Other future quantum dot applications oanti counterfeiting capabilities inject dots into liquid mixtures fabrics polymer matrices etc ability to specifically control absorption and emission spectra to produce unique validation signatures almost impossible to mimic with traditional semi conductors. The colloidal quantum dots are irradiated with ultraviolet light due to quantum confinement quantum dots of different sizes emit light of different colors quantum dots are very small. Their highly tunable optical properties based on their size are fascinating leading to a variety of research and commercial applications including bioimaging solar cells leds diode lasers and transistors view all quantum dots products figure 1 fluorescence spectra of quantum dots with various sizes. Quantum dots are being used to produce miniature lasers for use in communications devices the advantage of these lasers will be high speed data transfer with low power consumption quantum dots can be used in tv or computer displays displays using quantum dots should be thinner lower power than current displays as well as able to be flexible