Method for generating white light
A white light and blue light technology, applied in the lighting field, can solve the problems of light color distortion, low color rendering index of white light, absorption/excitation/emission spectrum, thermal stability, chemical stability, aging decay rate inconsistency, etc., to achieve color coordinates and The color gamut is easy, the light color space is evenly distributed, and the effect of reducing the harm of blue light
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[0039] Experimental studies have shown that ZnO quantum dots doped with different group I elements have different luminescent properties. For example, high-concentration lithium-doped zinc oxide quantum dots [ZnO:Li QDs] can emit blue light radiation with a peak wavelength near 480nm; while low-concentration lithium-doped zinc oxide quantum dots [ZnO:Li QDs], or sodium-doped zinc oxide quantum dots [ZnO:Na QDs], or potassium-doped zinc oxide quantum dots [ZnO:K QDs] have green radiation with a peak wavelength around 560nm.
[0040]In this example, [ZnO:Li QDs] with blue light radiation characteristics and [ZnO:Na QDs] with green light radiation characteristics were prepared by sol-gel method, and the molar mass ratio between the reactants was changed by adjusting the The particle size of the prepared zinc oxide quantum dots is adjusted, so that the luminescent spectrum of the zinc oxide quantum dots is shifted.
[0041] Experimental process: Alcohol solutions of zinc acetate ...
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