Silicon panel based technology requires a very costly contaminating manufacturing process while organic photovoltaic OPV devices have been positioned as one of the most attractive alternatives as a source of solar energy This research has ... - Read More
Photovoltaic cells directly convert sun light into electricity and hence are key technological devices to meet one of the challenges that humankind has to face in this century a sustainable and clean production of renewable ... - Read More
Batteries do not age gracefully The lithium ions that power portable electronics cause lingering structural damage with each cycle of charge and discharge making devices from smartphones to tablets tick toward zero faster and faster ... - Read More
Update May 27 2014 NASA successfully launched the Colorado High resolution Echelle Stellar Spectrograph or CHESS payload aboard a Black Brant IX suborbital sounding rocket at 3 35 a m EDT on May 24 2014 ... - Read More
In a recent study involving researchers from Ludwig Maximilians Universitaet LMU in Munich the desorption of oxygen molecules from a silver surface was successfully visualized for the first time The effects account for the shortcomings ... - Read More
A chip scale device that both produces and detects a specialized gas used in biomedical analysis and medical imaging has been built and demonstrated at the National Institute of Standards and Technology NIST Described in ... - Read More
Scientists at the U S Department of Energy's Argonne National Laboratory have discovered a previously unknown phase in a class of superconductors called iron arsenides This sheds light on a debate over the interactions between ... - Read More
Michael Lewis's bestselling book Flash Boys describes how some brokers engaging in high frequency trading exploit fast telecommunications to gain fraction of a second advantage in the buying and selling of stocks But you don't ... - Read More
Photocatalysis catalysis assisted by light is a promising route to convert solar energy into chemical fuels Particularly appealing is the possibility to use photocatalysis to split water molecules into molecular hydrogen Although photocatalysis has been ... - Read More
They shed light on atomic and molecular processes ultrashort laser pulses are required to study extremely fast quantum phenomena For years scientists have been trying to tune the shape of light waves so as to ... - Read More
Caltech researchers have found a way to make measurements that go beyond the limits imposed by quantum physics Today we are capable of measuring the position of an object with unprecedented accuracy but quantum physics ... - Read More
Magnetic devices like hard drives magnetic random access memories MRAMs molecular magnets and quantum computers depend on the manipulation of magnetic properties In an atom magnetism arises from the spin and orbital momentum of its ... - Read More
Graphene a one atom thick form of the carbon material graphite has been hailed as a wonder material strong light nearly transparent and an excellent conductor of electricity and heat But a number of practical ... - Read More
For the first time scientists have a clearer understanding of how to control the appearance of a superconducting phase in a material adding crucial fundamental knowledge and perhaps setting the stage for advances in the ... - Read More
The icing on the cake for semiconductor nanocrystals that provide a non damped optoelectronic effect may exist as a layer of tin that segregates near the surface One method of altering the electrical properties of ... - Read More
A University of Arizona led team of physicists has discovered how to change the crystal structure of graphene more commonly known as pencil 'lead' with an electric field an important step toward the possible use ... - Read More
Materials that can be used for thermoelectric devices those that turn a temperature difference into an electric voltage have been known for decades But until now there has been no good explanation for why just ... - Read More
An international team of scientists led by physicists at the University of Arkansas has tracked the dynamic movement of ripples in freestanding graphene at the atomic level This discovery advances the fundamental understanding of one ... - Read More
For the observation of cold matter in the interstellar medium astronomers need instruments for the detection of terahertz radiation Specific high resolution instruments are based on terahertz quantum cascade lasers but operate only at cryogenic ... - Read More
A new version of spaser technology being investigated could mean that mobile phones become so small efficient and flexible they could be printed on clothing A team of researchers from Monash University's Department of Electrical ... - Read More
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