Additionally, the emergence of green technology markets-such as hybrid and electric vehicles, direct drive wind turbine power systems and energy storage systems-have created an increased demand for permanent magnets.
Light can transmit more data while consuming far less power than electricity, and an engineering feat brings optical data transport closer to replacing wires May 29th,
These new phenomena rely on the transport of thermal energy, in contrast to the conventional application of magnetic fields, providing a new,
or provide electrical power.""""We use the spin current created by ultrafast heat conduction to generate spin transfer torque.
2015stable Perovskite Solar cells Developed through Structural Simplification June 9th, 2015materials/Metamaterials Mesoporous Particles for the Development of Drug Delivery System Safe to Human bodies June 9th,
2015stable Perovskite Solar cells Developed through Structural Simplification June 9th, 2015interviews/Book reviews/Essays/Reports/Podcasts/Journals/White papers A step towards a type 1 diabetes vaccine by using nanotherapy June 10th,
and in the conversion of chemical energy into electrical energy and vice versa. One of the most important research questions in Rupp's field currently is how to optimise these materials,
Shi attached microelectrodes to small pieces of these membranes to create tiny components that can be used to generate electricity from hydrogen or organic compounds and from oxygen in the air.
"##About DOE/Lawrence Berkeley National Laboratorylawrence Berkeley National Laboratory addresses the world's most urgent scientific challenges by advancing sustainable energy,
Method could be useful in developing green energy and a better understanding of rust June 18th, 2015news and information Scientists film shock waves in diamond:
Method could be useful in developing green energy and a better understanding of rust June 18th, 2015registration in 8th Int'l Iran Nano Expo 2015 Starts June 18th, 2015chemistry $8
Method could be useful in developing green energy and a better understanding of rust June 18th, 2015new Sensors Measure Blood Anticoagulation Drug June 17th,
Method could be useful in developing green energy and a better understanding of rust June 18th, 2015registration in 8th Int'l Iran Nano Expo 2015 Starts June 18th, 2015interviews/Book reviews
Method could be useful in developing green energy and a better understanding of rust June 18th, 2015new Sensors Measure Blood Anticoagulation Drug June 17th,
Method could be useful in developing green energy and a better understanding of rust June 18th, 2015graphene heat-transfer riddle unraveled June 17th, 201 0
"The results--published online June 23 in the journal Nature Communications--could transform the manufacture of high-tech coatings for anti-reflective surfaces, improved solar cells,
"For example, a single layer of platinum nanowires conducts electricity in only one direction, but a two-layer mesh conducts uniformly in all directions."
"Quantum dots, which have use in diverse applications such as medical imaging, lighting, display technologies, solar cells, photocatalysts, renewable energy and optoelectronics, are typically expensive and complicated to manufacture.
In particular, current chemical synthesis methods use high temperatures and toxic solvents, which make environmental remediation expensive and challenging.
"At just one atom thick, graphene is the thinnest substance capable of conducting electricity. It is very flexible
transparent material able to conduct electricity. The same team have discovered recently that Graphexeter is also more stable than many transparent conductors commonly used by, for example, the display industry.
and solar panels, can be printed on plastic or paper substrates, but these substrates tend to be rigid or hard.
The industrial and usual application of zinc oxide nanoparticles is in rubber industry due to its isolation against electricity
To prove the efficacy of this new mosquito-sized reaction chamber--called a micro-reactor--the scientists tracked the performance of a platinum catalyst during the conversion of ethylene to ethane, a model reaction relevant to many industrial synthesis processes.
low-pressure vacuum--but the micro-reactor allowed the TEM to operate in the presence of an atmosphere of reactive gases."
"But with the micro-reactor, some signals were too small to detect. Particles smaller than a single nanometer were hidden behind
and deposits energy as it passes through the micro-reactor. The sample then emits secondary x-rays,
"Versatile micro-reactor The new micro-reactor was designed specifically and built to work seamlessly with both synchrotron x-rays and electron microscopes."
