Understanding charge formation and transport could make Organic photovoltaic cells the future

August 20, 2014 4:20 PM

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Understanding charge formation and transport could make Organic photovoltaic cells the future

Organic photovoltaic cells, a type of solar cell that uses polymeric materials to capture sunlight, show tremendous promise as energy conversion devices, thanks to key attributes such as flexibility and low-cost production. But one giant hurdle holding back organic photovoltaic technologies have been the complexity of their power conversion processes, which involve separate charge formation and transport processes.

To maneuver around this problem, a team of researchers in Japan has developed a method to determine the absolute value of the charge formation efficiency. The secret of their method, as they report in Applied Physics Letters, is the combination of two types of spectroscopy.

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