This title appears in the Scientific Report :
2022
Please use the identifier:
http://dx.doi.org/10.29363/nanoge.nsm.2022.275 in citations.
Long Lived OPV – what are the lifetime limitations of organic solar cells
Long Lived OPV – what are the lifetime limitations of organic solar cells
OPV cells have a proven efficiency of over 18 % while OPV modules have a proven record efficiency of 13.5 %. Both values are still increasing towards > 20 % for small area cells and > 15 % for large scale modules. With these performance values, OPV is reaching out to applications that are goin...
Saved in:
Personal Name(s): | Brabec, Christoph (Corresponding author) |
---|---|
Heumüller, Thomas | |
Contributing Institute: |
Helmholtz-Institut Erlangen-Nürnberg Erneuerbare Energien; IEK-11 |
Published in: |
Proceedings of the nanoGe Spring Meeting 2022 - Fundació Scito València, 2022. - ISBN - doi:10.29363/nanoge.nsm.2022.275 |
Imprint: |
Fundació Scito València
2022
|
DOI: |
10.29363/nanoge.nsm.2022.275 |
Conference: | nanoGe Spring Meeting 2022, Online (Spain), 2022-03-07 - 2022-03-11 |
Document Type: |
Contribution to a book Contribution to a conference proceedings |
Research Program: |
Cell Design and Development |
Publikationsportal JuSER |
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520 | |a OPV cells have a proven efficiency of over 18 % while OPV modules have a proven record efficiency of 13.5 %. Both values are still increasing towards > 20 % for small area cells and > 15 % for large scale modules. With these performance values, OPV is reaching out to applications that are going beyond the typical niche markets. The first generation of commercially available OPV modules shows lifetimes in the order of 5 years and more under outdoor conditions. Independent of the application, operational lifetime of organic solar cells is not fully understood. Few publications highlight operational lifetimes of over 25000 hrs under lab conditions. Organic solar cell materials being stable under light and oxygen are reported as well. We recently demonstrated solar cells that canbe operated in water and under 1 sun for hundreds of hours – unpackaged. However, all these “best you can do” lifetime values are reported for different material and interface systems.This talk will analyze the most common degradation mechanisms and outline, how they are overcome in modern OPV materials. Bulk degradation will be distinguished from interface degradation, and, not unexpected, interface degradation or interface related degradation is found to be the currently leading degradation mechanism. All these findings indicate that we can expect a significant improvement in operational stability of OPV in the next few years. | ||
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