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Preparation method of zno/ag nano hybrid electron transport film obtained by electrospinning

An electrospinning method and electron transmission technology, applied in nanotechnology, nanotechnology, semiconductor/solid-state device manufacturing, etc., can solve the problems of complex equipment, low production efficiency, and high cost

Active Publication Date: 2021-05-14
QINGDAO UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

There are many methods for preparing ZnO electron transport thin films, the most common ones are pulsed laser deposition, magnetron sputtering, spray pyrolysis, electrochemical deposition, etc., but these methods are not only complicated in equipment, but also low in production efficiency and higher cost

Method used

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  • Preparation method of zno/ag nano hybrid electron transport film obtained by electrospinning
  • Preparation method of zno/ag nano hybrid electron transport film obtained by electrospinning
  • Preparation method of zno/ag nano hybrid electron transport film obtained by electrospinning

Examples

Experimental program
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Effect test

Embodiment 1

[0038] The preparation of the ZnO-Ag nano electron transport thin film includes step 1 and step 2.

[0039] Step 1, the preparation of Ag nanowires, including the following sub-steps:

[0040] Step 1.1, take 0.25g of PVP and add it to 6ml of ethylene glycol and stir until dissolved to obtain a PVP solution;

[0041] Step 1.2, take 0.1g of AgNO 3 Add to the same amount of ethylene glycol solution as above and stir until dissolved to obtain AgNO 3 solution;

[0042] Step 1.3, Preheat the PVP solution at 170°C for 1 hour, then take the above AgNO 3 The solution was added into the PVP solution at a rate of 6 mL / min, and the reaction was continued for 10 min; the Ag nanowire sol was obtained after the reaction was completed. The obtained Ag nanostructures are as diagram 2-1 with Figure 2-2 As shown, it can be seen that the width of the silver nanowires is about 20 nanometers.

[0043] Step 2, using the electrospinning method to prepare ZnO / Ag nano-hybrid electron transport...

Embodiment 2

[0049] In addition to the AgNO in step 1.2 3 Except that the addition amount of ZnO-Ag nano-hybrid electron transport film was prepared by the same method as in Example 1 except that the addition amount was changed to 0.2 parts by weight.

Embodiment 3

[0051] In addition to the AgNO in step 1.2 3 Except that the addition amount of ZnO-Ag nano-hybrid electron transport film was prepared by the same method as in Example 1 except that the addition amount was changed to 0.14 parts by weight.

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Abstract

The invention provides a preparation method for obtaining ZnO / Ag nano-hybrid electron transport film by electrospinning method, specifically, adding a certain proportion of Ag nanowire sol solution into the mixed aqueous solution of zinc acetate and PVP, and fully mixing to obtain Uniform Zn(CH 3 COO) 2 / Ag wire / PVP mixed spinning solution; through the electrospinning method, the spinning solution is spun into nanoscale ZnO / Ag / PVP nanofibers, and the nanofibers are stacked into nanoscale films. By controlling the spinning time, Control the thickness of the film; the ZnO / Ag / PVP nanofiber film is calcined at high temperature to remove the polymer PVP, and obtain a ZnO / Ag nano-hybrid electron transport film with high conductivity. The preparation method has simple process and easy operation, and the prepared nanofibers can obtain very good morphology and structure. The ZnO / Ag nano-hybrid electron transport thin film prepared by the method can be used as an electron transport layer and applied in a polymer solar cell, so that the photoelectric conversion performance of the cell can be increased by more than 10%.

Description

technical field [0001] The invention relates to the field of preparation of nano-hybrid materials, in particular to a preparation method for obtaining ZnO / Ag nano-hybrid electron transport films by electrospinning, which is applied to polymer solar cell devices. Background technique [0002] Composite nanofibers prepared by electrospinning technology are considered as a composite material with potential application value. The reason why the electrospinning technology can make the fiber into nanoscale is: the high-voltage electrostatic field generates a potential difference between the capillary spinneret and the ground electrode, so that the polymer solution in the capillary overcomes its own surface tension and viscoelastic force, Spherical droplets appear at the end of the silk head. As the electric field strength increases, the droplet is pulled into a conical shape called Taylor cone. When the electric field strength exceeds the critical value, it will overcome the sur...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D04H1/728D04H1/4282D01F9/08H01L51/42H01L51/46B82Y30/00
CPCD01F9/08D04H1/4282D04H1/728B82Y30/00H10K30/152H10K2102/101Y02E10/549
Inventor 沈文飞唐建国王久兴张晓琳王瑶
Owner QINGDAO UNIV
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