| abstract |
The invention discloses a long-service-life quantum dot fluorescent composite film for an LED plant growth lamp and a preparation method thereof. The quantum dot fluorescent composite film comprises a quantum dot layer, protection base material layers and protection adhesive layers, wherein the upper surface and the lower surface of the quantum dot layer are covered by the protection base material layers, and four side surfaces of the quantum dot layer are covered by the protection adhesive layers. The LED plant growth lamp, which is equipped with a blue-light, purple-light or ultraviolet-light LEDtto act as a light source, provided with the quantum dot fluorescent composite film can emit mixed light of red light and blue light. The wavelength, the half-peak width and the relative strength of the red light and the blue light emitted by the plant growth lamp can be changed through adjusting the type, the concentration and the dosage of quantum dots in the fluorescent composite film, thereby achieving requirements which are the most appropriate for plant growth. |