Excitons Need Space to Separate: Free Carrier Production in Organic Solar Cells (IMAGE)

DOE/US Department of Energy

Excitons Need Space to Separate: Free Carrier Production in Organic Solar Cells

Caption

In a solar cell, when light (green arrow) is absorbed by an organic semiconductor, an electron (-) can remain associated with a hole (+), or transfer beyond a critical radius (rc) and form a free carrier. Images: real space (left), Gibbs energy (right).

Credit

Obadiah Reid and Al Hicks, National Renewable Energy Laboratory

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Obadiah Reid and Al Hicks, National Renewable Energy Laboratory

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