Fig. 5 | Nature Communications

Fig. 5

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

Fig. 5The alternative text for this image may have been generated using AI.

Charge recombination and dynamics of the Q-2D perovskite films with tailored vertical distribution. a J–V characteristics of the devices with PEDOT:PSS and BrB-PEDOT:PSS measured in the dark and their fit with one-diode equivalent circuit model; b EQEEL as a function of voltage of the devices with PEDOT:PSS and BrB-PEDOT:PSS HTL (functioning as light-emitting diodes). The inset shows EL emission of a device with BrB-PEDOT:PSS HTL; c TA kinetics probed at 740 nm under back-excitation at 480 nm, showing the electron transfer kinetics; d TA kinetics probed at 605 nm under front-excitation at 740 nm, showing the hole transfer kinetics

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