"Brighter, faster experiments The collaboration has extended already this operando micro-reactor approach to incorporate two additional techniques--infrared
but other new micro-reactors can operate at up to 800 degrees Celsius--more than hot enough for most catalytic reactions
In the near future, this same micro-reactor approach will be used to explore other crucial energy frontiers,
PEMFC as an optimal solution for the future energy economypolymer electrolyte membrane or proton exchange membrane fuel cell (PEMFC), where chemical energy is converted directly to electrical energy,
and ability to use fuels from renewable sources are several reason why fuel cells such as PEMFC have attracted attention for large market applications,
2). Fuel cells generate electricity by combining hydrogen gas with oxygen to produce water (figure 1). Although that sounds perfectly clean and green,
Phase diagramm between 2 and 900 Kelvin Using neutron scattering experiments at the BER II research reactor,
since the kinetic energy of the atoms still suppresses the Jahn-Teller effect and magnetic ordering cannot become established.
It's an advance that could have huge implications for everything from photography to solar power.
meaning it can gather a lot of light energy, and then scatters the light over a very large area,
this one very small optical device can receive light energy from all around and yield a surprisingly strong output.
Given the nanoresonator's capacity to absorb large amounts of light energy, the technology also has potential in applications that harvest the sun's energy with high efficiency.
In addition, Yu envisions simply letting the resonator emit that energy in the form of infrared light toward the sky,
and could enable new technologies in light sensing and solar energy conversion, "Yu says s
#Better memory with faster lasers DVDS and Blu-ray disks contain so-called phase-change materials that morph from one atomic state to another after being struck with pulses of laser light, with data"recorded"in those two atomic states.
or distorting the wavefront--analogous to the quantum tunneling effect, in which a particle crosses through a potential energy barrier otherwise insurmountable by classical mechanics.
2015nanocrystalline Thin-film Solar cells July 15th, 2015better memory with faster lasers July 14th, 2015cancer Nanospheres shield chemo drugs,
2015nanocrystalline Thin-film Solar cells July 15th, 2015better memory with faster lasers July 14th, 2015polymer mold makes perfect silicon nanostructures July 14th,
2015nanocrystalline Thin-film Solar cells July 15th, 2015polymer mold makes perfect silicon nanostructures July 14th, 2015interviews/Book reviews/Essays/Reports/Podcasts/Journals/White papers For faster,
2015grants/Awards/Scholarships/Gifts/Contests/Honors/Records Nanocrystalline Thin-film Solar cells July 15th, 2015better memory with faster lasers July 14th, 2015simpore, Uofr,
Eindhoven researchers make important step towards a solar cell that generates hydrogen A solar cell that produces fuel rather than electricity.
The material gallium phosphide enables their solar cell to produce the clean fuel hydrogen gas from liquid water.
The electricity produced by a solar cell can be used to set off chemical reactions. If this generates a fuel
One of the possibilities is to split liquid water using the electricity that is generated (electrolysis.
Solar fuel cell To connect an existing silicon solar cell to a battery that splits the water may well be an efficient solution now
when it is a large flat surface as used in Gap solar cells. The researchers have overcome this problem by making a grid of very small Gap nanowires, measuring five hundred nanometers (a millionth of a millimeter) long and ninety nanometers thick.
which you can temporarily store your solar energy. In short, for a solar fuels future we cannot ignore gallium phosphide any longer
and lead to faster transistors, cheaper solar cells, new types of sensors and more efficient bioelectric sensory devices.
and it can conduct electricity as well as copper, carrying electrons with almost no resistance even at room temperature, a property known as ballistic transport.
#Rice university finding could lead to cheap, efficient metal-based solar cells: Plasmonics study suggests how to maximize production of'hot electrons'Abstract:
and reduce the costs of photovoltaic solar cells. Although the domestic solar-energy industry grew by 34 percent in 2014,
if the U s. is to meet its national goal of reducing the cost of solar electricity to 6 cents per kilowatt-hour.
LANP graduate student Bob Zheng and postdoctoral research associate Alejandro Manjavacas created a methodology that solar engineers can use to determine the electricity-producing potential for any arrangement of metallic nanoparticles.
