Evolution of phase separation upon annealing and the influence on photocurrent generation in ternary blend organic solar cells

I Hwang, CR McNeill, NC Greenham - Synthetic Metals, 2014 - Elsevier
The morphological changes by thermal annealing and their impact on photocurrent
generation in binary and ternary blend organic solar cells were studied with
photoluminescence measurements. Specifically the influence of adding the polyfluorene
copolymer poly (9, 9-dioctylfluorene)-2, 7-diyl-alt-[4, 7-bis (3-hexylthiophen-5-yl) 2, 1, 3-
benzoth iadiazole]-2′, 2 ″-diyl)(F8TBT) to poly (3-hexylthiophene)(P3HT):[6, 6]-phenyl-C
61-butyric acid methyl ester (PCBM) blends was investigated. This third constituent (F8TBT) …
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