Quantum dot particles, manufacturing method thereof, quantum dot particle group and display device
A technology of quantum dots and particle groups, which is applied in the fields of quantum dot particles and their manufacturing, quantum dot particle groups and display devices, can solve the problems that the effectiveness is difficult to commercialize, and the technology of core particle size is difficult to ensure reproducibility, etc., and achieve uniformity. Effects of particle size, excellent quantum yield, excellent quality and durability
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preparation example 1
[0085] Preparation Example 1: Preparation of Zinc Precursors
[0086] To a 3-neck 5L glass reactor equipped with a thermometer, magnetic stirrer, reduced pressure vacuum and heating mantle was added 550.44 g (3 mol) zinc acetate and 1779.56 g (6.3 mol) oleic acid and heated while stirring to The temperature rose to 170°C. Thereafter, the zinc precursor zinc oleate compound was prepared while removing acetic acid produced as a by-product by vacuum reducing the pressure to 10 mTorr. After the pressure was reduced at 170°C for 3 hours, it was confirmed that no by-product acetic acid was discharged to the outside, and the reaction was terminated.
preparation example 2
[0087] Preparation Example 2: Preparation of Zinc Oxide Cluster (I)
[0088] To a 3-neck 5L glass reactor equipped with a thermometer, magnetic stirrer, reduced pressure vacuum and heating mantle was added 550.44 g (3 mol) zinc acetate and 1779.56 g (6.3 mol) oleic acid and heated while stirring to The temperature was raised to 180°C. Thereafter, the zinc precursor zinc oleate compound was prepared while removing acetic acid produced as a by-product by vacuum reducing the pressure to 10 mTorr. After depressurizing at 180° C. for 3 hours, it was confirmed that no by-product acetic acid was discharged to the outside, thereby releasing the pressure. Thereafter, the temperature was raised to 330° C. by heating while introducing argon gas, and after the reaction for 2 hours, it was confirmed that the zinc precursor changed from a transparent state to a haze state, thereby terminating the reaction.
preparation example 3
[0089] Preparation Example 3: Preparation of Zinc Oxide Cluster (II)
[0090] To a 3-neck 5L glass reactor equipped with a thermometer, magnetic stirrer, reduced pressure vacuum and heating mantle was added 550.44 g (3 mol) zinc acetate and 1779.56 g (6.3 mol) oleic acid and heated while stirring to The temperature rose to 170°C. Thereafter, the zinc precursor zinc oleate compound was prepared while removing acetic acid produced as a by-product by vacuum reducing the pressure to 10 mTorr. After the pressure was reduced at 170°C for 3 hours, it was confirmed that no by-product acetic acid was discharged to the outside, thereby releasing the pressure. Thereafter, the temperature was raised to 260° C. by heating while introducing argon gas, and after the reaction for 5 hours, it was confirmed that the zinc precursor changed from a transparent state to a haze state, thereby terminating the reaction.
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