Quantum Dots (IMAGE) University of Leeds Caption Quantum dots are fluorescent crystals in which the color of the emitted light is dependent on the size of the crystal. Credit Richard E. Cruise, University of Leeds Usage Restrictions Credit: Richard E. Cruise, University of Leeds License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.