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Preparation method and device of in-situ synthesized perovskite quantum dot coded resin microspheres

A resin microsphere, in-situ synthesis technology, applied in the preparation of microspheres, microcapsule preparations, chemical instruments and methods, etc., can solve the problems of uncontrollable, harsh synthesis conditions, inaccurate preparation methods of perovskite, etc., to prevent Leakage, expanding the number of codes, and solving the effect of heavy metal pollution

Inactive Publication Date: 2021-03-16
NANJING DRUM TOWER HOSPITAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The first purpose of the present invention is to address the deficiencies of the prior art, to provide a method for preparing in-situ synthesized perovskite quantum dot-coded resin microspheres, to solve the problem of inaccurate and uncontrollable traditional perovskite preparation methods, and the synthesis conditions Harsh shortcomings;

Method used

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  • Preparation method and device of in-situ synthesized perovskite quantum dot coded resin microspheres
  • Preparation method and device of in-situ synthesized perovskite quantum dot coded resin microspheres
  • Preparation method and device of in-situ synthesized perovskite quantum dot coded resin microspheres

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preparation example Construction

[0035] The present invention provides a method of preparing a calcium titanium-based quantum point encoding a resin microsphere in situ synthesis, through a microfluidic device, an in situ synthesis of calcium titanium dots; The device is introduced into the resin solution and aqueous solution with a surfactant; the resin solution precipate the calcium titanium mine dots, disperse the perovskite in the resin solution; aqueous solution with a surfactant clipped the resin solution to form an encapsulation The resin droplet template of the calcium titanium mine dot; finally cures the resin droplet template to obtain a calcium titanium mine dot encoding a resin microsphere. The method of the invention specifically includes the steps of:

[0036] S1, build a microfluidic device

[0037] Take a plurality of capillaries, form a capillary array, connect the capillary array to one end of the mix tube, and nested within the mix tube; connect the other end of the mix tube to one end of the d...

Embodiment 1

[0050] In situ synthesized perovs and titanium mine quantum dots encodes resin microspheres, including the following steps:

[0051] (1) Preparation of microfluidic device

[0052] Refer figure 1 The seven-well capillary array 1 is selected as the inlet of the pumped raw material, and the seven-well capillary array 1 employed is comprised of 1 mm and a capillary having an inner diameter of 0.58 mm. The capillary array 1 is heated on the alcohol lamp and then pulled it to 100 microns by hand. The fine end of the capillary array 1 is then nestled in the mix tube 2 that is manually pulled to the cone, and the mix tube 2 tapered tube diameter is 100 microns. The mixing tube 2 is assembled in a coaxial manner in a dispersion tube 3 having a tapered end, and the dispersion tube 3 tapered tube diameter is 200 microns. After the tapered end of the dispersion tube 3 is 1 mm, the inner diameter is 0.58 mm, the various tubes and the injection needle 6 are fixed, and the microfluiding device...

Embodiment 2

[0056] In situ synthesized perovs and titanium mine quantum dots encodes resin microspheres, including the following steps:

[0057] (1) Preparation of microfluidic device

[0058] Refer figure 2 The seven-well capillary array is selected as the inlet of the pumped raw material, and the seven-well capillary array employed is comprised of a capillary having an outer diameter of 1 mm and an inner diameter of 0.58 mm. The capillary array is heated on the alcohol lamp and then pulled it with a hand to 120 microns. The fine end of the capillary array is then nestled in another manually pulled to the conical mix tube, and its tapered end tube diameter is 120 microns. The mixing tube is mounted in a discharged tube similar to the same tapered end, and the dispersion tube tapered tube diameter is 120 microns. After inserting the dispersion tube tapered end into a collection tube having an outer diameter of 1 mm, an inner diameter is 0.58 mm, and the various tubes and injection needles ar...

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Abstract

The invention provides a preparation method of in-situ synthesized perovskite quantum dot coded resin microspheres. Perovskite quantum dot raw materials are introduced through a micro-fluidic device to synthesize perovskite quantum dots, a resin solution and an aqueous solution with a surfactant are introduced into the micro-fluidic device, perovskite is dispersed in the resin solution, the aqueous solution with a surfactant shears the resin solution to form a resin droplet template encapsulating the perovskite quantum dots, and finally, the resin droplet template is cured to obtain the perovskite quantum dot coded resin microspheres. The invention further provides a device capable of realizing the method. The perovskite quantum dot coded microspheres prepared by the method have good uniformity and monodispersity, the size is controllable, and the internal perovskite quantum dot coded emission wavelength in the preparation process is controllable. The method can be realized at normal temperature, the perovskite quantum dots cannot leak to cause unstable coding and heavy metal ion pollution after being packaged by resin, and the repeatability is good.

Description

Technical field [0001] The present invention belongs to the technical field of biomaterials, and more particularly to an in situ synthesized perovs and titanium mine quantum dot encoding resin microspheres, which can realize in situ synthesis of calcium titanium mine dots in the microfluidic device, and with a resin It is packaged to prevent chemical toxicity and leakage of coding elements, providing a new type of material for biomedical applications. Background technique [0002] Compared with the conventional semiconductor quantum dots, the calcium titanium-titanium mine dots have low cost, high color purity, and the photoluminescent quantum yield is close to 100%, which is widely used in light-emitting diodes, solar cells, and other optoelectronic devices. Become the most popular nanomaterials. A variety of methods for preparing calcium titanium mine points have been developed, such as template synthesis, ligand-assisted re-precipitation, thermal injection, wet ball mill, and ...

Claims

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Application Information

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IPC IPC(8): B01J19/00B01J13/02
CPCB01J19/0093B01J13/02B01J2219/00993Y02E10/549
Inventor 赵远锦卞非卡王月桐张大淦商珞然池俊杰
Owner NANJING DRUM TOWER HOSPITAL
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