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Plastic Electronics (plastic + electronics)

Distribution by Scientific Domains
Polymers and Materials Science100%
Distribution within Polymers and Materials Science
General & Introductory Materials Science71%
Polymer Science & Technology General28%

Selected Abstracts

Single-Molecule Spectroscopy for Plastic Electronics: Materials Analysis from the Bottom-Up

ADVANCED MATERIALS, Issue 15 2010
John M. Lupton
Abstract , -conjugated polymers find a range of applications in electronic devices. These materials are generally highly disordered in terms of chain length and chain conformation, besides being influenced by a variety of chemical and physical defects. Although this characteristic can be of benefit in certain device applications, disorder severely complicates materials analysis. Accurate analytical techniques are, however, crucial to optimising synthetic procedures and assessing overall material purity. Fortunately, single-molecule spectroscopic techniques have emerged as an unlikely but uniquely powerful approach to unraveling intrinsic material properties from the bottom up. Building on the success of such techniques in the life sciences, single-molecule spectroscopy is finding increasing applicability in materials science, effectively enabling the dissection of the bulk down to the level of the individual molecular constituent. This article reviews recent progress in single molecule spectroscopy of conjugated polymers as used in organic electronics. [source]

Plastic Electronics: The Influence of Morphology on High-Performance Polymer Field-Effect Transistors (Adv. Mater.

ADVANCED MATERIALS, Issue 2 2009
2/2009)
On p. 209, Wojciech Pisula, Klaus Müllen, and co-workers report on directionally oriented, high-performance polymer field-effect transistors for plastic electronics. The cover shows the applied alignment from solution, resulting in pronounced macroscopic ordering of the copolymer chains and finally in excellent transistor behavior, which is promising for applications in, for example, flexible displays. [source]

Facile Synthesis of Spherical Polyelectrolyte Brushes as Carriers for Conducting Polymers to be Used in Plastic Electronics

MACROMOLECULAR CHEMISTRY AND PHYSICS, Issue 18 2009
Jianjun Wang
Abstract A two-step method for the preparation of spherical polyelectrolyte brushes (SPBs) has been developed. Copolymerization of styrene and divinyl benzene at the particle surface resulted in a large number of accessible vinyl groups. These vinyl groups reacted with sodium styrene sulfonate to give SPBs. The SPBs were used as carriers for conducting polymers resulting in redispersible conducting inks with good film forming properties. Direct current (DC) conductivity of the polypyrrole (PPy) loaded samples showed a percolating behavior as probed by impedance spectroscopy. Finally, device performance of organic light-emitting diodes based on the conducting thin films assembled from the PPy loaded particles was tested. [source]

High K Capacitors and OFET Gate Dielectrics from Self-Assembled BaTiO3 and (Ba,Sr)TiO3 Nanocrystals in the Superparaelectric Limit

ADVANCED FUNCTIONAL MATERIALS, Issue 4 2010
Limin Huang
Abstract Nanodielectrics is an emerging field with applications in capacitors, gate dielectrics, energy storage, alternatives to Li-ion batteries, and frequency modulation in communications devices. Self-assembly of high k dielectric nanoparticles is a highly attractive means to produce nanostructured films with improved performance,namely dielectric tunability, low leakage, and low loss,as a function of size, composition, and structure. One of the major challenges is conversion of the nanoparticle building block into a reliable thin film device at conditions consistent with integrated device manufacturing or plastic electronics. Here, the development of BaTiO3 and (Ba,Sr)TiO3 superparaelectric uniform nanocrystal (8,12,nm) films prepared at room temperature by evaporative driven assembly with no annealing step is reported. Thin film inorganic and polymer composite capacitors show dielectric constants in the tunable range of 10,30, dependent on composition, and are confirmed to be superparaelectric. Organic thin film transistor (TFT) devices on flexible substrates demonstrate the readiness of nanoparticle-assembled films as gate dielectrics in device fabrication. [source]

Hydrophilic Sparse Ionic Monolayer-Protected Metal Nanoparticles: Highly Concentrated Nano-Au and Nano-Ag "Inks" that can be Sintered to Near-Bulk Conductivity at 150,°C

ADVANCED FUNCTIONAL MATERIALS, Issue 2 2010
Bibin T. Anto
Here, monolayer-protected gold and silver nanoparticles with extremely high solvent dispersibility (over 200,mg mL,1 in water and glycols) and low coalescence temperature (approximately 150,°C, measured by the percolation transition temperature Tp) are developed, to reach conductivities better than 1,×,105,S cm,1. These materials are suitable for inkjet and other forms of printing on substrates that may be solvent- and/or temperature-sensitive, such as for plastic electronics, and as bus lines for solar and lighting panels. This is achieved using a new concept of the sparse ionic protection monolayer. The metal nanoparticles are initially protected by a two-component mixed ligand shell comprising an ,-functionalized ionic ligand and a labile ligand. These are selectively desorbed to give a sparse shell of the ,-ionic ligands of ca. 25% coverage. Through a systematic study of different monolayer-protected Au nanoparticles using FTIR spectroscopy, supported by XPS and DSC, it is shown that Tp is not determined by thermodynamic size melting or by surface area effects, as previously thought, but by the temperature when ca. 80% of the dense monolayer is eliminated. Therefore, Tp depends on the thermal stability and packing density of the shell, rather than the size of the metal core, while the solubility characteristics depend strongly on the exposed terminal group. [source]

Plastic Electronics: The Influence of Morphology on High-Performance Polymer Field-Effect Transistors (Adv. Mater.

ADVANCED MATERIALS, Issue 2 2009
2/2009)
On p. 209, Wojciech Pisula, Klaus Müllen, and co-workers report on directionally oriented, high-performance polymer field-effect transistors for plastic electronics. The cover shows the applied alignment from solution, resulting in pronounced macroscopic ordering of the copolymer chains and finally in excellent transistor behavior, which is promising for applications in, for example, flexible displays. [source]

Printed plastic electronics and paperlike displays

JOURNAL OF POLYMER SCIENCE (IN TWO SECTIONS), Issue 20 2002
John A. Rogers
Abstract Plastic electronic materials and high-resolution printing methods may be important technologies for new classes of consumer electronic devices that are lightweight, mechanically flexible and bendable, and that can cover large areas at low cost. This article summarizes some of our recent work in this area. It focuses on the materials and patterning techniques that we used to produce plastic active-matrix backplane circuits for a type of paperlike display. © 2002 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 40: 3327,3334, 2002 [source]