Most GQDs available today are based on bulk Graphene sources which in turn are based on Graphite as a raw material. This makes GQDs extremely expensive, with high cost production processes manufacturing very small amounts of GQDs.
Dotz Nano Ltd. technological production of GQDs is based on a process developed by Rice University’s Prof. James Tour, one of the leading, if not premier, scientists and listed as one of the 50 most influential scientists in the world today. This technology sources GQDs from cheap Coal in a much cheaper and efficient production process.
With their characteristics, Dotz Nano Ltd GQDs resist photobleaching, a known and problematic trait of fluorescent spectroscopy. Low cost of the raw material will also be a benefit. High quality Graphite is $2,000 per ton while cheaper graphite is $800 per ton from China. Coal is $10 to $60 per ton. Coal is the cheapest for producing GQDs, and the process offers a 20 percent production yield. The general industry consensus is that this discovery can really change the quantum dot industry.