Fig. 4 | Nature Communications

Fig. 4

From: Tailoring vertical phase distribution of quasi-two-dimensional perovskite films via surface modification of hole-transporting layer

Fig. 4

Photovoltaic performance of devices with tailored vertical distribution. a Device structure of the Q-2D perovskite solar cells; b J–V characteristics of the cells with PEDOT:PSS and BrB-PEDOT:PSS; c Photovoltaic parameters of 55 devices for each HTL; (Boxes, square symbols, and horizontal bars indicate 25/75 percentile, mean, and min/max values, respectively). d EQE spectra of Q-2D perovskite solar cells with different PEDOT:PSS and BrB-PEDOT:PSS HTLs

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