Today's most efficient photovoltaic cells use a combination of semiconductors that are made from rare and expensive elements like gallium and indium.
"The efficiency of semiconductor-based solar cells can never be extended in this way because of the inherent optical properties of the semiconductors."
and shows that they can be useful for converting sunlight into usable electricity.""Additional co-authors include Hangqi Zhao and Michael Mcclain, both of Rice.
Jeffrey Gordon of the Alexandre Yersin Department of Solar energy and Environmental Physics at the Jacob Blaustein Institutes for Desert Research and Prof.
Daniel Feuermann and Jeffrey Gordon) that reconstitutes the immense brightness within the plasma of high-power xenon discharge lamps at a remote reactor,
#Reshaping the solar spectrum to turn light to electricity: UC Riverside researchers find a way to use the infrared region of the sun's spectrum to make solar cells more efficient A huge gain in this direction has now been made by a team of chemists at the University of California,
Riverside that has found an ingenious way to make solar energy conversion more efficient. The researchers report in Nano Letters that by combining inorganic semiconductor nanocrystals with organic molecules, they have succeeded in"upconverting"photons in the visible and near-infrared regions of the solar spectrum."
"The infrared region of the solar spectrum passes right through the photovoltaic materials that make up today's solar cells,
"explained Christopher Bardeen, a professor of chemistry. The research was a collaborative effort between him
"This is energy lost, no matter how good your solar cell. The hybrid material we have come up with first captures two infrared photons that would normally pass right through a solar cell without being converted to electricity,
then adds their energies together to make one higher energy photon. This upconverted photon is absorbed readily by photovoltaic cells,
generating electricity from light that normally would be wasted.""Bardeen added that these materials are essentially"reshaping the solar spectrum
"so that it better matches the photovoltaic materials used today in solar cells. The ability to utilize the infrared portion of the solar spectrum could boost solar photovoltaic efficiencies by 30 percent or more.
In their experiments, Bardeen and Tang worked with cadmium selenide and lead selenide semiconductor nanocrystals.
"This 550--nanometer light can be absorbed by any solar cell material, "Bardeen said.""The key to this research is the hybrid composite material--combining inorganic semiconductor nanoparticles with organic compounds.
"Besides solar energy, the ability to upconvert two low energy photons into one high energy photon has potential applications in biological imaging, data storage and organic light-emitting diodes.
"The ability to move light energy from one wavelength to another, more useful region, for example, from red to blue, can impact any technology that involves photons as inputs or outputs,
and industries, including laser, solar cells, production of transistors and nanomedicine. The colloid form of these particles have very interesting properties and characteristics,
The need for efficient, high-performance materials for electrical energy storage has been growing along with the ever-increasing demand for electrical energy in mobile applications.
Graphene ink with binders usually conducts electricity better than binder-free ink, but only after the binder material,
and graphene's electrical conductivity most likely contributed to the scaffold's biological success."Cells conduct electricity inherently--especially neurons,
This research has the potential to catapult sustainable energy-efficient materials in a very wide range of applications
Detecting excitons in metals could provide clues on how light is converted into electrical and chemical energy in solar cells and plants.
which adds ink that conducts electricity within the aerogel. You can coat the entire surface within."
#Engineers develop state-by-state plan to convert US to 100 percent renewable energy (Nanowerk News) One potential way to combat ongoing climate change,
create jobs and stabilize energy prices involves converting the world's entire energy infrastructure to run on clean, renewable energy.
if all fuel usage were replaced with electricity. This is a significantly challenging step-it assumes that all the cars on the road become electric,
but the bulk is the result of replacing current sources and uses of combustion energy with electricity."
The researchers focused on meeting each state's new power demands using only the renewable energies-wind, solar, geothermal, hydroelectric,
and how many south-facing, non-shaded rooftops could accommodate solar panels. They developed and consulted wind maps
and determined whether local offshore wind turbines were an option. Geothermal energy was available at a reasonable cost for only 13 states.
The plan calls for virtually no new hydroelectric dams but does account for energy gains from improving the efficiency of existing dams.
as they already generate nearly 30 percent of their electricity from wind power. California, which was the focus of Jacobson's second single-state roadmap to renewables after New york,
The plan calls for no more than 0. 5 percent of any state's land to be covered in solar panels or wind turbines.
