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. 2021 Sep 22;12:5566. doi: 10.1038/s41467-021-25937-1

Fig. 3. Experimental positron lifetime spectra and positron implantation profiles.

Fig. 3

a Lifetime spectra for a 200 nm MAPbI3 film (Oxford), (blue) measured with 2 keV positron implantation energy and for a MAPbI3 crystal (red) at 4 keV. b Markovian positron implantation depth profiles, the mean depths are shown with dashed lines.