Ancient Pigment Can Boost Energy Efficiency

Read the full story from Berkeley Lab.

A color developed by Egyptians thousands of years ago has a modern-day application as well – the pigment can boost energy efficiency by cooling rooftops and walls, and could also enable solar generation of electricity via windows…

Berkeley Lab researchers have already shown that fluorescent ruby red pigments can be an effective alternative to white; this insight on Egyptian blue adds to the menu of cooling color choices. Further, they found that fluorescent green and black colors can be produced with yellow and orange co-pigments. The new findings were recently published in the Journal of Applied Physics.

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