1 Department of Energy Conversion and Storage, Technical University of Denmark2 Imaging and Structural Analysis, Department of Energy Conversion and Storage, Technical University of Denmark3 Functional organic materials, Department of Energy Conversion and Storage, Technical University of Denmark4 Universidad Autonoma de Barcelona5 Pomona College6 Katholieke Universiteit7 Dresden University of Technology8 National Renewable Energy Laboratory9 Holst Center10 Fraunhofer Gesellschaft11 Department of Micro- and Nanotechnology, Technical University of Denmark12 Hasselt University13 Ilmenau University of Technology14 Université Blaise Pascal, Clermont-Ferrand15 TÜBITAK National Metrology Institute16 Brookhaven National Laboratory17 Risø National Laboratory for Sustainable Energy, Technical University of Denmark18 Hasselt University19 Brookhaven National Laboratory
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.
Proceedings of Spie, the International Society for Optical Engineering, 2012, Vol 8472
Polymer solar cells; Organic solar cells; Stability; Metal electrodes; Polymer/metal interaction; Degradation
Main Research Area:
Reliability of Photovoltaic Cells, Modules, Components, and Systems V, 2012