A phenanthroline derivative as exciton blocking material for organic solar cells

作者：Li Chen; Schwab Matthias; Zhao Yanfei; Chen Long; Bruder Ingmar; Muenster Ingo; Erk Peter; Muellen Klaus

来源：Dyes and Pigments, 2013, 97(1): 258-261.

DOI：10.1016/j.dyepig.2012.12.003

• Phenanthroline
• Exciton blocking
• Organic solar cells
• HOMO/LUMO
• BCP/Bphen
• ZnPc/C60

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.

• 出版日期2013-4