CORE TECHNOLOGY
Quantum dot nanomaterials
Quantum dots, a kind of nanomaterials which shows obvious quantum confinement effects, usually have a diameter of 1-10 nm. Smaller size, larger banggap. By tuning its size during synthesis, its bandgap, absorption, and photoluminence can be controlled precisely, leading to great application potential in many optoelectronic industries.
Quantum confinement effect
According to the Exclusive law, it is impossible to have the same energy level on the same orbit of electrons. Therefore, the energy levels will be splitted into energy bands. Smaller size of QDs, less electron energy level splitting, narrower bands. This will result in larger band gap between the conduction and valence band edges.
Common semicondutors have constant bandgap, while QDs could have a tunable bandgap despite of its same component. Precise control over its band structures gives a variety of choices of QDs into applications.