Web Date: August 7, 2014
Leaves Inspire Photon Energy Upconversion Material
A new material that mimics the structure of a leaf helps light-sensitive dyes convert low-energy light into high-energy photons, a process known as upconversion (ACS Nano 2014, DOI: 10.1021/nn502496a). The leaflike nanopaper protects such dyes from oxygen damage, which could help solar cells and photocatalytic devices achieve high efficiencies, the researchers say.
One form of upconversion uses two types of dye molecules, a sensitizer and . . .
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