Figure 5: Absorption and device performance.
From: A polymer tandem solar cell with 10.6% power conversion efficiency
(a) Absorption spectra of P3HT and PDTP-DFBT and solar spectrum. (b) Absorption spectra of P3HT:ICBA (black line), PDTP-DFBT:PC61BM (red line), PDTP-DFBT:PC71BM (blue line) blend. (c) J–V curve of P3HT:ICBA (black line), PDTP-DFBT:PC61BM (red line), PDTP-DFBT:PC71BM (blue line) under AM1.5G illumination from a calibrated solar simulator with an irradiation intensity of 100 mWcm2 (one Sun). (d) EQE of P3HT:ICBA (black line), PDTP-DFBT:PC61BM (red line), PDTP-DFBT:PC71BM (blue line)-based single cell devices.
