Engineering breakthrough promises significantly more efficient solar cells

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A new technique could lead to significantly more efficient solar cells. Quantum dot photovoltaics offers the potential for low-cost, large-area solar power -- however these devices are not yet highly efficient in the infrared portion of the sun's spectrum, which is responsible for half of the sun's power that reaches Earth. The solution? Spectrally tuned, solution-processed plasmonic nanoparticles. These particles, researchers say, provide unprecedented control over light's propagation and absorption.NDER8ki7tPo