Figure 3

XPS spectra of PEDOT:PSS/PTB7 interface.
Measured XPS spectra of (a) S 2p and (b) F 1s of the PEDOT:PSS/PTB7 (0.3, 0.9, 2.0, 2.5, 5.6, 7.0 nm).
XPS spectra of PEDOT:PSS/PTB7 interface.
Measured XPS spectra of (a) S 2p and (b) F 1s of the PEDOT:PSS/PTB7 (0.3, 0.9, 2.0, 2.5, 5.6, 7.0 nm).