Ancient Pigment Can Boost Energy Efficiency

  • Magazine Article
  • TBMG-33617
Published January 01, 2019 by Tech Briefs Media Group in United States
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  • English

Egyptian blue, derived from calcium copper silicate, was routinely used on ancient depictions of gods and royalty. Previous studies have shown that when Egyptian blue absorbs visible light, it then emits light in the near-infrared range. In fact, the pigment's fluorescence can be 10 times stronger than previously thought.