Graphene Quantum Dots (GQDs) and Carbon Dots (CDs) are extremely small particles, typically at the nanoscale. The dots’ size and composition can be carefully manipulated in order to fine-tune their photoluminescence. These materials are particularly useful because of their tunable photoluminescence over a wide spectrum range, and prolonged photo- and thermal-stability. GQDs/CDs are favorable alternatives to fluorescent dyes.
Made from carbon sources, Graphene Quantum Dots (GQDs) are a non-toxic advanced material
The fluorescence colour can be tuned by changing the size, chemistry, or doping – creating unique optical fingerprints
GQDs absorb photons of light, then re-emit photons at a different wavelength. For example GQDs fluoresce in visible spectrum when exposed to UV light
GQDs have multiple potential applications, including biomedical, in-product authentication, tracing, materials field testing and more