For his work on thin film and plasma technologies Fan was named researcher of the year for the Jerome J. Lohr College of Engineering.
Since last fall Fan has been collaborating with Wintek on ways of producing more efficient better performing materials such as silicon and carbon thin films for the company's displays.
The high-energy plasma can deposit highly transparent and conductive thin films create high quality semiconductors and pattern micro-or nanoscale devices thus making the display images brighter and clearer.
#New way to move atomically thin semiconductors for use in flexible devices Researchers from North carolina State university have developed a new way to transfer thin semiconductor films
and can perfectly transfer the atomic scale thin films from one substrate to others without causing any cracks.
At issue are molybdenum sulfide (Mos2) thin films that are only one atom thick first developed by Dr. Linyou Cao an assistant professor of materials science and engineering at NC State.
The ultimate goal is to use these atomic-layer semiconducting thin films to create devices that are extremely flexible
but to do that we need to transfer the thin films from the substrate we used to make it to a flexible substrate says Cao who is senior author of a paper on the new transfer technique.
You can't make the thin film on a flexible substrate because flexible substrates can't withstand the high temperatures you need to make the thin film.
Cao's team makes Mos2 films that are an atom thick and up to 5 centimeters in diameter.
The researchers needed to find a way to move that thin film without wrinkling or cracking it
which is challenging due to the film's extreme delicacy. To put that challenge in perspective an atom-thick thin film that is 5 centimeters wide is equivalent to a piece of paper that is as wide as a large city Cao said.
Our goal is to transfer that big thin paper from one city to another without causing any damage or wrinkles.
Existing techniques for transferring such thin films from a substrate rely on a process called chemical etching
or contaminate the film. Cao's team has developed a technique that takes advantage of the Mos2's physical properties to transfer the thin film using only room-temperature water a tissue and a pair of tweezers.
Mos2 is hydrophobic-it repels water. But the sapphire substrate the thin film is grown on is hydrophilic-it attracts water.
Cao's new transfer technique works by applying a drop of water to the thin film
and then poking the edge of the film with tweezers or a scalpel so that the water can begin to penetrate between the Mos2 and the sapphire.
Once it has begun to penetrate the water pushes into the gap floating the thin film on top.
The researchers use a tissue to soak up the water and then lift the thin film with tweezers and place it on a flexible substrate.
The whole process takes a couple of minutes. Chemical etching takes hours. The water breaks the adhesion between the substrate
and the thin film-but it's important to remove the water before moving the film Cao says.
Otherwise capillary action would case the film to buckle or fold when you pick it up.
Coauthor Eleanor Gillette's modeling shows that the unique design of the nanopore battery is responsible for its success. The space inside the holes is so small that the space they take up all added together would be no more than a grain of sand.
These semiconducting nanowires could also replace thin films that cover today's solar panels. Current panels can process only 20 percent of the solar energy they take in.
#Dual-purpose film for energy storage hydrogen catalysis: Chemists gain edge in next-gen energy Rice university scientists who want to gain an edge in energy production
Tour and his colleagues have found a cost-effective way to create flexible films of the material that maximize the amount of exposed edge
The new film was created by Tour and lead authors Yang Yang a postdoctoral researcher; Huilong Fei a graduate student;
First they grew a porous molybdenum oxide film onto a molybdenum substrate through room-temperature anodization an electrochemical process with many uses
The film was exposed then to sulfur vapor at 300 degrees Celsius (572 degrees Fahrenheit) for one hour.
The films can also serve as supercapacitors which store energy quickly as static charge and release it in a burst.
The Rice lab built supercapacitors with the films; in tests they retained 90 percent of their capacity after 10000 charge-discharge cycles and 83 percent after 20000 cycles.
http://arxiv. org/ftp/arxiv/papers/1407/1407.1359. pdfabstractwe have investigated thermal conductivity of graphene laminate films deposited on polyethylene terephthalate substrates.
