4.1 Materials and Solution Preparation
PBDB-TF, and ITIC-4F, were purchased from 1-Material.
PC61BM was purchased from Nano-C. The PEDOT:PSS was
purchased from H.C. Starck Clevios. PFN-Br was purchased from Solarmar
Inc. Zinc acetate dihydrate
(Zn(CH3COO)2•2H2O,
99.9%), ethanolamine
(NH2CH2CH2OH, 99.5%)
and 2-methoxyethanol
(CH3OCH2CH2OH,
>99.8%) were purchased from Sigma Aldrich. All the
materials and solvents were commercially available and used without
further purification. PBDB-TF and ITIC-4F were dissolved (1:1, wt%) in
a mixed solution of chlorobenzene and 1,8-diiodooctane (99.5:0.5,
vol%).