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Published January 1, 2012 | Version v1
Conference paper Open

Combined Characterization Techniques to Understand the Stability of a Variety of Organic Photovoltaic Devices - the ISOS-3 inter-laboratory collaboration

Creators

  • 1. ETSE, Ctr Invest Nanociencia & Nanotecnol CIN2, CSIC, Lab Nanostruct Mat Photovolta Energy, Campus UAB,Edifici Q,2nd Floor, Barcelona, Spain
  • 2. Pomona Coll, Dept Phys & Astron, Claremont, CA 91711 USA
  • 3. Natl Renewable Energy Lab, Golden, CO 80401 USA
  • 4. Holst Ctr, NL-5656 Eindhoven, Netherlands
  • 5. Fraunhofer Inst Solar Energy Syst ISE, D-79110 Freiburg, Germany
  • 6. Tech Univ Denmark, Dept Energy Convers & Storage, DK-4000 Roskilde, Denmark
  • 7. IMEC, IMOMEC Assoc Lab, B-3590 Diepenbeek, Belgium
  • 8. Hasselt Univ, E-08193 Barcelona, Spain
  • 9. Tech Univ Ilmenau, Inst Phys, G-98693 Ilmenau, Germany

Description

This work is part of the inter-laboratory collaboration to study the stability of seven distinct sets of state-of-the-art organic photovoltaic (OPVs) devices prepared by leading research laboratories. All devices have been shipped to and degraded at the Danish Technical University (DTU, formerly RISO-DTU) up to 1830 hours in accordance with established ISOS-3 protocols under defined illumination conditions. In this work we present a summary of the degradation response observed for the NREL sample, an inverted OPV of the type ITO/ZnO/P3HT:PCBM/PEDOT:PSS/Ag/Al, under full sun stability test. The results reported from the combination of the different characterization techniques results in a proposed degradation mechanism. The final conclusion is that the failure of the photovoltaic response of the device with time under full sun solar simulation, is mainly due to the degradation of the electrodes and not to the active materials of the solar cell.

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