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Preparation method for copper-zinc-tin-sulfur photoelectric fibers

A photoelectric fiber, copper-zinc-tin-sulfur technology, applied in the field of photovoltaic material preparation, can solve the problems of low utilization rate of sunlight, low carrier mobility, low stability, etc., and achieve high carrier mobility and operation The effect of simple steps and low cost

Active Publication Date: 2016-11-09
WUXI CHAOZHOU TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention: aiming at the low utilization rate of sunlight, low carrier mobility and low stability of polystyrene as a photovoltaic material, which restrict its practical application, the present invention first Waste copper slag is pretreated, calcined, milled, magnetically separated and ball milled to obtain ball milling mixed powder, then mixed with citric acid and glacial acetic acid, heated and stirred with polyvinyl alcohol and ethanolamine to obtain a precursor solution , and finally electrospinning it to obtain copper-zinc-tin-sulfur photoelectric fiber

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0018] First, collect the waste copper slag from the copper smelter, wash it, dry it naturally, and then grind and sieve it to prepare 60-mesh copper slag particles, collect the copper slag particles, put them in a crucible, and move the crucible to a tube furnace , pass oxygen through it to remove the air, and then heat it up to 500°C under an oxygen atmosphere, and heat-preserve and calcinate for 2 hours; Slag powder, sieve the copper oxide slag powder with a magnet. After the magnetic separation is completed, place it in a ball milling device, use absolute ethanol as a dispersant, ball mill for 5 hours, and then dry naturally to prepare a ball milling mixed powder; press In terms of parts by weight, weigh 50 parts of 30% citric acid solution, 30 parts of glacial acetic acid and 20 parts of the above-prepared ball-milled mixed powder and place them in a three-necked flask, heat in a water bath at 60°C for 5 hours, then filter and collect the filtrate , to prepare the acidifi...

example 2

[0021] First, collect the waste copper slag from the copper smelter, wash it, dry it naturally, and then grind and sieve it to prepare 50-mesh copper slag particles, collect the copper slag particles, put them in a crucible, and move the crucible to a tube furnace , pass oxygen through it to remove the air, and then heat it up to 450°C in an oxygen atmosphere, and heat-preserve and calcinate for 1 hour; Slag powder, sieve the copper oxide slag powder with a magnet, after the magnetic separation is completed, place it in a ball milling device, use absolute ethanol as a dispersant, ball mill for 3 hours, and then dry naturally to prepare a ball milling mixed powder; press In terms of parts by weight, weigh 45 parts of 30% citric acid solution, 25 parts of glacial acetic acid and 15 parts of the above-prepared ball-milling mixed powder, place them in a three-necked flask, heat in a water bath at 45°C for 3 hours, then filter and collect the filtrate , to prepare the acidified mix...

example 3

[0024]First collect the waste copper slag from the copper smelter, wash it, dry it naturally, and then grind and sieve it to prepare 55-mesh copper slag particles, collect the copper slag particles, put them in a crucible, and move the crucible to a tube furnace , pass oxygen through it to remove the air, and then heat it up to 470°C in an oxygen atmosphere, and heat-preserve and calcinate for 2 hours; Slag powder, sieve the copper oxide slag powder with a magnet, after the magnetic separation is completed, place it in a ball milling device, use absolute ethanol as a dispersant, ball mill for 4 hours, and then dry naturally to prepare a ball milling mixed powder; press In terms of parts by weight, weigh 47 parts of 30% citric acid solution, 27 parts of glacial acetic acid and 17 parts of the ball-milled mixed powder prepared above and place them in a three-necked flask, heat in a water bath at 50°C for 4 hours, then filter and collect the filtrate , to prepare the acidified mi...

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Abstract

The invention relates to a preparation method for copper-zinc-tin-sulfur photoelectric fibers, and belongs to the technical field of a photovoltaic material. The preparation method comprises the steps of performing preprocessing on waste copper slag, then carrying out calcining, grinding, magnetic separating and ball milling to obtain a ball-milled mixed powder; then mixing the mixed power with citric acid and glacial acetic acid, and then performing heating, stirring and mixing on the mixture, and polyvinyl alcohol and ethanol amine to obtain a precursor solution; and finally, carrying out electrostatic spinning on the precursor solution to obtain the copper-zinc-tin-sulfur photoelectric fibers. The copper-zinc-tin-sulfur photoelectric fibers prepared by the method are high in sunlight utilization rate; the photoelectric efficiency can reach 8.5-8.8%; and the carrier mobility is higher than 30.25cm<2>v<-1>s<-1>.

Description

technical field [0001] The invention relates to a method for preparing a copper-zinc-tin-sulfur photoelectric fiber, which belongs to the technical field of photovoltaic material preparation. Background technique [0002] Photovoltaic materials can generate current because of the photovoltaic effect, that is, if light shines on a solar cell and the light is absorbed at the interface layer, photons with sufficient energy can excite electrons from covalent bonds in P-type silicon and N-type silicon , resulting in the generation of electron-hole pairs. The electrons and holes near the interface layer will be separated from each other by the electric field effect of the space charge before recombination. Electrons move to the positively charged N region and holes move to the negatively charged P region. Through the charge separation of the interface layer, an outward testable voltage will be generated between the P region and the N region. At this time, electrodes can be adde...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L31/18
CPCH01L31/0322Y02E10/541Y02P70/50
Inventor 陈建峰高玉刚薛培龙
Owner WUXI CHAOZHOU TECH CO LTD