) and printer paper served as the sensing material and the flexible substrate, respectively. We combined the highly sensitive temperature-responsive property of PEDOT:PSS with the good hygroscopicity of printer paper. The prepared sensor shows high sensitivity and good stability in noncontact sensing mode within the temperature range of 20–50 °C. To prove the practicability of the noncontact temperature sensor, a 3 × 2 sensing array is prepared as a noncontact human-machine interface to realize the interaction between player and “Pound-A-Mole game” and a Bluetooth car. These two demos show the sensor′s ability to perceive nearby temperature changes, verifying its application potential as a noncontact human-machine interaction interface.
研究领域:
材料科学
·
生物医学工程
·
电子皮肤
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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
·
能源科学
·
纳米技术
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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
·
电子工程
·
光学
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高影响因子
危险品化学品经营许可证（带存储）