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导电聚(3,4-二氧乙基噻吩)应用研究进展 总被引：1，自引：0，他引：1
聚(3,4-二氧乙基噻吩)(PEDOT)是目前发现的导电态最稳定的导电高分子之一,在抗静电、塑料内存、电解电容器、有机太阳能电池、有机电致发光显示器件等领域得到了广泛研究和应用.本文简要综述PEDOT在这些领域的应用进展情况. 相似文献
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Yijie Xia Kuan Sun Jianyong Ouyang 《Advanced materials (Deerfield Beach, Fla.)》2012,24(18):2436-2440
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Pritom J. Bora Amith G. Anil Kalarickaparambil J. Vinoy Praveen C. Ramamurthy 《Advanced Materials Interfaces》2019,6(22)
Conducting polymer ultrathin films with high absolute electromagnetic interference (EMI) shielding effectiveness (SE) is highly desirable for their facile processability. The conducting polymer, poly(3,4‐ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS), possesses excellent conductivity. However, a thin film of PEDOT:PSS is water soluble, making it disadvantageous for EMI shielding. Here, a cross‐linked, water‐insoluble, ultrathin film of PEDOT:PSS for EMI shielding is evaluated. A 9 ± 1 µm thick cross‐linked PEDOT:PSS film exhibits an average EMI SE of 40 dB. Standard electrodynamics simulation also confirms the experimental data. The most realistic parameter of EMI shielding for practical application is the absolute SE. The absolute SE of cross‐linked PEDOT:PSS film is obtained to be 51 480 dB cm2 g−1, highest ever reported. Mechanistically, the absorption predominant SE originates from the cross‐linking of PEDOT:PSS, resulting in a higher conductivity (769 S cm−1) and creating internal reflecting surfaces. The mechanical strength, solution processability, and outstanding absolute EMI SE make cross‐linked PEDOT:PSS film to be an attractive EMI shield for real‐time applications such as in defense arena. 相似文献
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Highly Deformable and See‐Through Polymer Light‐Emitting Diodes with All‐Conducting‐Polymer Electrodes 
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下载免费PDF全文 Seyoung Kee Nara Kim Byoungwook Park Bong Seong Kim Soonil Hong Jong‐Hoon Lee Soyeong Jeong Ahryun Kim Soo‐Young Jang Kwanghee Lee 《Advanced materials (Deerfield Beach, Fla.)》2018,30(3)
Despite the high expectation of deformable and see‐through displays for future ubiquitous society, current light‐emitting diodes (LEDs) fail to meet the desired mechanical and optical properties, mainly because of the fragile transparent conducting oxides and opaque metal electrodes. Here, by introducing a highly conductive nanofibrillated conducting polymer (CP) as both deformable transparent anode and cathode, ultraflexible and see‐through polymer LEDs (PLEDs) are demonstrated. The CP‐based PLEDs exhibit outstanding dual‐side light‐outcoupling performance with a high optical transmittance of 75% at a wavelength of 550 nm and with an excellent mechanical durability of 9% bending strain. Moreover, the CP‐based PLEDs fabricated on 4 µm thick plastic foils with all‐solution processing have extremely deformable and foldable light‐emitting functionality. This approach is expected to open a new avenue for developing wearable and attachable transparent displays. 相似文献
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Surface treatments with conducting polymers are effective in ameliorating charge capacities and cycling performances for a wide range of lithium‐ion batteries such as Li‐layered transition metal oxide, Li‐sulfur, and Li‐air batteries. So far, however, very little is known about the key process directly involved with the improvement of cell performance and stability. The present study examines how a conducting polymer can contribute to charge capacity enhancement, employing poly(3,4‐ethylenedioxythiophene):poly(styrene‐sulfonate) coating on the lithium‐layered transition metal oxide cathode. The property of the electrode interface layer is studied on the basis of the local atomic environments. The conducting polymer not only hinders the formation of LiF, carbonates, and semicarbonates compounds but also renders the nature of the solid‐electrolyte interphase layer formed during electrochemical cycles. Furthermore, it inhibits the dissolution of the active material into the electrolyte and preserves the initial atomic states including the active material bulk. The coating enables good consistency in the local atomic environment with depth at the electrode interface, which in turn impedes the phase mismatch resulting from the surface reconstruction on the layered oxide electrode. This further mitigates the phase transformation of the active material, resulting in a lower voltage decay on charge–discharge. 相似文献
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导电聚合物在纳米太阳能电池中的应用研究 总被引：1，自引：0，他引：1
导电聚合物以其特殊的性质及种种优点而越来越广泛地应用于光电化学太阳能电池,文中主要介绍了导电聚合物作为全固态太阳能电池的电解质以及作为纳米光电化学太阳能电池敏化剂的应用研究。 相似文献
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采用Langmuir-Blodgett(LB)膜静电诱导沉积法制备聚3,4-乙烯二氧噻吩(PEDOT)高度有序导电聚合物复合薄膜,研究了薄膜的导电性能并进一步研究薄膜在改善器件性能方面的作用.并将其应用于有机电致发光二极管(OLED)器件的空穴缓冲层,将聚3,4-乙烯二氧噻吩/聚苯乙烯磺酸(PEDOT/PSS)复合LB沉积于纳米铟锡金属氧化物(ITO)电极上,制备了以复合LB膜为空穴缓冲层的OLED器件.发现复合LB膜改善了器件性能(启动电压降低,最大亮度增加),但进一步的研究表明LB膜器件在一定时间后出现性能劣化.I-V特性和X射线反射率(XRR)分析表明,薄膜的结构发生一定程度的改变是导致器件性能变差的可能原因. 相似文献
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《Advanced Materials Interfaces》2017,4(16)
