Fig. 2 | Nature Communications

Fig. 2

From: Conversion of invisible metal-organic frameworks to luminescent perovskite nanocrystals for confidential information encryption and decryption

Fig. 2

Optical properties of MAPbX3 NCs@Pb-MOF. a Steady-state PL emission spectra of Pb-MOF (black line) and MAPbBr3 NCs@Pb-MOF (green line). b Time-resolved PL decay curve of MAPbBr3 NCs@Pb-MOF detected at 527 nm with excitation of 450 nm. c Optical images under ambient light and 365 nm UV lamp and d steady-state PL emission spectra of MAPbX3 NCs@Pb-MOF. (1: MAPbCl3, 2: MAPbCl2Br, 3: MAPbClBr2, 4: MAPbBr3, 5: MAPbBr2I, 6: MAPbBrI2, 7: MAPbI3)

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