2c–e shows that there is no change in the XRD peak FWHM, suggesting that the precursor (untransformed) and perovskite (transformed) crystallites are the same size. This behaviour suggests that in the nucleation and growth of the perovskite from the precursor perovskite, once nucleation takes ...
Figure S1 shows the XRD data for 0.85FA and 0.95FA, the bromine content leads to the increase of the diffraction angle of the diffraction peak18. THz radiation pro- vides a direct measurement of picosecond time scale photocurrent within the HOIPs film, as shown in Fig. 1a. Under ...
h, The XRD patterns of the reference, 2% Fo-FAPbI3 and 4% Fo-FAPbI3 perovskite films. Peaks labelled with an asterisk are assigned to the FTO substrates, which can be seen for the 4% sample owing to the lower intensity of the perovskite reflections. i, Integrated one-dimensional ...
(MAPbBr3)0.15. FigureS1shows the XRD data for 0.85FA and 0.95FA, the bromine content leads to the increase of the diffraction angle of the diffraction peak18. THz radiation provides a direct measurement of picosecond time scale photocurrent within the HOIPs film, as shown in Fig.1a. Under ...
XRD patterns of (FAPbI3)0.8(MAPbBr3)0.2 perovskite films following annealing at various temperatures. vFtaihgreiurormFtuFeeisamiggl3utlpue.yremreraeap3nXt.eu4nRXrreaeRDpastlDur.eerdpsepeasaant.tttttevesrrannrSssiEooMuof sf(Ftie(AmFmPAapbgPIee3br)s0aI.83t(o)uM0fr.8Ae(sPMF.bATABhPrPe3b...
The crystal structure, surface morphology and optical properties were characterized by X-ray diffraction (XRD), field-emission scanning electron microscopy (FESEM) photoluminescence and UV–visible spectrometry. According to XRD, the crystalline structure of FAPbI3 was found in the orientation of the ...
(b) The enlarged XRD diagram of α-FAPbI3 film from Figure 4a. (c) Enlarged image of diffraction peak of (001) crystal plane from Figure 4a. It can be seen from Figure 4 that a large amount of lead iodide remained in the perovskite films. During the operational process of the ...