Nanoparticles can act as catalysts to help convert methanol to electricity in fuel cells. NIST's 40-minute process for making nano-raspberries, described in a new paper,*has several advantages.
Metals conduct electricity and heat very well, and they're very robust. Therefore, 3d printing in metals would allow manufacturing of entirely new devices and components,
#Hematite're-growth'smoothes rough edges for clean energy harvest (Nanowerk News) Finding an efficient solar water splitting method to mine electron-rich hydrogen for clean
a team of researchers led by Boston College chemist Dunwei Wang achieved'unassisted'water splitting using the abundant rust-like mineral and silicon to capture and store solar energy within hydrogen gas.
whose research focuses on discovering new methods to generate clean energy.''This unassisted water splitting, which is very rare,
'Getting there will contribute to a sustainable future powered by renewable energy.''The team, which included researchers from Boston College, UC Berkeley and China's University of Science and Technology, decided to focus on hematite's surface imperfections,
the central process behind using artificial photosynthesis to capture and store solar energy in hydrogen gas.
#First solar cell made of highly ordered molecular frameworks (Nanowerk News) Researchers at KIT have developed a material suited for photovoltaics.
For the first time, a functioning organic solar cell consisting of a single component has been produced on the basis of metal-organic framework compounds (MOFS.
"Organic solar cells made of metal-organic frameworks are highly efficient in producing charge carriers. Figure: Wll/KIT) We have opened the door to a new room,
suggest that the excellent properties of the solar cell result from an additional mechanism the formation of indirect band gaps that plays an important role in photovoltaics.
Nature uses porphyrines as universal molecules e g. in hemoglobin and chlorophyll, where these organic dyes convert light into chemical energy.
A metal-organic solar cell produced on the basis of this novel porphyrine-MOF is presented now by the researchers in the journal Angewandte Chemie (Applied Chemistry.
The clou is that we just need a single organic molecule in the solar cell, Wll says.
Thanks to their mechanical properties, MOF thin films of a few hundred nanometers in thickness can be used for flexible solar cells or for the coating of clothing material or deformable components.
While the demand for technical systems converting sunlight into electricity is increasing, organic materials represent a highly interesting alternative to silicon that has to be processed at high costs before it can be used for the photoactive layer of a solar cell l
#Chemists devise technology that could transform solar energy storage (Nanowerk News) The materials in most of todays residential rooftop solar panels can store energy from the sun for only a few microseconds at a time.
A new technology developed by chemists at UCLA is capable of storing solar energy for up to several weeks an advance that could change the way scientists think about designing solar cells.
The findings are published June 19 in the journal Science("Long-lived photoinduced polaron formation in conjugated polyelectrolyte-fullerene assemblies".
"The scientists devised a new arrangement of solar cell ingredients, with bundles of polymer donors (green rods) and neatly organized fullerene acceptors (purple, tan.
The new design is inspired by the way that plants generate energy through photosynthesis. Biology does a very good job of creating energy from sunlight,
To capture energy from sunlight conventional rooftop solar cells use silicon, a fairly expensive material. There is currently a big push to make lower-cost solar cells using plastics, rather than silicon,
but todays plastic solar cells are relatively inefficient, in large part because the separated positive and negative electric charges often recombine before they can become electrical energy.
Modern plastic solar cells dont have well-defined structures like plants do because we never knew how to make them before,
Tolbert said. But this new system pulls charges apart and keeps them separated for days,
or even weeks. Once you make the right structure you can vastly improve the retention of energy.
The two components that make the UCLA-developed system work are a polymer donor and a nanoscale fullerene acceptor.
the process generates electrical energy. The plastic materials, called organic photovoltaics, are organized typically like a plate of cooked pasta a disorganized mass of long, skinny polymer spaghetti with random fullerene meatballs.