Coating plastic materials with thin graphene laminate films that have up to 600 higher thermal conductivity than plastics may have important practical implications s
These new and fundamental insights may help engineers develop superior battery chemistries or nanoscale architectures that block this degradation.
and architecture of NCA batteries including the surprising atomic asymmetries and suggests new ways to enhance durability including the use of nanoscale coatings that reinforce stable structures.
depositing thin films of a uniquely designed polymer on a template so that it self-assembles into neat, precise, even rows of alternating composition just 10 or so nanometers wide.
the BCPS in question will form a thin film in a pattern of narrow, alternating stripes of the two polymer compositions.
but down inside the film, it isn't."Kline's group, working with IBM, demonstrated a new measurement technique*that uses low energy
or"soft"X rays produced by the Advanced Light source at Lawrence Berkeley National Labs to probe the structure of the BCP film from multiple angles.
Because the film has a regular repeating structure, the scattering pattern can be interpreted, much as crystallographers do,
to reveal the average shapes of the stripes in the film. If a poor match between the materials causes one set of stripes to broaden out at the base, for example,
**While X-ray scattering can measure average properties of the films, Liddle's group, working with MIT, developed a method to look, in detail,
at individual sections of a film by doing three-dimensional tomography with a transmission electron microscope (TEM).*
and then MWCNT@S and VACNTS were assembled into macro-CNT-S films via the dispersion in ethanol followed by vacuum filtration",Zhe Yuan,
and developed it into a technique to assemble graphene into porous 3d architectures while preventing stacking between the sheets.
Furthermore the process is easily scalable for creating large-area films which will be highly useful as electrodes and membranes for energy generation or storage.
and uniformly thin films the flat-plane emission device has the potential to provide a new approach to lighting in people's life style
To control the nanotubes'growth the researchers first cover the emitter array with an ultrathin catalyst film
"We coated these crystals with a thin metal film, heated the surface with a laser beam,
has taken a major step in developing long-sought polymer architecture to boost power-conversion efficiency of light to electricity for use in electronic devices.
what the field considers the'Holy grail'architecture for harvesting light and converting it to electricity.
We report here that we have developed at last the ideal architecture composed of organic single-crystal vertical nanopillars.
Briseno says The biggest challenge in producing this architecture was finding the appropriate substrate that would enable the molecules to stack vertically.
because charge separation/collection is most efficient perpendicular to the plastic device. In this case our nanopillars highly resemble nanograss.
Project leader Dr Sharath Sriram, co-leader of the RMIT Functional Materials and Microsystems Research Group, said the nanometer-thin stacked structure was created using thin film, a functional oxide
"The thin film is designed specifically to have defects in its chemistry to demonstrate a'memristive'effect where the memory element's behaviour is dependent on its past experiences,
and architectures for creating the next generation of nonvolatile memory.""The structure we developed could be used for a range of electronic applications from ultrafast memory devices that can be shrunk down to a few nanometers,
to computer logic architectures that replicate the versatility and response time of a biological neural network.""While more investigation needs to be done,
The material is made from a collection of nanocavities and you can tune the absorption just by changing the size of the nanocavities Chou says.
and colleagues from the RIKEN Center for Emergent Matter Science the University of Tokyo and Hiroshima University have discovered that ultrathin films of a semiconducting material have properties that form the basis for a new kind of low-power electronics
Iwasa and his team created films consisting of one to four atomic layers of molybdenum disulfide.
Most previous studies of this material focused on films in which each layer is the mirror image of the one below.
Instead the atoms in each molybdenum disulfide layer in the films created by Iwasa's team were shifted slightly from those in the two-dimensional level beneath (Fig. 1). This breaking of the film's symmetry meant that the researchers were also able to harness the spin of electrons.
The observed relationship between the termination chemistry and the dislocation structure of the interface offers potential avenues for tailoring transport properties
since 2001 and our technology has achieved now the fabrication of large area(>1000 mm2) ultra-thin films only a few atoms thick.
Our ability to not only synthesise large uniform thin films but also to transfer these films to virtually any substrate has led to increased demand for our materials.
We welcome enquiries from universities and industry who wish to collaborate with us. Explore further:
Team refines deicing film that allows radio frequencies to pass Rice university scientists who created a deicing film for radar domes have refined now the technology to work as a transparent coating for glass.
Last year the Rice group created films of overlapping nanoribbons and polyurethane paint to melt ice on sensitive military radar domes
That caused degradation of the film. Those spots got so hot that they burned up.
The answer was to make the films more consistent. The new films are between 50 and 200 nanometers thick a human hair is about 50000 nanometers thick
and retain their ability to heat when a voltage is applied. The researchers were also able to preserve their transparency.
