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Volunteers Help Scientists in Search for Cheap Solar Cells


Volunteers Help Scientists in Search for Cheap Solar Cells
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Solar cells remain a relatively expensive investment for ordinary consumers of electric power. But a group of scientists at Harvard University is looking for cheaper, organic solar cells, which could be painted on rooftops and building facades. In their research, they are employing the help of thousands of volunteers around the world. VOA's George Putic has more.

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