Writing and Erasing Encryption Information Based on Frustrated Lewis Pair Chemistry

Area of Science:

• Materials Science
• Chemistry
• Optoelectronics

Background:

• Lewis acid-base adducts offer tunable optical properties.
• Weak coordination bonds are crucial for dynamic information storage.
• Anticounterfeiting strategies require cost-effective and erasable solutions.

Purpose of the Study:

• To construct luminescent Lewis acid-base adducts using inkjet printing.
• To develop erasable anticounterfeiting information with tunable colors.
• To explore the B→N coordination bond for dynamic optical responses.

Main Methods:

• Inkjet printing of luminescent Lewis acid-base adducts.
• In situ postsynthesis for precise chemical control.
• Modulation of temperature and Lewis base concentration for erasure.

Main Results:

• Achieved tunable emission from deep-blue (407 nm) to orange-red (597 nm).
• Demonstrated the construction of luminescent quick response (QR) codes.
• Showcased erasable information storage through dissociation of B→N bonds or neutralization.

Conclusions:

• Inkjet-printed Lewis acid-base adducts provide a versatile platform for tunable luminescence and anticounterfeiting.
• The weak B→N coordination bond enables dynamic, erasable information encoding.
• This approach offers a cost-effective and precise method for advanced security features.