Study on Nanocrystals

A nanocrystal (NC) is a single crystal having a diameter of a few nanometers. A NCQD is a nanocrystal that has a smaller band gap than the surrounding material. The easiest way to produce NCQDs is to mechanically grind a macroscopic crystal. Currently NCQDs are very attractive optical applications because their color is directly determined by their dimensions. The size of the NCQDs can be selected by filtering a larger collection of NCQDs or by tuning the parameters of a chemical fabrication process.