| abstract |
The present invention is the basis for the production of fluorescent materials, micro LEDs, white light sources, single-electron transistors, nonlinear optical equipment, photosensitive devices, photovoltaic devices. At the heart of the process is a method for synthesizing semiconductor quantum dots, which synthesizes nanocrystalline cores from chalcogen-containing precursors and precursors and organic solvents containing second and fourth group metals. The present invention uses (aminoalkyl) trialkoxysilanes as surface modifiers. Maintain a constant temperature within the range of 150 ~ 250 ℃ and leave for 15 seconds to 1 hour. The reaction mixture containing the nanocrystalline cores is further treated with ultraviolet light for 1 to 10 minutes and ultrasonic for 5 to 15 minutes. The present invention improves the light stability of the semiconductor quantum dots by 34%, maintains or increases the quantum yield, and has diffusibility in the nonpolar solvent and the polar solvent. |