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IMEC Creates Efficient Solar Cell

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LEUVEN, Belgium Researchers at IMEC, a research centre for nanoelectronics and nanotechnology, have created a high-efficiency single-junction gallium-arsenide solar cell on a germanium substrate, which was provided by Umicore of Brussels. Shown is a single-junction gallium- arsenide solar cell on a germanium substrate. The cell, grown epitaxially on a substrate with an improved microdefect distribution, measures 0.25 cm2. The maximum conversion efficiency of 24.7 per cent was achieved with an open-circuit voltage of 999 mV, a short-circuit current of 29.7 mA/cm2 and a fill factor of...Read full article

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    Published: April 2008
    Glossary
    nanotechnology
    The use of atoms, molecules and molecular-scale structures to enhance existing technology and develop new materials and devices. The goal of this technology is to manipulate atomic and molecular particles to create devices that are thousands of times smaller and faster than those of the current microtechnologies.
    energyEuropeFeaturesnanoelectronicsnanotechnologysingle-junction gallium-arsenide solar cell

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