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Quantum dot nanomaterial synthetic apparatus

A technology of nanomaterials and synthesis devices, applied in the field of quantum dots, can solve problems such as complexity, affecting the quality of quantum dots, and the inability to expand quantum dot production on a large scale, so as to simplify operations and improve quantum yields

Inactive Publication Date: 2016-07-13
刘光 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, CdO needs to be pre-treated. After reacting with oleic acid and other ligands, the generated water can be removed in a vacuum before it can be used. This operation is more complicated, and oleic acid and other ligands may form dimers or trimers, which affects quantum point mass
[0004] The synthesis conditions of quantum dots are very demanding, and a slight change in a certain factor may have a huge impact on the quality of quantum dots. Because of this, the production of quantum dots has not been able to expand on a large scale, which greatly hinders the large-scale application of quantum dots

Method used

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  • Quantum dot nanomaterial synthetic apparatus
  • Quantum dot nanomaterial synthetic apparatus
  • Quantum dot nanomaterial synthetic apparatus

Examples

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Embodiment 1

[0015] Such as figure 1 figure 2 As shown, the reaction device includes a reaction part 1, a stirring part 2, a feed part 3, a gas protection part 4, a tail liquid collection part 5, a heating part 6 and a lifting part 7, the reaction part 1 is located above the heating part 6, and the reaction part 1 A stirring part 2, a feeding part 3, a gas protection part 4 and a tail liquid collecting part 5 are arranged on the top, and the heating part 6 is located on the lifting part 7. The reaction part 1 is equipped with a first reactant, solvent and reflux, the feed part 3 is equipped with a second reactant, and the gas protection part 4 is filled with an inert gas. The tail liquid collecting part 5 includes a condensation reflux device 8 , a collection bottle 9 and a gas outlet 10 ; the condensation reflux device 8 is one of gas condensation and liquid condensation. The gas inlet of the gas protection part 4 is placed below the liquid surface of the reaction part 1, the gas outle...

Embodiment 2

[0020] Such as image 3 As shown, two reaction devices are connected in parallel to form a two-row row. Wherein the stirring part 2 is fixed in the same box, the heating part 6 is combined together, and the lifting part 7 is combined together, and can be lifted simultaneously.

Embodiment 3

[0022] Such as Figure 4 As shown, four reaction devices are connected in parallel to form a quadruple row. Wherein the stirring part 2 is fixed in the same box, the heating part 6 is combined together, and the lifting part 7 is combined together, and can be lifted simultaneously.

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Abstract

The invention is intended to provide a quantum dot nanomaterial synthetic apparatus enabling large-scale production of a high-quality quantum dot nanomaterial, characterized by comprising one or more reaction units; each reaction unit comprises a reaction portion, a stirring portion, a feeding portion, a gas protection portion, a tail liquid collection portion, a heating portion and a lifting portion, the reaction portion resides above the heating portion, the stirring portion, the feeding portion, the gas protection portion and the tail liquid collection portion are disposed on the reaction portion, and the heating portion resides on the lifting portion; the tail liquid collection portions in the reaction units have two functions: first, serving as an inert gas outlet to keep constant pressure in a reaction system; second, recycling a first reaction product and low-boiling-point impurity in a solvent.The low-boiling-point impurity in the reaction product and low-boiling-point impurity produced during reaction can be cleared, and quantum yield of quantum dots can be increased; strict vacuum pretreatment is not required, and the apparatus is suitable for large-scale production.

Description

technical field [0001] The invention belongs to the technical field of quantum dots, in particular to a synthesis device for quantum dot nanomaterials. Background technique [0002] Quantum dots are nanoparticles composed of II-VI or III-V elements. Quantum dots are also called semiconductor nanocrystals. When stimulated by light or electricity, quantum dots will emit light in a certain wavelength range. The range and intensity of the emission spectrum are determined by the composition, size and shape of quantum dots. This feature enables quantum dots to be used as luminescent materials in biological detection, anti-counterfeiting, LED, display and optoelectronic devices and other fields. [0003] At present, most of the methods for synthesizing quantum dots adopt organic high-temperature synthesis method. During the whole synthesis process, the operation is cumbersome and pollutes the environment. Peng et al. replaced the highly toxic and poorly stable dimethyl cadmium wi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J19/18C09K11/54
Inventor 刘光刘海鹏
Owner 刘光
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