Researchers use quantum dots to create high resolution three-layer sensor

Schematic showing how different colored light is absorbed by the layered quantum dot photodetector. Researchers in the US and Korea are developing three-layered sensors based on quantum dots that promise low-cost, flexible, high-dynamic range sensors without the need for demosaicing. Quantum dots are nano-scale semiconducting crystals whose size and composition can be used to 'tune' the frequency of light they absorb or emit. Researchers at Northwestern University, Illinois, and three South Kore...