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Morphological device model for organic bulk heterojunction solar cells

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 rec...

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Hauptverfasser: Maturová, Klára (VerfasserIn) , Bavel, Svetlana S. van (VerfasserIn) , Wienk, Martinus Maria (VerfasserIn) , Janssen, René A. J. (VerfasserIn) , Kemerink, Martijn (VerfasserIn)
Dokumenttyp: Article (Journal)
Sprache:Englisch
Veröffentlicht: July 29, 2009
In: Nano letters
Year: 2009, Jahrgang: 9, Heft: 8, Pages: 3032-3037
ISSN:1530-6992
DOI:10.1021/nl901511a
Online-Zugang:Verlag, Volltext: https://doi.org/10.1021/nl901511a
Volltext
Verfasserangaben:K. Maturová, S.S. van Bavel, M.M. Wienk, R.A.J. Janssen, and M. Kemerink
Beschreibung
Zusammenfassung: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.
Beschreibung:Gesehen am 16.12.2019
Beschreibung:Online Resource
ISSN:1530-6992
DOI:10.1021/nl901511a

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