Fig. 3: Modeled spatial distribution of |E|2 in glass/ITO/PTAA/FA0.67MA0.33PbI2.85Br0.15/PCBM/AZO/back electrode p–i–n devices. | Nature Communications

Fig. 3: Modeled spatial distribution of |E|2 in glass/ITO/PTAA/FA0.67MA0.33PbI2.85Br0.15/PCBM/AZO/back electrode p–i–n devices.

From: Revealing defective interfaces in perovskite solar cells from highly sensitive sub-bandgap photocurrent spectroscopy using optical cavities

Fig. 3: Modeled spatial distribution of |E|2 in glass/ITO/PTAA/FA0.67MA0.33PbI2.85Br0.15/PCBM/AZO/back electrode p–i–n devices.

a With a metal (Al) back electrode. b With a transparent (ITO) back electrode. c With a transparent (ITO) back electrode, an additional optical spacer (MgF2), and a back reflector (Ag). The thickness of the MgF2 layer used in the simulation shown was 100 nm.

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