Research / 2021 / Article / Fig 4

Research Article

Perovskite Solar Cells toward Eco-Friendly Printing

Figure 4

(a) Solar cell architecture. (b) Device performance distributions of 30 eco-printed and tox-spin-coated perovskite solar cells. (c) - curves of the champion cell for eco-printed and tox-spin-coated solar cells. (d) The external quantum efficiency (EQE) spectrum and the corresponding integrated current for eco-printed and tox-spin-coated perovskite solar cells. (e) The stabilized power output of the eco-printed champion cell measured at a fixed maximum power point (MPP) voltage as a function of time. (f) Comparison of stability of the corresponding nonencapsulated solar cells exposed to the ambient environment with 40-50% humidity in the dark at room temperature.