The goal of making cheap organic solar cells may have gotten a little
more approachable with a new understanding of the basic science of
charge separation presented in a paper published online today, February
3, in Nature Communications.
Co-authored by Penn State electrical
engineer Noel Giebink with lead author Bethany Bernardo, an
undergraduate in his group, and colleagues at IMEC in Belgium, Argonne
National Lab, Northwestern, and Princeton, the paper suggests design
rules for making more efficient solar cells in the future.
Organic
solar cells currently have a top efficiency of approximately 10 percent
in the laboratory, much less than inorganic single crystal silicon.
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