Fig. 3: Electrical properties and stability of the BBL:PCAT-K blends.

a Conductivity of BBL:PCAT-K films as a function of BBL content. b UPS spectra of BBL and BBL:PCAT-K (1:1) films. c Thermal stability of BBL:PCAT-K (1:1) films annealed at 200 °C in nitrogen for 50 h. d Stability of BBL:PCAT-K (1:1) films washed with common organic solvents (CF chloroform, CB chlorobenzene, DMF dimethylformamide, DMSO dimethylsulfoxide, ACN acetonitrile, THF tetrahydrofuran, EtOH ethanol, and IPA isopropyl alcohol). Error bars indicate the SD of ten experimental replicates.