The films are still useful for deicing applications but can be used to coat glass and plastic as well as radar domes and antennas.
One can now think of using these films in automobile glass as an invisible deicer and even in skyscrapers Tour said.
He said nanoribbon films also open a path toward embedding electronic circuits in glass that are both optically and RF transparent a
The researchers'familiarity with thin films and ionic transport enabled them to exploit chemistry, rather than temperature,
Scanning tunneling microscopy/spectroscopy of picene thin films formed on Ag (111) by Yasuo Yoshida Hung-Hsiang Yang Hsu-Sheng Huang Shu-You Guan Susumu Yanagisawa Takuya
The key issue for the fabrication of the novel N-ACNT/G architecture is that the high-quality aligned CNTS
The remarkable cycling capacity and rate capability can be attributed to the novel structural and chemical characteristics of the N-ACNT/G sandwiches Prof.
leaving a hollow architecture. The applications of this technique are practically limitless, Greer says. Since pretty much any material can be deposited on the scaffolds,
In a newly published article in the journal ACS Advanced Materials & Interfaces, researchers Ravi Saraf and Chieu Van Nguyen describe a thin-film sensor that can detect tumors too small and deep
In research funded with a grant from the National institutes of health, Saraf and Nguyen perfected a thin film made of nanoparticles and polymers
The film, just one-60th the thickness of a human hair, is a sort of"electronic skin"able to sense texture and relative stiffness.
the researchers ued the film to successfully detect tumors as small as 5 millimeters, hidden up to 20 millimeters deep.
The film is easy to manufacture using readily available industrial processes and remains stable for months,
Saraf said the thin-film tool would have at least three advantages to a manual breast exam performed by a physician:
Yet if the film is too sensitive, it would create a saturated image and prevent visualization of a deeper embedded mass a
but aware of the extensive literature saying that the oxidizing agent was required, Kovtyukhova balked.""I kept asking her to try it
Graphene is more flexible than conventional ceramic alternatives like indium-tin oxide (ITO) and more transparent than metal films.
The new 150 pixel per inch (150 ppi) backplane was made at low temperatures (less than 100°C) using Plastic Logic's Organic Thin Film Transistor (OTFT) technology.
and carrier concentrations with an accurate nanoscale picture of the semiconductor film's microstructure really gives a complete picture of how the device operates and
The University of Washington researchers have demonstrated that two of these single-layer semiconductor materials can be connected in an atomically seamless fashion known as a heterojunction.
and MX2 semiconductors provide an ideal way to spatially separate electrons and holes for electrical collection and utilization."
Two-dimensional aluminum (Al) nanofiber networks offering transparent conductors were fabricated by simple wet chemical etching of Al metalized polymer films using an electrospun polystyrene nanofiber mask template.
whereas anodes with an imperfect graphene layer rapidly decrease with cycling. The large size of the graphene plays a key role in the performance
because a larger size provides a higher cycling stability of the nanosized anode materials by improving their mechanical integrity.
But Moh El-Naggar assistant professor at the USC Dornsife College of Letters Arts and Sciences says he was always careful to avoid saying that he knew for sure that's what they were.
like chants from at football ground, could become a reality, according to a new collaboration between scientists from Queen Mary University of London and Nokia.
The method uses biodegradable nanoscale thin films laden with drug molecules that are absorbed into the body in an incremental process.
Now we're looking at a way of creating an extremely thin film or coating that's very dense with a drug and yet releases at a constant rate for very long time periods.
which significantly exceeds the release duration achieved by most commercial controlled-release biodegradable films. You can potentially implant it
which drug molecules are attached effectively to layers of thin-film coating. In this specific case the researchers used diclofenac a nonsteroidal anti-inflammatory drug that is often prescribed for osteoarthritis and other pain or inflammatory conditions.
The film can be applied onto degradable nanoparticles for injection into local sites or used to coat permanent devices such as orthopedic implants.
Indeed other researchers who have looked at the paper say the potential medical versatility of the thin-film technique is of considerable interest.
"In addition, this approach can be transferred easily to silicon thin films to develop thin-film siliconolymer hybrid solar cells with even higher efficiency. e
It is a method of manufacturing graphene on the board of metal film that serves as a catalyst.
