10.1021/acsami.8b06901.s001
Yong-Mei Wang
Yong-Mei
Wang
Xue-Tao Tian
Xue-Tao
Tian
Hui Zhang
Hui
Zhang
Zhong-Rui Yang
Zhong-Rui
Yang
Xue-Bo Yin
Xue-Bo
Yin
Anticounterfeiting
Quick Response Code with Emission Color of Invisible Metal–Organic
Frameworks as Encoding Information
American Chemical Society
2018
anticounterfeiting encoding strategy
Encoding Information Counterfeiting
information storage unit
RGB
trichromatic NMOFs inks
Anticounterfeiting Quick Response Code
excitation
QR codes pattern
UV
light-emitting boxes
emission colors
2018-06-08 00:00:00
Journal contribution
https://acs.figshare.com/articles/journal_contribution/Anticounterfeiting_Quick_Response_Code_with_Emission_Color_of_Invisible_Metal_Organic_Frameworks_as_Encoding_Information/6635537
Counterfeiting
is a global epidemic that is compelling the development of new anticounterfeiting
strategy. Herein, we report a novel multiple anticounterfeiting encoding
strategy of invisible fluorescent quick response (QR) codes with emission
color as information storage unit. The strategy requires red, green,
and blue (RGB) light-emitting materials for different emission colors
as encrypting information, single excitation for all of the emission
for practicability, and ultraviolet (UV) excitation for invisibility
under daylight. Therefore, RGB light-emitting nanoscale metal–organic
frameworks (NMOFs) are designed as inks to construct the colorful
light-emitting boxes for information encrypting, while three black
vertex boxes were used for positioning. Full-color emissions are obtained
by mixing the trichromatic NMOFs inks through inkjet printer. The
encrypting information capacity is easily adjusted by the number of
light-emitting boxes with the infinite emission colors. The information
is decoded with specific excitation light at 275 nm, making the QR
codes invisible under daylight. The composition of inks, invisibility,
inkjet printing, and the abundant encrypting information all contribute
to multiple anticounterfeiting. The proposed QR codes pattern holds
great potential for advanced anticounterfeiting.