Now, researchers at the Massachusetts Institute of Technology’s Center for Excitonics
have published a compelling case that the key to greater solar
efficiency might be an organic dye called pentacene. In today’s issue of
Science
Daniel Congreve, Jiye Lee, Nicholas Thompson, Marc Baldo and six others
show that a photovoltaic cell based on pentacene can generate two
electrons from a single photon—more electricity from the same amount of
sun. Scientists have suspected for some time that this might work;
today’s paper is proof of concept.
http://www.scientificamerican.com/article.cfm?id=the-solar-cell-that-turns-1-photon-into-2-electrons
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