Journal
DYES AND PIGMENTS
Volume 97, Issue 1, Pages 258-261Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.dyepig.2012.12.003
Keywords
Phenanthroline; Exciton blocking; Organic solar cells; HOMO/LUMO; BCP/Bphen; ZnPc/C60
Funding
- Bundesministerium fur Bildung und Forschung (BMBF)
- BASF SE
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Functionalization of phenanthroline in the 4,7-positions with pyridine groups is reported. The new material, 2,9-dimethyl-4,7-di(pyridin-4-yl)-1,10-phenanthroline (DMPP), shows lower HOMO and LUMO levels than those of bathophenanthroline (BPhen). DMPP-based zinc phthalocyanine (ZnPc):C-60 flat-heterojunction solar cells exhibit a 3.5% power efficiency which is higher than that of those devices with BPhen as the exciton blocking material. (C) 2012 Elsevier Ltd. All rights reserved.
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