Dual-core fibers wrapping perovskite quantum dots, and preparation method and device of dual-core fibers
A perovskite and quantum dot technology, applied in chemical instruments and methods, luminescent materials, etc., can solve the problems of high requirements for preparation methods, easy oxidation, poor product stability, etc., and achieve uniform structure, low cost, and simple preparation methods. Effect
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[0033] The invention provides a method for preparing a dual-core fiber wrapped with perovskite quantum dots, comprising the following steps:
[0034] S1. Build a microfluidic device
[0035] Select glass capillaries, glass slides and needles to establish a microfluidic coaxial channel network. Specifically, take several capillaries to prepare two sets of capillary arrays, two sets of reaction tubes and one dispersion tube; connect two sets of capillary arrays to two sets of reaction tubes. One end of the tube is nested in the reaction tube; the other end of the two sets of reaction tubes is connected to one end of the dispersing tube and nested in the dispersing tube; the other end of the dispersing tube is nested in the collecting tube, and the collection liquid is added into the collecting tube, and the micro-flow The control device is built;
[0036] S2. Preparation of dual-core fibers wrapped with perovskite quantum dots
[0037] Pump different perovskite quantum dot pre...
Embodiment 1
[0044] refer to Figure 1~2 , the present embodiment provides a device for preparing dual-nuclear fibers wrapped with perovskite quantum dots, including a first capillary array 13, a second capillary array 14, a first reaction tube 15, a second reaction tube 16, and a dispersion tube 18 , collection tube 19 and liquid inlet power device; The first capillary array 13 and the second capillary array 14 are drawn by seven capillaries; head shape) are respectively connected and nested at the liquid inlet ends of the first reaction tube 15 and the second reaction tube 16, and the liquid outlet ends of the first reaction tube 15 and the second reaction tube 16 (the ports are pointed) are connected and nested At the liquid inlet end of the dispersing pipe 18, the liquid outlet end of the dispersing pipe 18 is arranged in the collecting pipe 19 and is located below the liquid level; the number of the liquid inlet power devices is thirteen, and the liquid inlet power devices include a l...
Embodiment 2
[0052] The device provided in this example for preparing a dual-core fiber wrapped with perovskite quantum dots is the same as that in Example 1.
[0053] The preparation method of the dual-core fiber wrapped perovskite quantum dots in this embodiment is as follows:
[0054] S1. Build a microfluidic device
[0055] Referring to Example 1
[0056] S2. Preparation of dual-core fibers wrapped with perovskite quantum dots
[0057] Push injection methylammonium hydrobromide solution to a liquid inlet in the first capillary array 13 by the second liquid inlet power device 2, and enter another liquid in the first capillary array 13 by the fifth liquid inlet power device 5 Mouth injection lead bromide solution; By the 9th liquid inlet power device 9 to a liquid inlet in the second capillary array 14 injection methylammonium hydroiodide solution, by the eleventh liquid inlet power device 11 to the second Another liquid inlet in the capillary array 14 injects lead bromide solution; F...
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