Fig. 3: Capture carrier transport with photoluminescence (PL) imaging. | Nature Communications

Fig. 3: Capture carrier transport with photoluminescence (PL) imaging.

From: Benign ferroelastic twin boundaries in halide perovskites for charge carrier transport and recombination

Fig. 3

a Polarized optical microscope image, (b) PL intensity image and (c) composite image of a MAPbI3 multi-crystal with GBs. The blue dashed line indicates the position of GB. d Polarized optical microscope image, (e) PL intensity image and (f) composite image of a MAPbI3 single crystal with TBs. The PL excitation position is indicated by the blue circle.

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