Highly bright solid-state carbon dots for efficient anticounterfeiting
Weihua Li, Yuanyuan Han, Lihua Wang, Gurpreet Singh Selopal, Xiaohan Wang, Haiguang Zhao
Abstract
formation of the C-dot/Ca-complex by vacuum heating in the presence of boric acid. The as-prepared C-dots have high quantum yields (QYs) in the range of 40-67% with temperature-dependent photoluminescent (PL) properties. As a proof of concept, the as-synthesized C-dots were used to produce a flexible anti-counterfeiting code and showed high-level security. This highlights the potential of C-dots in solid-state information, anti-information encryption and anti-counterfeiting.
Topics & Concepts
Solid-stateCarbon fibersMaterials scienceNanotechnologyState (computer science)Chemical engineeringChemistryComputer sciencePhysical chemistryComposite materialEngineeringAlgorithmComposite numberCarbon and Quantum Dots ApplicationsNanocluster Synthesis and ApplicationsQuantum Dots Synthesis And Properties