Figure 7

External quantum efficiency (EQE) spectra of (a) PTB7-Th:BAF-4CN and (b) PTB7-Th:BAF-2HDT based devices under different conditions.
External quantum efficiency (EQE) spectra of (a) PTB7-Th:BAF-4CN and (b) PTB7-Th:BAF-2HDT based devices under different conditions.