Fig. 2: Characterization of the GSET effect in the BBL:PCAT-K blend.

a Normalized absorbance of BBL, PCAT-K, and BBL:PCAT-K thin films. b EPR spectra of BBL, PCAT-K, and BBL:PCAT-K thin films. c, d XPS spectra of BBL, PCAT-K, and BBL:PCAT-K thin films: c N(1s) and d S(2p).