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    efficient solar cells tagged posts

    Researchers use Quantum Computer to Identify Molecular Candidate for Development of more Efficient Solar Cells

    July 31, 2023, Categories  Physics, Technology/Electronics

    ORNL team members applied three independent strategies to decrease their project’s computational workload, which reduced their time to solution from months to a few weeks. First, in a technique called qubit tapering, they decreased the number of qubits required to express the problem, reducing the size of the problem itself. Second, they took fewer measurements to solve the problem by measuring groups of terms once rather than measuring each individual term from every group (a process called qubit-wise commutativity). Third, instead of implementing each circuit individually, they found a way to run four circuits in parallel, allowing them to use all 20 qubits in the H1-1. Illustration credit: Adam Malin/ORNL.

    Using the full capabilities of the Quantinuum H1-1 quantum computer, resear...

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    Discovery of new Transparent Thin Film material could improve Electronics and Solar cells

    May 7, 2017, Categories  Chemistry/Nanotechnology, Physics, Technology/Electronics

    A team of researchers, led by the University of Minnesota, have discovered a new nano-scale thin film material with the highest-ever conductivity in its class.

    A team of researchers, led by the University of Minnesota, have discovered a new nano-scale thin film material with the highest-ever conductivity in its class.

    A new nano-scale thin film material with the highest-ever conductivity in its class has been found by a team of researchers, led by the University of Minnesota. The new material could lead to smaller, faster, and more powerful electronics, as well as more efficient solar cells. Besides high conductivity, it also has a wide bandgap, which means light can easily pass through the material making it optically transparent. In most cases, materials with wide bandgap, usually have either low conductivity or poor transparency.

    “The high conductivity and wide bandgap make this an ideal material for making optically transparent conducting fil...

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    Match-Heads Boost Photovoltaic Efficiency

    December 14, 2015, Categories  Physics, Technology/Electronics

    (Left) Silicon wires with match heads and (right) light absorption profile of a single match-head wire at 587 nm absorption. Credit: Image courtesy of the Center for Integrated Nanotechnologies

    (Left) Silicon wires with match heads and (right) light absorption profile of a single match-head wire at 587 nm absorption. Credit: Image courtesy of the Center for Integrated Nanotechnologies

    Crystal growth on a nano/microscale level produces “match-head”-like, 3D structures that enhance light absorption and photovoltaic efficiency. This is the first large structure grown on a nanowire tip and it creates a completely new architecture for harnessing energy. Match-head semiconductor nanowires focus incident light for greater overall efficiency. The match heads are naturally formed during the wire-growth process, which can be applied to various materials and structures for photonic and optoelectronic devices.

    Enhanced light absorption and efficient, photogenerated carrier collection are...

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