Fig. 5: Illustration of the multi-level information encryption and anti-counterfeiting. | Nature Communications

Fig. 5: Illustration of the multi-level information encryption and anti-counterfeiting.

From: Finely manipulating room temperature phosphorescence by dynamic lanthanide coordination toward multi-level information security

Fig. 5

a The schematic diagram of the information writing/erasing cycles and photographs of printed pattern taken under UV light on/off. b Demonstration of misleading information with disguised arrow pattern and displaying opposite direction upon creasing UV light. c Illustration of the spatial-time-resolved anti-counterfeiting by using different 4TPYBOH@PVA–Ln materials with lifetime gradients.

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