ZnO nanowire were used to expand the active layer in the Cu2O light-absorbing layer and in the highly resistive i-ZnO layer to reduce the recombination loss at the heterointerface of ZnO/Cu2O photovoltaic devices.
Dec 5th, 2014
Read moreResearchers have fabricated back-gated field-effect phototransistors made of MoSe2 crystals having a thickness of only twenty nanometers. The devices were fabricated by mechanical cleavage of MoSe2 crystals into few-layered flakes, followed by transfer onto a silicon wafer with pre-deposited titanium electrodes.
Dec 5th, 2014
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Scientists have developed an ultrafast quantum chemical method, which allows rapid and accurate simulations of complex molecular systems consisting of thousands of molecules.
Dec 5th, 2014
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Researchers are closer to understanding the process by which nanoparticles made of more than one material - called heterostructured nanoparticles - form. This process, known as heterogeneous nucleation, is the same mechanism by which beads of condensation form on a windowpane.
Dec 5th, 2014
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How can light which has been captured in a solar cell be examined in experiments? Scientists have succeeded in looking directly at light propagation within a solar cell by using a trick. The photovoltaics researchers are working on periodic nanostructures that efficiently capture a portion of sunlight which is normally only poorly absorbed.
Dec 5th, 2014
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A chemical reaction is a rearrangement of atoms in and between molecules, the breaking of old and the formation of new bonds. The glue that binds atoms in molecules and creates the bonds between them is made out of valence electrons. Scientists were able to show theoretically that the ultrafast x-ray camera is not only sensitive to inert core electrons but may also visualize the motion of chemically active valence electrons.
Dec 5th, 2014
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Mit atomistischen Simulationen ist es Forschern gelungen, das Verhalten einer Graphenschutzschicht auf Platin (111) unter verschiedenen Anpressdrücken auf atomarer Ebene präzise abzubilden.
Dec 5th, 2014
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The behaviour of iron oxide surfaces has startled scientists for years. New research shows that everybody has been thinking about them all wrong.
Dec 5th, 2014
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Scientists use X-ray laser as ultra slow-motion camera.
Dec 4th, 2014
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For the first time, scientists have discovered how to produce ultra-thin diamond nanothreads that promise extraordinary properties, including strength and stiffness greater than that of today's strongest nanotubes and polymers.
Dec 4th, 2014
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Controlled emission and spatial splitting of electron pairs demonstrated.
Dec 4th, 2014
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Biologists show death has no impact on strength geckos use to adhere to surfaces.
Dec 3rd, 2014
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A new electrode design for lithium-ion batteries has been shown to potentially reduce the charging time from hours to minutes by replacing the conventional graphite electrode with a network of tin-oxide nanoparticles.
Dec 3rd, 2014
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Groundbreaking wireless material triggers brain activity in response to light.
Dec 3rd, 2014
Read moreAn electronic 'tongue' could one day sample food and drinks as a quality check before they hit store shelves. Or it could someday monitor water for pollutants or test blood for signs of disease.
Dec 3rd, 2014
Read moreFor years, scientists have been pursuing 'artificial leaf' technology, a green approach to making hydrogen fuel. Now, one team reports progress toward a stand-alone system that lends itself to large-scale, low-cost production.
Dec 3rd, 2014
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