For example, experiments have shown that film made of packed nanowires has properties that differ quite a bit from a crystal thin film."
"One application the group is now exploring is a thin film solar cell, made of densely packed nanowires,
"In our technology, two diamond anvils were used to sandwich nanoparticulate thin films. This external stress manually induced transitions in the film that synthesized new materials,
"he said. The pressure, delivered by two diamond plates tightened by four screws to any controlled setting, shepherds silver nanospheres into any desired volume.
Any industry that has embossing equipment could lay a film of silver on a piece of paper
For practical applications these nanocarriers are highly desirable explains Francisco Raymo professor of chemistry in the University of Miami College of Arts and Sciences and lead investigator of this project.
Subramani Swaminathan and Janet Cusido from the UM's Laboratory for Molecular Photonics Department of chemistry in the College of Arts and Sciences;
and cactus thorn showed the confined water collection on these one dimensional nanostructures was helpful in solving the shortage of freshwater resources.
Notably the presence of minor components of Si and P in the original L-BIOX nanometric particles resulted in specific and well-defined electrode architecture.
The researchers made a thin film of graphene oxide by chemically exfoliating graphite into graphene flakes,
it becomes a large-area transparent film that can be lifted carefully off without tearing. The film is then cut into narrow strips
and wound on itself with an automatic fiber scroller, resulting in a fiber that can be knotted
Istvan Robel another CASP member added Our modeling indicates that when the shell is thick enough the higher energy hole states lay primarily in the shell
and Jialu Zhang developed this energy-efficient circuit by integrating carbon nanotube (CNT) thin film transistors (TFT) with thin film transistors comprised of indium, gallium and zinc oxide (IGZO)."
This hybridization of carbon nanotube thin films and IGZO thin films was achieved by combining their types, p-type and n-type, respectively,
#DNA-linked nanoparticles form switchable'thin films'on a liquid surface Scientists seeking ways to engineer the assembly of tiny particles measuring just billionths of a meter have achieved a new firsthe
Understanding the assembly of such nanostructured thin films could lead to the design of new kinds of filters or membranes with a variable mechanical response for a wide range of applications.
and how that process affects the properties of a"thin film"made of DNA-linked nanoparticles,
and assemble in a variety of three-dimensional architectures. The goal of the present study was to see
if the same approach could be used to achieve designs of two-dimensional, one-particle-thick films."
any object larger than the mesh-size of the network cannot penetrate through this very thin film.""
#Charging portable electronics in 10 minutes Researchers at the University of California Riverside Bourns College of Engineering have developed a three-dimensional silicon-decorated cone-shaped carbon nanotube cluster architecture for lithium ion battery anodes that could enable charging of portable
carbon nanotube clusters architecture via chemical vapor deposition and inductively coupled plasma treatment. Lithium ion batteries based on this novel architecture demonstrate a high reversible capacity and excellent cycling stability.
The architecture demonstrates excellent electrochemical stability and irreversibility even at high charge and discharge rates nearly 16 times faster than conventionally used graphite based anodes.
The researchers believe the ultrafast rate of charge and discharge can be attributed to two reasons said Wei Wang lead author of the paper.
Two the cone-shaped architecture offers small interpenetrating channels for faster electrolyte access into the electrode
But improved performance is just a start for this new quantum dot-based solar cell architecture. The powerful little dots could be mixed into inks
"These two pronounced factors drive the need to substitute ITO with a cost-effective and flexible conductive transparent film,
adding that the new film provides the same degree of transparency as ITO, yet offers greater conductivity.
The novel film retains its shape and functionality after tests in which it has been bent 1, 000 times.
"We expect this film to emerge on the market as a true ITO competitor, "Zhu says."
which organises metal nanoparticles into alternating layers in thin gel films to produce the sensors in a matter of seconds.
what was needed for this solar fuel generator application Deposited as a film ranging in thickness between 4 and 143 nanometers the Tio2 remained optically transparent on the semiconductor crystalsllowing them to absorb lightnd protected them from corrosion
if applied using an inexpensive less-controlled application technique such as painting or spraying the Tio2 onto a semiconductor.
This allows those charges to be collected at the edge of the film where they can be harnessed to provide an electric current.
