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. 2020 Dec 17;10:22260. doi: 10.1038/s41598-020-79348-1

Figure 3.

Figure 3

(a) Photoluminescence (PL) and (b) absorption spectra of cells with the structure FTO/c-TiO2/meso-TiO2/PCBM/MAPbBr3/PMMA and FTO/c-TiO2/meso-TiO2/MAPbBr3.