The goal of my research is to advance the physical foundations of devices and develop new kinds of devices. As devices have been made smaller, quantum effects have become important. These effects already influence the operation of commercial devices. We are investigating new device designs, which will take advantage of quantum mechanical processes to provide a route to further device scaling and performance improvements. For example, “quantum dots” – a few hundred or thousand molecules of one material embedded in another – exhibit a range of useful properties for new types of semiconductor emitters and detectors.