QUANTUM DOT FOR LIGHT EMITTING DIODE AND WHITE LIGHT EMISSION DEVICE USING SAME?‹

摘要

Disclosed are a quantum dot for light emitting diode and a white light emission device using the same. The quantum dot according to the present invention is a quantum dot generating wavelength conversion light converting excite light of the light emitting diode and is Cu1-xIn1-yGayS2/ZnS Core/Shell quantum dot (0.5≤x≤0.95, 0≤y1). By using Cu1-xIn1-yGayS2/ZnS Core/Shell quantum dot (0.5≤x≤0.95, 0≤y1), wide yellow luminescence band can be realized. Even when one type of quantum dot is used, white LED can be created through a blue LED combination, thereby enabling Cu1-xIn1-yGayS2/ZnS Core/Shell quantum dot (0.5≤x≤0.95, 0≤y1) according to the present invention to replace a bulk fluorescent substance such as YAG : Ce.;COPYRIGHT KIPO 2014