Figure 5.
Performance of the best device with the bi‐layered ETL. a) J–V curve of the champion cell. b) EQE and integrated J sc. c) Long‐term stability of the device without encapsulation.
Performance of the best device with the bi‐layered ETL. a) J–V curve of the champion cell. b) EQE and integrated J sc. c) Long‐term stability of the device without encapsulation.