Codependence between crystalline and photovoltage evolutions in P3HT:PCBM solar cells probed with in-operando GIWAXS

Daniel Moseguí González, Christoph J. Schaffer, Stephan Pröller, Johannes Schlipf, Lin Song, Sigrid Bernstorff, Eva M. Herzig, Peter Müller-Buschbaum

Research output: Contribution to journalArticlepeer-review

27 Scopus citations

Abstract

We address the correlation between the crystalline state of photoactive materials in a model organic solar cell based on poly(3-hexylthiophene-2,5-diyl):phenyl-C60-butyric acid methyl ester (P3HT:PCBM) and the photovoltage in an in-operando investigation. I-V curves are simultaneously measured together with grazing incidence wide-angle X-ray scattering probing the crystalline state of the device active layer as a function of the operation time. The results show a high degree of correlation between open-circuit voltage VOC and the crystalline state of P3HT.

Original languageEnglish
Pages (from-to)3282-3287
Number of pages6
JournalACS Applied Materials and Interfaces
Volume9
Issue number4
DOIs
StatePublished - 1 Feb 2017
Externally publishedYes

Keywords

  • Crystallinity
  • GIWAXS
  • In-operando
  • Nanomorphology
  • Organic photovoltaics

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