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Yayınlanmış 1 Ocak 2012 | Sürüm v1
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Investigation of the degradation mechanisms of a variety of organic photovoltaic devices by combination of imaging techniques-the ISOS-3 inter-laboratory collaboration

Oluşturanlar

  • 1. Ilmenau Univ Technol, Inst Phys, D-98693 Ilmenau, Germany
  • 2. Tech Univ Denmark, Dept Energy Convers & Storage, DK-4000 Roskilde, Denmark
  • 3. Tech Univ Dresden, Inst Angew Photophys, Arbeitsgrp Organ Solarzellen OSOL, D-01062 Dresden, Germany
  • 4. Natl Renewable Energy Lab, Golden, CO 80401 USA
  • 5. Holst Ctr, NL-5656 AE Eindhoven, Netherlands
  • 6. Fraunhofer Inst Solar Energy Syst ISE, D-79110 Freiburg, Germany
  • 7. Hasselt Univ, WET OBPC, B-3590 Diepenbeek, Belgium
  • 8. IMEC, IMOMEC Associated Lab, B-3590 Diepenbeek, Belgium
  • 9. CSIC, CIN2, Lab Nanostruct Mat Photovolta Energy, ETSE, E-08193 Bellaterra, Barcelona, Spain

Açıklama

The investigation of degradation of seven distinct sets (with a number of individual cells of n >= 12) of state of the art organic photovoltaic devices prepared by leading research laboratories with a combination of imaging methods is reported. All devices have been shipped to and degraded at Riso DTU up to 1830 hours in accordance with established ISOS-3 protocols under defined illumination conditions. Imaging of device function at different stages of degradation was performed by laser-beam induced current (LBIC) scanning; luminescence imaging, specifically photoluminescence (PLI) and electroluminescence (ELI); as well as by lock-in thermography (LIT). Each of the imaging techniques exhibits its specific advantages with respect to sensing certain degradation features, which will be compared and discussed here in detail. As a consequence, a combination of several imaging techniques yields very conclusive information about the degradation processes controlling device function. The large variety of device architectures in turn enables valuable progress in the proper interpretation of imaging results-hence revealing the benefits of this large scale cooperation in making a step forward in the understanding of organic solar cell aging and its interpretation by state-of-the-art imaging methods.

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