Investigation of the degradation mechanisms of a variety of organic photovoltaic devices by combination of imaging techniques—the ISOS-3 inter-laboratory collaboration
Publication: Research - peer-review › Journal article – Annual report year: 2012
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 Risø
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.
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 Risø
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.
| Original language | English |
|---|---|
| Journal | Energy & Environmental Science |
| Publication date | 2012 |
| Volume | 5 |
| Journal number | 4 |
| Pages | 6521-6540 |
| ISSN | 1754-5692 |
| DOIs | |
| State | Published |
| Citations | Web of Science® Times Cited: 10 |
|---|
ID: 7590358