Conducting polymers have shown great potential as a means to interface electronics with living tissues, toward a plethora of different biological applications ranging from in vitro to in vivo systems. However, the development of effective functionalization approaches to render this interface biomimetic still remains rather challenging, due to the lack of inherent surface functionalities in such polymers. Here, a straightforward and versatile modification strategy of poly(3,4‐ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS) surfaces is demonstrated for preferential and spatially confined cell adhesion and growth. By combining three simple surface modification steps, including chemical modification using self‐assembled monolayers and their selective laser ablation, this study is able to design either cell‐adhesive or cell‐repulsive patterns of various shapes on PEDOT:PSS films. Studies using Madin–Darby canine kidney II epithelial cells reveal preferential cell adhesion and growth with good precision following the preformed patterns. The proposed surface modification approach can be extended to encompass a variety of polymeric biomaterials, without affecting their bulk properties. 相似文献
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Gonzalo Pérez‐Mitta Waldemar A. Marmisollé Christina Trautmann María Eugenia Toimil‐Molares Omar Azzaroni 《Advanced materials (Deerfield Beach, Fla.)》2017,29(28)
The design of an all‐plastic field‐effect nanofluidic diode is proposed, which allows precise nanofluidic operations to be performed. The fabrication process involves the chemical synthesis of a conductive poly(3,4‐ethylenedioxythiophene) (PEDOT) layer over a previously fabricated solid‐state nanopore. The conducting layer acts as gate electrode by changing its electrochemical state upon the application of different voltages, ultimately changing the surface charge of the nanopore. A PEDOT‐based nanopore is able to discriminate the ionic species passing through it in a quantitative and qualitative manner, as PEDOT nanopores display three well‐defined voltage‐controlled transport regimes: cation‐rectifying, non‐rectifying, and anion rectifying regimes. This work illustrates the potential and versatility of PEDOT as a key enabler to achieve electrochemically addressable solid‐state nanopores. The synergism arising from the combination of highly functional conducting polymers and the remarkable physical characteristics of asymmetric nanopores is believed to offer a promising framework to explore new design concepts in nanofluidic devices. 相似文献
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用于聚合物电解质膜燃料电池中的质子导电膜 总被引：10，自引：0，他引：10
聚合物电解质膜燃料电池（PEMFC）是20世纪60年代兴起的第五代燃料电池,以其诸多优点正引起人们越来越多的关注和研究,其中作为电解质的功能高分子膜是这类燃料电池的“心脏”,起着隔离阴阳极,绝缘电子和选择性输运质子的作用。它的性能决定着PEMFC的输出功率,电池效率,成本及应用前景。文中对这类膜材料（包括全氟磺酸膜,掺杂酸型膜及接枝型磺酸膜等）的结构,性能及发展现状作了综述。并指出在膜材料上的突破将使燃料电池成为21世纪新能源的预言尽早成为现实。 相似文献
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Conjugated Polymers: Low‐Dimensional Conduction Mechanisms in Highly Conductive and Transparent Conjugated Polymers (Adv. Mater. 31/2015) 下载免费PDF全文
下载免费PDF全文 Asli Ugur Ferhat Katmis Mingda Li Lijun Wu Yimei Zhu Kripa K. Varanasi Karen K. Gleason 《Advanced materials (Deerfield Beach, Fla.)》2015,27(31):4664-4664
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The conducting polymer polyethylenedioxythiophene doped with polystyrene sulfonate (PEDOT:PSS) has become one of the most successful organic conductive materials due to its high air stability, high electrical conductivity, and biocompatibility. In recent years, a great deal of attention has been paid to its fundamental physicochemical properties, but its healability has not been explored in depth. This communication reports the first observation of mechanical and electrical healability of PEDOT:PSS thin films. Upon reaching a certain thickness (about 1 µm), PEDOT:PSS thin films damaged with a sharp blade can be electrically healed by simply wetting the damaged area with water. The process is rapid, with a response time on the order of 150 ms. Significantly, after being wetted the films are transformed into autonomic self‐healing materials without the need of external stimulation. This work reveals a new property of PEDOT:PSS and enables its immediate use in flexible and biocompatible electronics, such as electronic skin and bioimplanted electronics, placing conducting polymers on the front line for healing applications in electronics. 相似文献
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Saurabh Kumar Prabhakar Rai Jai Gopal Sharma Ashutosh Sharma Bansi Dhar Malhotra 《Advanced Materials Technologies》2016,1(4)
The development of a flexible, label free, low‐cost, and environment friendly biosensor platform is reported for sensitive and rapid detection of cancer biomarker based on poly(3,4‐ethylenedioxythiophene):poly(4‐styrenesulfonate)/polyvinyl alcohol nanofiber decorated conducting paper. This conducting paper based biosensor demonstrates improved sensing performance with linear detection range of 0.2–25 ng mL−1, high sensitivity of 14.2 μA ng−1 mL cm−2, and shelf life of 22 days for a carcinoembryonic antigen (cancer biomarker) detection. This modified conducting paper electrode is a promising alternative over expensive conventional electrodes (indium tin oxide, gold, and glassy carbon) for fabrication of smart point of care devices. 相似文献
