On the use of cyanine dyes as low-bandgap materials in bulk heterojunction photovoltaic devices

@inproceedings{Castro2006OnTU,
  title={On the use of cyanine dyes as low-bandgap materials in bulk heterojunction photovoltaic devices},
  author={Fernando A. Castro and Antonin Faes and Thomas Geiger and Carlos Frederico de Oliveira Graeff and Matthias Nagel and Frank N{\"u}esch and Roland Hany},
  year={2006}
}

• Fernando A. Castro, Antonin Faes, +4 authors Roland Hany
• Published 2006

Cyanine dyes with absorption edges of almost 1000 nm were used in combination with MEH-PPV for the fabrication of organic solar cells. For blended thin films, a pronounced phase separation between the two components occurred and resulted in photocurrents with different signs for bilayer and bulk heterojunction devices. Absorption spectra and selective dissolution experiments were used to illustrate the process of vertical phase segregation, with the preferential wetting of the polar anode by… CONTINUE READING

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