Figure 6
UPS spectra of PTB7/PC71BM interface.
UPS spectra of (a) the normalized secondary electron cutoff, (b) the background removed HOMO and (c) magnified HOMO region of the PTB7/PC71BM (0.4, 0.6, 0.9, 1.3, 2.5, 5.0 nm).
Figure 6 | Scientific Reports
