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Carbon Sciences Developing Breakthrough Technology to Mass-Produce Graphene -- the New Miracle Material: Company Enters Into an Agreement With the University of California, Santa Barbara (UCSB) to Fund the Further Development of a New Graphene Process
Carbon Sciences Inc. (OTCBB: CABN), the developer of a breakthrough technology to mass-produce graphene, the new miracle material, today announced that it recently entered into an agreement with the...
Nanoribbon film keeps glass ice-free: Rice University lab refines deicing film that allows radio frequencies to pass
Rice University scientists who created a deicing film for radar domes have now refined the technology to work as a transparent coating for glass.
Researchers in Japan have made the first truly one-dimensional diatomic chains inside CNTs.
Electrochromic materials exhibit reversible optical change in the visible region when they are subjected to an electric charge. These switchable materials can be used for 'smart' windows in buildings, cars and airplanes as well as in information displays and eye wear. An electrochromic device is one of the most attractive candidates for paper-like displays, so called electronic paper, which will be the next generation display, owing to attributes such as thin and flexible materials, low-power consumption, and fast switching times. Electrochromic devices (ECDs) generally consist of a structure where certain material layers, among them an electrolyte, are sandwiched together. A major limitation until now has been the necessity to use the very expensive indium tin oxide (ITO) as transparent electrodes. ITO's brittleness makes it unsuitable for flexible device applications and its fabrication process vacuum-coating, high-temperature annealing is incompatible with plastic-based substrates. "ECD structure and manufacturing is to a wide extent challenged by the electrolyte component," Frederik C. Krebs (http://www.dtu.dk/english/Service/Phonebook/Person?id=3454), a professor and head of section of Energy Conversion and Storage at the Technical University of Denmark, tells Nanowerk. "As it remains common practice to employ a semisolid adhesive gel electrolyte, fabrication of devices is limited to separately coating of the two electrodes before finalizing the device in a lamination step; a technical challenge in a simple roll-to-roll (R2R) process and an impossibility in advanced R2R processes with 2D registration requirements." In new work, reported in the September 5, 2014 online edition of Advanced Materials ("From the Bottom Up Flexible Solid State Electrochromic Devices" (http://dx.doi.org/doi:10.1002/adma.201402771)), Krebs and first author Dr. Jacob Jensen describe solid state electrochromic devices, manufactured by sequentially stacking layers in one direction using flexographic printing and slot-die coating methods. The novelty of this bottom-up printing process for electrochromic device fabrication is the use of printed grid structures in combination with printable electrolytes that can be crosslinked in such a way that many layers can be printed on top of each other. Whereas previous processes have employed the lamination of two separately prepared films, this new method provides the ability to constitute multilayer structures with functionality through printing layers consecutively on top of each other. "We show how using a specially developed 'curing chamber' mounted on a mini roll coater solid state electrochromic devices can be manufactured continuously in one direction, i.e., from the bottom and up, using slot-die coating and flexographic printing," says Krebs. "This technique eliminates the need for a lamination step and enables fully additive roll-to-roll processes." This considerably simplified process constitutes an important step towards R2R manufacturing of ECDs without having to employ brittle materials such as ITO. This new paper extends the team's previous reports on ECD manufacture such as "Fast Switching ITO Free Electrochromic Devices" (http://dx.doi.org/doi:10.1002/adfm.201302320) in Advanced Functional Materials and "Manufacture and Demonstration of Organic Photovoltaic-Powered Electrochromic Displays Using Roll Coating Methods and Printable Electrolytes" (http://dx.doi.org/doi:10.1002/polb.23038) in the Journal of Polymer Science. The ability to cheaply mass-produce ECDs will find applications ranging from light management and shading to large area/low cost displays such as billboards. Basically, it is a simple way of printing thin, very low cost and low power consumption display devices. The compromises that need to be made with this process are slow switching speed and relatively poor contrast. Both can be improved, notes Krebs, but since these devices rely on a chemical reaction taking place when changing color there are limits to the switching speed that can be reached. Krebs points out that the current version of his team's ITO- and vacuum-free grid electrodes still require further optimization to achieve the same optical transmission as the brittle ITO. Source: Nanowerk (http://www.nanowerk.com/spotlight/spotid=37388.php)
Categories: National Nanomanufacturing Network
Elusive Quantum Transformations Found Near Absolute Zero: Brookhaven Lab and Stony Brook University researchers measured the quantum fluctuations behind a novel magnetic material's ultra-cold ferromagnetic phase transition
Heat drives classical phase transitions-think solid, liquid, and gas-but much stranger things can happen when the temperature drops. If phase transitions occur at the coldest temperatures imaginable,...
