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RESEARCH
April 20, 2009
Algae proteins boost solar concentrators
Embed light-absorbing algae proteins
in plastic and you can increase the efficiency of a type of solar
concentrator.
The algae antenna proteins, dubbed phycobilisomes, absorb
visible light at one end and efficiently transfer the energy through
the other end. This aids photosynthesis for the algae. Embedding the
proteins in the plastic-absorbing layer of luminescent solar concentrators
increases the amount of light the concentrators collect.
Luminescent solar concentrators absorb sunlight and convert
the energy to a specific color of light. The devices concentrate sunlight
onto small solar cells. It's cheaper to use small solar cells.
The algae antenna proteins reduce the amount of light the
concentrators reabsorb, which is lost as heat, by 50 percent.
Research paper:
Luminescent
Solar Concentrators Employing Phycobilisomes
Advanced Materials, published online April 20, 2009
Researchers' contact:
Marc
Baldo
Related stories and briefs:
Window
generates electricity -- previous research
Back to ERN
April 20, 2009
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