Fig. 2: Device performances and representative energy loss analysis.
From: On the role of asymmetric molecular geometry in high-performance organic solar cells
a J − V curves of OPVs under optimal conditions. b Voc and Jsc values of different groups of isomers (Group No 1: C11-BO-SF and C11-BO-AF, Group No 2: C11-BO-SCl and C11-BO-ACl, Group No 3: C11-BO-SBr and C11-BO-ABr, Group No 4: 2BO-SCl and 2BO-ACl, Group No 5: BO-EH-SCl and BO-EH-ACl, and Group No 6: BO-EH-SBr and BO-EH-ABr). c EQE curves. d Jph−Veff curves. e schematic diagram for energy losses and f EQEEL curves of BO-EH-SCl and BO-EH-ACl-based OPVs. sEQE and EL spectra of the g BO-EH-SCl and h BO-EH-ACl-based devices.
