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Showing 1 to 20 of 41 for “"conductive polymers"”.
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Electrical and optical properties of carbon nanotube intra-connects and conductive polymers
… intra-connects were deposited with electrically conductive polymer (ECP) in the realization of CNT/ECP hybrids. The process started by realizing two electrodes with sharp end on a silicon wafer using e-beam lithography. The intra-connects were then grown by use of chemical vapor deposition (CVD) …
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Oxidative chemical vapor deposition of conductive polymers for use in novel photovoltaic device architectures
The conductive polymer poly(3,4-ethylenedioxythiophene), (PEDOT), deposited via oxidative chemical vapor deposition (oCVD) has been investigated for use in organic electronic devices. The oCVD process as well as the application of oCVD PEDOT in photovoltaic devices is described. oCVD enables the …
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Synthesis and characterization of high thermal conductive polymers and fabrication of polymer based thermal strap
Polymers have infiltrated almost every aspect of modern technology. Without polymer products, the society would look very different. As one of the most important and common engineering materials, traditional polymers are both electrically and thermally insulating, due to its organic nature and …
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Liquid crystal photonic devices based on conductive polymers = Dispositivos fotónicos de cristal líquido basados en polímeros conductores
… characterization of liquid crystal lenses using conductive polymers as high resistivity electrodes. In the first part, several series of liquid crystal devices with dissimilar alignment layers (SiOx, slippery surface and PEDOT:PSS) are manufactured. Entire manufacturing protocols are fully …
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Electrospun nanofibers with tunable electrical conductivity
… high electrical conductivity of intrinsically conductive polymers, conductive electrospun fiber mats are promising for a variety of applications, such as multifunctional textiles, resistance-based sensors, flexible reversibly hydrophobic surfaces, organic photovoltaics, scaffolds for tissue …
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Low-grade heat conversion into electricity by thermoelectric and electrochemical systems
… materials are current limitations. Conductive polymers has become an attractive alternative to those materials, however they suffer from low Seebeck coefficient. Nanoscale composites of inorganic semiconductors with conductive polymers could improve low Seebeck coefficients and power …
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Investigation of Mechanical and Antibacterial Performance of Novel Polyaniline (PANI) Coatings via PLD
… advanced multifunctional coatings that combine conductive polymers with pulsed-laser-deposited (PLD) metallic nanolayers to enhance adhesion, mechanical strength, and antibacterial activity. Conductive polymers such as polyaniline (PANI) offer corrosion protection and electrical conductivity, …
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High-resolution direct ink writing of soft conductive materials
Conductive polymers are important materials that attract increasing attention in diverse fields due to their tunability and easy preparation. The various applications range from tissue-engineering scaffold in the biomedical field to intelligent electronics and energy storage devices. The ability to …
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Synthesis and Characterization of Some Rhenium Complexes
Plastics or polymers are thought to behave oppositely from metals. Ideally, polymers behave as insulators while metals conduct electricity. Shirakawa and coworkers discovered conductive polymers in 1977.1 These conductor polymers have been extensively studied, discovering that charge transfer …
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Modification of electrodes by electronically conductive polymer blends
… was to use $\pi$-conjugated, electronically conductive polymers as modifiers of electrodes. This research involved the chemical synthesis and electrochemical investigation of poly(3-hexthylthiophene) (P3HT).
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Conjugated Polymer Brushes (Poly(3-hexylthiophene) brushes): new electro- and photo-active molecular architectures
… the main methods for the synthesis of conjugated polymers for their suitability in the preparation of conductive polymer brushes. The main focus was put on the grafting of intrinsically soluble substituted regioregular polyalkylthiophenes because of their excellent optoelectronic properties. The …
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Design, fabrication and characterization of polypyrrole trilayer actuators
Conducting polymers are currently studied as artificial muscle materials. They are used instead of traditional actuators because they mimic the movements of animal muscles. They can generate larger active stresses than real muscles as well as generate small strains which can be amplified to cause …
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On-Metal Synthesis of Some Aryl Substituted Rhenium η<sup>5</sup> Cyclopenta[C] Pyridazyl Complexes
… derivatives have been of great interest for conductive polymers due to their novel properties and environmental stability as compared to non-aromatic analogs (e.g. polyacetylene). We are interested in synthesizing organometallic pyridazines and rhenium pyridazyl complexes for polymer …
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Inkjet printing for fabrication of organic photonics and electronics
… works in ink jet printing techniques, to pattern conductive polymers for use as electrodes with predefined shapes and controlled conductivity. Our works have been extended to explore printing with multiple inks, which mix and/or react with each other, for the use in making artificial muscles and …
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Design, Fabrication, and Analysis of Polymer-Based Microelectromechanical Systems
… tactile sensors and input devices based on conductive elastomers are presented. In order to realize these devices new methods for fabrication on polyimide substrates, photo-lithographic micro-patterning of composite polymers, large aspect ratio out of plane polymer molding, and embedding …
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Evaluation of Novel and Low-Cost Materials for Bipolar Plates in PEM Fuel Cells
… was developed for use with composite materials. Conductive fillers were mixed with a polypropylene binder and molded into single cell monopolar plates. A fuel cell test stand, capable of testing six cells simultaneously, was used for long-term corrosion testing. In-situ tests took place in 5 cm2 …
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Molecular composites of a conducting polymer: syntheses and characterization of poly(1,4-phenylenevinylene)-crown ether rotaxanes
… (PPV), one of the most promising conductive polymers, as the linear backbone and different sizes of crown ethers (42C14, 60C20) as macrocycles, molecular composites of the conducting polymer were generated To compare with the PPV rotaxanes, PPV was synthesized and characterized by …
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Synthesis and Characterization of some Thallium Salt Complexes
<p>Research into conductive organic and organometallic polymers began in 1977 when Heeger, Macdiarmid, and Shirakawa first doped polyacteylene with Iodine. They found that this doping granted the polymer metallic properties increasing conductivity by 11 orders of magnitude.[1] Unfortunately, …
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Molecular recognition of chlorine-doped polypyrrole
… biomolecule entanglement, and synthesis of new polymers with the desired functionality. The focus of this work is to modify the polymer's binding capability to cells while not altering the bulk properties. Through the use of both phage display of peptide libraries and yeast surface display of …
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Oxidative and initiated chemical vapor deposition for application to organic electronics
… for forming thin films comprised solely of conductive polymers are limited by the rigid nature of the conjugated backbone. Neither spin casting from solution nor melt processing can be used. To answer to this challenge, a solvent-free method of oxidative chemical vapor deposition (oCVD) to …
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