Morphological Device Model for Organic Bulk Heterojunction Solar Cells

Funding Agencies|Ministry of Economic Affairs
We present a numerical model for calculating current-voltage characteristics of polymer:fullerene bulk hetrojunction solar cells at different degrees of nanoscale phase separation. We show that the short-circuit current enhancement with finer phase separation is due to a reduction in bimolecular recombination caused by lateral movement of photogenerated electrons to the fullerene-rich phase. At high bias, vertical electron transport is enhanced and lateral movement is reduced, causing a significant field-dependent carrier extraction for coarse morphologies.

van Bavel, S. S.Eindhoven University of Technology, Netherlands (författare)
Wienk, M. M.Eindhoven University of Technology, Netherlands (författare)
Janssen, R. A. J.Eindhoven University of Technology, Netherlands; Eindhoven University of Technology, Netherlands (författare)
Kemerink, M.Eindhoven University of Technology, Netherlands(Swepub:liu)marke89 (författare)
Eindhoven University of Technology, NetherlandsEindhoven University of Technology, Netherlands; Eindhoven University of Technology, Netherlands (creator_code:org_t)

Ingår i:Nano letters (Print): American Chemical Society9:8, s. 3032-30371530-69841530-6992

Av författaren/redakt...: Maturova, K.; van Bavel, S. S.; Wienk, M. M.; Janssen, R. A. J ...; Kemerink, M.

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