For 10 points, name these device that could potentially function in qubits and are also known as a nanocrystal semiconductor.
They can form from 3D islands generated during Stranski-Krastanov growth of strained systems. When they are in the Coulomb blockade region (*) tunneling in and out of these structures is prevented. Their optically excited form produces bound electron-hole pairs and weak lateral confinement causes their exciton binding energy to exceed their confinement energy. For 10 points, name these device that could potentially function in qubits and are also known as a nanocrystal semiconductor.
They can form from 3D islands generated during Stranski-Krastanov growth of strained systems.
{quantum dot} (accept {nanocrystal semiconductor} before mentioned)