Journal
APPLIED PHYSICS LETTERS
Volume 102, Issue 16, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.4802276
Keywords
-
Categories
Funding
- BMBF (OPEG) [13N9720]
- Reiner Lemoine foundation
Ask authors/readers for more resources
We investigate the dominating recombination mechanisms in bulk heterojunction solar cells, using a blend of ZnPc and C-60 as model system. Analyzing the open-circuit voltage (V-oc) as a function of illumination intensity, we find that trap-assisted recombination dominates for low light intensities, whereas at 1 sun, direct/bimolecular recombination becomes important. The recombination parameters are not significantly influenced by the blend mixing ratio and are also valid for injected charges. By changing the hole transport layer, recombination at the contact is separately identified as further mechanism reducing Voc at higher light intensities. (C) 2013 AIP Publishing LLC [http://dx.doi.org/10.1063/1.4802276]
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available