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Replacement for silicon devices looms big with ORNL discovery

22-Mar-2016

Two-dimensional electronic devices could inch closer to their ultimate promise of low power, high efficiency and mechanical flexibility with a processing technique developed at the Department of Energy’s Oak Ridge National Laboratory. A team led by Olga Ovchinnikova of ORNL’s Center for Nanophase ...

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Quantum dot solids: This generation's silicon wafer?

26-Feb-2016

Just as the single-crystal silicon wafer forever changed the nature of communication 60 years ago, a group of Cornell researchers is hoping its work with quantum dot solids - crystals made out of crystals - can help usher in a new era in electronics. The team, led by Tobias Hanrath, associate ...

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New efficiency record with dual-junction solar cell set

08-Jan-2016

Scientists at the Energy Department's National Renewable Energy Laboratory (NREL) and at the Swiss Center for Electronics and Microtechnology (CSEM) have jointly set a new world record for converting non-concentrated (1-sun) sunlight into electricity using a dual-junction III-V/Si solar cell. The ...

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Stanford technology makes metal wires on solar cells nearly invisible to light

27-Nov-2015

A solar cell is basically a semiconductor, which converts sunlight into electricity, sandwiched between metal contacts that carry the electrical current. But this widely used design has a flaw: The shiny metal on top of the cell actually reflects sunlight away from the semiconductor where ...

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Nano-mechanical study for next-gen batteries

A detailed nano-mechanical study of mechanical degradation processes in silicon structures

28-Sep-2015

A detailed nano-mechanical study of mechanical degradation processes in silicon structures containing varying levels of lithium ions offers good news for researchers attempting to develop reliable next-generation rechargeable batteries using silicon-based electrodes. Anodes based on silicon can ...

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UGA chemists' synthesis of silicon oxides opens 'new world in a grain of sand'

27-Apr-2015

In an effort that reaches back to the 19th-century laboratories of Europe, a discovery by University of Georgia chemistry researchers establishes new research possibilities for silicon chemistry and the semiconductor industry. The study, published in Nature Chemistry, gives details on the first ...

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New transitory form of silica observed

24-Mar-2015

A Carnegie-led team was able to discover five new forms of silica under extreme pressures at room temperature. Their findings are published by Nature Communications.Silicon dioxide, commonly called silica, is one of the most-abundant natural compounds and a major component of the Earth's crust ...

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Perovskites provide big boost to silicon solar cells, Stanford study finds

20-Jan-2015

Stacking perovskites onto a conventional silicon solar cell dramatically improves the overall efficiency of the cell, according to a new study led by Stanford University scientists. The researchers describe their novel perovskite-silicon solar cell in Energy & Environmental Science."We've been ...

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Scientists measure speedy electrons in silicon

Attosecond laser provides first 'movie' of fast electrons jumping band-gap of semiconductor

22-Dec-2014

The entire semiconductor industry, not to mention Silicon Valley, is built on the propensity of electrons in silicon to get kicked out of their atomic shells and become free. These mobile electrons are routed and switched though transistors, carrying the digital information that characterizes our ...

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Silicon sponge improves lithium-ion battery performance

Increasing battery's storage capacity could allow laptops, electric vehicles to run longer

10-Jul-2014

The lithium-ion batteries that power our laptops and electric vehicles could store more energy and run longer on a single charge with the help of a sponge-like silicon material. Researchers developed the porous material to replace the graphite traditionally used in one of the battery's ...

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