Arthur Nozik a research professor in chemistry at the University of Colorado who was involved not in this research says This result represents a significant advance for the applications of quantum dot films and the technology of low-temperature solution-processed quantum dot photovoltaic cells.#
Received 06 december 2013 Accepted 15 april 2014 Published online 25 may 2014energy Level Modification in Lead Sulfide Quantum dot Thin Films Through Ligand Exchange.
Thin film transistors are a particular subset of these that are used typically in screens and displays.
Virtually all flat-screen TVS and smartphones are made up of thin film transistors today; they form the basis of both LEDS and LCDS (liquid crystal displays."
"The team also tried bending the films to test what happens under stress. In most thin film transistors, the material starts to crack, which,
Next, the team is interested in adding logic and memory to flexible films, so you could make not just a screen but an entire flexible and transparent TV or computer."
all fit into a complex enzyme pocket just like a baseball into a glove. Once all the chemical parts have found their place in the pocket
All of a sudden, the ability to design technologies at the basis of health, entertainment, travel and social communication will not be limited by plugs and external power sources,
However Pint pointed out that there have not been any reports in the technical literature of tests performed on structural energy storage materials that show how they function under realistic mechanical loads l
The paper,"Stable Cycling of Sio2 Nanotubes as High-performance Anodes for Lithium-Ion Batteries,"was published online in the journal Nature Scientific Reports.
This research involved silicalite-1 a synthetic aluminum-free zeolite that has served as a prototype in literature for studying zeolite growth.
This photoinduced solidification process forms one layer of solid structure at a time but in a continuous fashion.
This one packs an interconnected network of graphene and carbon nanotubes so tightly that it stores energy comparable to some thin-film lithium batteriesn area where batteries have held traditionally a large advantage.
"Such a laser patternable highly nonlinear thin film, about one hundredth of a human hair, has not been achieved by any other material,
To create the thin film the researchers spin coated graphene oxide solution to a glass surface.
Using a laser as a pen they created microstructures on the graphene oxide film to tune the nonlinearity of the material."
"Now we can provide a film, on which everything can be fabricated with laser and then it is automatically integratable."
#'3-D Painting'Sprays Metal To Repair Or Rebuild Machines Video#GE is showing off a new machine that sprays high-velocity metal powders at broken machines repairing damage in a few
or 3-D painting#(you know like printing) could also be used to make entirely new parts.
But it's designed by a former designer for the Vera Wang Collection and definitely looks better than a shirt with an orange juice accent stain.
Even the minimalist#Printrbot Simple retails at $299.##He told euronews My dream is to give young people hope
Add it to your local bowling ally/mini-golf place/paintball place. I agree with Bagpipes
I want craft that can support bases on the Moon flag planting ceremonies on Mars Europa and Titan.
#U k. Supermarket Lets You 3-D Scan And Print Yourself In store Add this one to your grocery list.
A supermarket chain in the U k. is offering a new service that lets customers scan objects
For this species skipping a year of data collection â##would be something from which there s almost no recoveryâ#he says. â##We would miss a group of first year breeders or young birds
They do detect silhouettes though. These surfers are mostly going to be using surfboards too. Those give off a serious silhouette.
The same kind of shadow that things sharks eat give off. The shark sees the shadow moves in closer smells mammal
It was called The Island a sci-fi film. Anyhow there are other ways to immortality then what you described.
She is a professional artist who has been teaching painting for over 20 years and she has a number of students who are colorblind.
Key to the boats is named a program Control Architecture for Robotic Agent Command and Sensing or CARACAS.
#Once#good cartilage products become available microfracture could become obsolete says Charles Roth of the Andrews Institute for Orthopaedics and Sports Medicine.
A widely used ingredient in processed foods palm oil has become a lucrative industry that is helping millions escape poverty.
it now stands as the largest collection of open-source hardware on the planet. Nothing on the site is patented
That's about as big around as the Astrodome and Cowboys Stadium combined--and 14 times larger than the iconic stone circle.
#The Helmet That Could Change Football For decades football players have worn rigid unyielding helmets that protected the skull
At a time when the sport has been hammered with bad news this#might be a game changer. At the crown of the helmet a flexible panel that has a polycarbonate shell attaches with a living hinge.
As a bonus the app guesses the person's age and gender. Evaluating whether you want to hit on that person is still up to you.
It would certainly behoove a customer service robot for example to be able to sense frustration and confusion in people's faces.
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