Leafy greens may soon be used in making silicon-based solar cells, say researchers from Vanderbilt University in the United States. Called bio-hybrid cells, silicon combined with plant protein has been tried before. However, scientists have found a way to coat the silicon to more efficiently convert sunlight to electricity. The results published in the journal Advanced Materials are still nowhere near as efficient as traditional solar cells, but researchers said the long term prospect for the technology was good because it uses cheap, renewable resources that are plentiful in energy-poor nations.
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