The researchers are already working on how to incorporate the technology into actual solar cells. Yves Rubin, a UCLA professor of chemistry and another senior co-author of the study,
though, the UCLA research has proven that inexpensive photovoltaic materials can be organized in a way that greatly improves their ability to retain energy from sunlight t
Shes designed a village-scale desalination system that runs on solar power. Since her system is powered by the sun,
"The results published online June 23 in the journal Nature Communications could transform the manufacture of high-tech coatings for anti-reflective surfaces, improved solar cells,
"For example, a single layer of platinum nanowires conducts electricity in only one direction, but a two-layer mesh conducts uniformly in all directions."
even at the extremely low power levels characteristic of tiny solar cells. Previous experimental ultralow-power converters had efficiencies of only 40 or 50 percent.
Where its predecessors could use a solar cell to either charge a battery or directly power a device,
Ups and downs The circuit chief function is to regulate the voltages between the solar cell, the battery,
and falls depends on the voltage generated by the solar cell, which is highly variable. So the timing of the switch throws has to vary, too.
whose selection is determined by the solar cell voltage. Once again, when the capacitor fills, the switches in the inductor path are flipped. n this technology space,
While the mirror by itself would simply reflect all of the incident light energy the absorbing layer selectively filters out a narrow slice of the spectrum,
The device, described in a study published June 23 in Nature Communications("Bifunctional non-noble metal oxide nanoparticle electrocatalysts through lithium-induced conversion for overall water splitting"),could provide a renewable source of clean
'This bifunctional catalyst can split water continuously for more than a week with a steady input of just 1. 5 volts of electricity.
'At first the device only needed 1. 56 volts of electricity to split water, but within 30 hours we had to increase the voltage nearly 40 percent.
"Quantum dots, which have use in diverse applications such as medical imaging, lighting, display technologies, solar cells, photocatalysts, renewable energy and optoelectronics, are typically expensive and complicated to manufacture.
In particular, current chemical synthesis methods use high temperatures and toxic solvents, which make environmental remediation expensive and challenging.
and manufacture of superconductors or high-efficiency solar cells and light sensors, said leader of the research,
#Researchers develop new storage cell for solar energy storage, nighttime conversion (Nanowerk News) A University of Texas at Arlington materials science and engineering team has developed a new energy cell that can store large-scale solar energy even
when it's dark. The innovation is an advancement over the most common solar energy systems that rely on using sunlight immediately as a power source.
Those systems are hindered by not being able to use that solar energy at night or when cloudy conditions exist.
The UT Arlington team developed an all-vanadium photo-electrochemical flow cell that allows for efficient and large-scale solar energy storage even at nighttime.
The team is now working on a larger prototype.""This research has a chance to rewrite how we store
and use solar power, "said Fuqiang Liu, an assistant professor in the Materials science and engineering Department who led the research team."
"As renewable energy becomes more prevalent, the ability to store solar energy and use it as a renewable alternative provides a sustainable solution to the problem of energy shortage.
It also can effectively harness the inexhaustible energy from the sun."Dong Liu (left), Zi Wei (center) and Fuqiang Liu, an assistant professor in the UT Arlington Materials science and engineering Department.
000 Faculty Early Career development grant awarded to Liu to improve the way solar energy is captured, stored and transmitted for use.
said a major drawback of current solar technology is the limitation on storing energy under dark conditions."
"We have demonstrated simultaneously reversible storage of both solar energy and electrons in the cell, "Dong Liu said."
"Release of the stored electrons under dark conditions continues solar energy storage, thus allowing for unintermittent storage around the clock."
said that the research should allow solar energy storage to be done in a much higher capacity and on a much larger scale."
In the beginning, the idea was to develop a radioactivity sensor for inside a nuclear power station says Tijmen Euser from the Max Planck Institute in Erlangen.
By wrapping the fibre around the reactor, fibre-optic sensors could probe the entire surface of a reactor.
It turns out, however, that radioactive radiation darkens the interior of conventional glass fibres so that light can no longer propagate therein,
"Research on Bioenergy is an active field at Ume University. An important, practical application of the new knowledge can be enzymatic digestion of useful molecules from wooden raw materials,
such as concentrating solar energy and increasing signal speed in optical communications.""Invisibility may seem like magic at first,
We can change the way light waves are being reflected at will and ultimately focus a large area of sunlight onto a solar power tower, like
where they create clothing that kills bacteria, conducts electricity, wards off malaria, captures harmful gas and weaves transistors into shirts and dresses.
