QUANTUM DOT DEVICE HAVING DIFFERENT KINDS OF QUANTUM DOT LAYERS

摘要

PURPOSE: A quantum dot device including two kinds of quantum dot layers is provided to improve the efficiency of the quantum dot device by controlling the speed of an electron transfer or the electron distribution in the device. CONSTITUTION: A quantum dot device includes a cathode layer, an anode layer(110), an active layer(150), and an electron transfer control layer(130). The active layer is arranged between the cathode layer and the anode layer and comprises of quantum dot layers. The electron transfer control layer is arranged around the active layer and comprises of two kinds of quantum dot layers which has an energy potential difference from an energy potential of the quantum dot layer comprising of the active layer.