'Squid skin' metamaterials project yields vivid color display: Rice lab creates RGB color display technology with aluminum nanorods
The quest to create artificial "squid skin" -- camouflaging metamaterials that can "see" colors and automatically blend into the background -- is one step closer to reality, thanks to a breakthrough c...
Dolomite to launch Meros TCU-100 temperature controller at Lab-on-a-Chip & Microarray World Congress
Microfluidics specialist Dolomite will be launching the Meros TCU-100 at this year's Lab-on-a-Chip & Microarray World Congress in San Diego, USA, from the 18th to the 19th September. The first module...
Fonon at Cutting-Edge of 3D Military Printing: Live-Combat Scenarios Could See a Decisive Advantage with 3D Printing
Fonon Technologies, the industry leader in developing high-tech fiber and CO2 laser systems for marking, cutting and engraving applications, is proud to announce its New Additive manufacturing Equipme...
Rice rolls 'neat' nanotube fibers: Rice University researchers' acid-free approach leads to strong conductive carbon threads
The very idea of fibers made of carbon nanotubes is neat, but Rice University scientists are making them neat -- literally.
Iranian materials engineering researchers synthesized nanopigments with high reflection ability through a cost-effective method.
Iranian researchers from Isfahan University of Medical Sciences studied the effects of using nanocarriers in the treatment of intra cellular infections.
Seeking Nanoscale Defenses for Biological and Chemical Threats: WPI co-organizes a NATO workshop to improve the detection and decontamination of biological and chemical agents
Advancing the front lines of research for the detection and decontamination of chemical and biological threats is the mission of an international scientific workshop organized by Worcester Polytechnic...
Fullerex (fullerex.com) has announced the release of the "Bulk Graphene Pricing Report 2014" as part of its research offering.
Berkeley Lab Licenses Boron Nitride Nanotube Technology: New material has unique mechanical and electronic properties
Nearly 20 years ago researcher Alex Zettl of the Department of Energy's Lawrence Berkeley National Laboratory (Berkeley Lab) synthesized in his lab a new material never before seen by nature: boron ni...
Oligomers interact with light more strongly than isolated, uncoupled nanoparticles thanks to multiple plasmonic “hot spots” created in each cluster.
Iranian researchers from Kashan University employed nanotechnology to increase thermal and flame resistant polymers.
PETA science consortium experts to present at international nanotechology workshop: PETA International Science Consortium, Ltd., Is a Sponsor of Nano Risk Analysis II
Experts from the PETA International Science Consortium will present strategies for optimizing nonanimal testing methods at a workshop that will examine the strengths and limitations of current alterna...
First Colloid and Polymer Science Lecture awarded to Orlin D. Velev: Chemical engineer honored for outstanding research in colloid science
The Springer journal Colloid and Polymer Science awards Orlin D. Velev from North Carolina State University (USA) the Colloid and Polymer Science Lecture 2014. The award committee chose Velev for his...
NEI Corporation and PneumatiCoat Technologies Sign Agreement to Jointly Develop and Market New Materials for Lithium-ion Batteries
NEI Corporation (NEI) and PneumatiCoat Technologies (PCT) have initiated a collaboration to develop, produce, and market coated battery materials - cathodes, anodes, and solid electrolytes. The partne...
NanoStruck has a High Recovery Rate on Mine Tailings: retrieval of up to 96% of Gold, 88% of Silver and 86% of Palladium
NanoStruck Technologies Inc. has a powerful suite of proprietary nano-biotechnology solutions that can transform even the most contaminated waters into pure, safe, and drinkable water for a fraction o...