The Oxford Photovoltaics project recently revealed its dye-printed cells, which are made using low-cost, plentiful and nontoxic materials, including a metal oxide found in common toothpaste.
The cells produced by the Oxford Photovoltaics project do not require rare metals or toxic materials and are 50 percent cheaper to produce than the current most cost-effective solar technology out there. Because the thin dye can be printed on nearly any surface (including glass) in several colors, solar architecture could incorporate colorful windows instead of solar panels.
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