Mn I--VI Mn-doped I--VI type white light-emitting quantum dots for white light-emitting diode method for synthesizing the same and white light-emitting diode using the same

摘要

A quantum dot capable of emitting white light by using a single kind and capable of spectrum control so as to realize various color temperatures, a method for manufacturing the same and white light emitting diode using the same. A quantum dots according to the present invention is a core quantum dots formed by doping I-III-VI-based ternary system Cu-Ga-S or Ag-Ga-S, or I-III-VI-based quaternary system X-In-Ga-S or Zn-X-Ga-S (X = Cu, Ag) with Mn to (X = Cu, Ag) and a white light emitting quantum dot having a ZnS shell. The white light emitting diode according to the present invention is formed by integrating such quantum dots in a light source device such as a near-ultraviolet LED or a blue LED.