With ultrathin solar panels for trim and a USB charger tucked into the waist, the Southwest-inspired garment captured enough sunshine to charge cell phones
Nanogold, for example, has incredible optical properties that allow it to absorb light energy very well. Currently only tested in mice,
It's an advance that could have huge implications for everything from photography to solar power.
meaning it can gather a lot of light energy, and then scatters the light over a very large area,
this one very small optical device can receive light energy from all around and yield a surprisingly strong output.
Given the nanoresonator's capacity to absorb large amounts of light energy, the technology also has potential in applications that harvest the sun's energy with high efficiency.
In addition, Yu envisions simply letting the resonator emit that energy in the form of infrared light toward the sky,
and could enable new technologies in light sensing and solar energy conversion, "Yu says s
#Significant development in the understanding of macroscopic quantum behavior For the first time, the wavelike behaviour of a room-temperature polariton condensate has been demonstrated in the laboratory on a macroscopic length scale.
cyanobacteria suck in huge amounts of carbon dioxide from the environment and convert it into other materials, such as biomass.
#Novel method creates nanowires with new useful properties (Nanowerk News) Harvard scientists have developed a first-of-its-kind method of creating a class of nanowires that one day could have applications in areas ranging from consumer electronics to solar panels.
Professor of Chemistry, could have applications in areas ranging from consumer electronics to solar panels. This is really a fundamental Discovery day said.
and lead to faster transistors, cheaper solar cells, new types of sensors and more efficient bioelectric sensory devices.
and it can conduct electricity as well as copper, carrying electrons with almost no resistance even at room temperature, a property known as ballistic transport.
An optical transistor could perform a similar role for light instead of electricity, bringing far faster systems than now possible.
#Nikola Labs unveils new tech to harvest electricity from EMFS; learn history behind Nikola Tesla's free electricity A revolutionary new energy harvesting technology recently unveiled by Nikola Labs,
an Ohio-based startup company inspired by the late inventor and energy genius Nikola Tesla,
reportedly harvests the electromagnetic radiation transferring to and from mobile phones and converts it into direct current (DC) electrical energy,
which reports at the time highlighted was being designed to draw millions of volts of electricity through the air from Niagara falls and feed it into cities, factories and private houses from the tops of towers, all without wires.
much as solar panels convert light energy into electrical energy. That voltage was boosted then to a useful level by a DC-DC converter (arxiv. org/abs/1505.06815.
#Improved, cheaper hybrid solar cell material created Researchers at Lithuania Kaunas University of Technology (KTU) Organic chemistry department have developed a new semiconductor material,
ffers a much cheaper alternative to those currently used in hybrid solar cells The efficiency of the new semiconductor methoxydiphenylamine-substituted carbazole,
The solar cells containing organic semiconductors created at KTU were constructed and tested by physicists at Lausanne. The tests revealed that the efficiency of the cellsconverting solar energy into electricity was 16.9%.
%Professor Getautis commented, he material created by us is considerably cheaper and the process of its synthesis is complicated less than that of the currently-used analog material.
Also, both materials have a similar efficiency of converting solar energy into electricity. That means that our semiconductors have similar characteristics to the known alternatives
and incorporated into a CH3NH3PBI3 perovskite solar cell, which displayed a power conversion efficiency of 16.91,
Various electro-optical measurements were carried out to characterize the new material. rof Getautis said that the material will be used in the construction of future solar cells:
lmost all solar cells are made from inorganic semiconductors. Hybrid, semi-organic solar cells are still being developed and perfected at the research centers all over the world.
KTU and Swiss Federal Institute of technology Lausanne have registered the invention at the European Patent office. e concluded, n V886,
and solid-state dye-sensitized solar cells. ur paper is among the 5%of most important publications in one of the most influential chemistry journals followed by all undertaking research in the field of chemistry.
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