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Preparation method of ZnO/Ag nanofiber film by electrospinning method

An electrospinning method and nanofiber technology, which is applied in the field of polymer solar cell devices and the preparation of ZnO/Ag nanofiber films obtained by electrospinning method, can solve the problems of low production efficiency, high cost, and complicated equipment, and achieve Easy operation, high photoelectric conversion efficiency, and simple process

Active Publication Date: 2018-08-28
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 nanofiber film by electrospinning method
  • Preparation method of ZnO/Ag nanofiber film by electrospinning method
  • Preparation method of ZnO/Ag nanofiber film by electrospinning method

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 The addition of changing 0.2 parts by weight, according to the same method of embodiment 1, prepare ZnO-Ag nano-hybrid electron transport thin film.

Embodiment 3

[0051] In addition to the AgNO in step 1.2 3 The addition of changing 0.14 weight parts, prepare ZnO-Ag nano-hybrid electron transport film according to the same method of embodiment 1.

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Abstract

The invention provides a preparation method for obtaining a ZnO / Ag nanofiber film by an electrospinning method. Specifically, a certain proportion of the Ag nanowire sol solution is added to a mixed aqueous solution of zinc acetate and PVP, which is fully mixed to obtain a uniform mixed spinning solution of Zn (CH3COO) 2 / Ag line / PVP; the spinning solution is spun into nanoscale ZnO / Ag / PVP nanofibers by electrospinning. The nanofibers are stacked into a nanometer-scale film, and the film thickness is controlled by controlling the spinning time; the ZnO / Ag / PVP nanofiber film was calcined at a high temperature to remove the polymer PVP, and a ZnO / Ag nanofiber film with high conductivity is obtained. The preparation method is simple in process, easy to operate. The prepared nanofiber can obtain a very good topography structure. The ZnO / Ag nanofiber film prepared by the method can be used as an electron transport layer in a polymer solar cell, and the photoelectric conversion performance ofthe battery is improved by more than 10%.

Description

technical field [0001] The invention relates to the field of preparation of nano-hybrid materials, in particular to a method for preparing a ZnO / Ag nanofiber film obtained by an electrospinning method, 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 surface tension ...

Claims

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Application Information

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Patent Type & Authority Applications(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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