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Rapid preparing method for solar cell CIGS target material

A solar cell and target material technology, which is applied in the field of photoelectric materials and solar cells, can solve the problems of complex preparation methods and long duration, and achieve the effects of simple and effective preparation methods, increased relative density of blocks, and improved preparation efficiency

Inactive Publication Date: 2019-10-25
GUILIN UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the powder preparation method currently studied is relatively complicated, and other sintering processes such as hot pressing are usually used in the sintering process, resulting in too long duration and serious energy loss

Method used

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  • Rapid preparing method for solar cell CIGS target material
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  • Rapid preparing method for solar cell CIGS target material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A kind of rapid preparation method of solar cell CIGS target material, it comprises the following steps:

[0033] (1) According to the atomic ratio of indium powder, gallium grains and selenium powder at 3:1:6, weigh 7.916g of indium powder, 1.602g of gallium grains and 10.887g of selenium powder; copper powder and selenium powder at an atomic ratio of 2:1, Weigh 12.338g of copper powder and 7.664g of selenium powder; the atomic ratio of copper powder and selenium powder is 1:1, and weigh 8.918g of copper powder and 11.082g of selenium powder.

[0034] (2) Put the above-mentioned three types of raw materials that have been weighed into the agate-lined ball mill tank respectively, take out after 24 hours of high-speed ball milling at 480 rpm, and obtain samples after centrifugal drying, and then mix the three types of raw material powders through ball milling Afterwards, take out and dry, and take out the product;

[0035] (3) Weigh 5g of the product into a graphite mol...

Embodiment 2

[0041] A kind of rapid preparation method of solar cell CIGS target material, it comprises the following steps:

[0042] (1) According to the atomic ratio of indium powder, gallium grains and selenium powder at 4:1:7, weigh 10.041g of indium powder, 1.512g of gallium grains and 12.072g of selenium powder; copper powder and selenium powder at an atomic ratio of 3:2, Weigh 10.961g of copper powder and 9.064g of selenium powder; the atomic ratio of copper powder and selenium powder is 1:1, and weigh 8.918g of copper powder and 11.082g of selenium powder.

[0043] (2) Put the weighed above-mentioned raw materials into a ball mill jar lined with agate, take out after high-speed ball milling for 36 hours at 430 rpm, obtain a sample after centrifugal drying, take out and dry after ball mill mixing, and take out the product;

[0044] (3) Weigh 10g of the product and put it into a graphite mold, put it into the SPS sintering furnace cavity, set the process parameters, raise the tempera...

Embodiment 3

[0047] A kind of rapid preparation method of solar cell CIGS target material, it comprises the following steps:

[0048] (1) According to the atomic ratio of indium powder, gallium grains and selenium powder at 3:2:10, weigh 4.322g of indium powder, 1.746g of gallium grains and 9.931g of selenium powder; copper powder and selenium powder at an atomic ratio of 6:5, Weigh 9.824g of copper powder and 10.184g of selenium powder; the atomic ratio of copper powder and selenium powder is 1:1, and weigh 8.918g of copper powder and 11.082g of selenium powder.

[0049] (2) put the weighed above-mentioned raw materials into the ball mill jar of agate lining, take out after high-speed ball milling at 480 rpm for 20h, obtain the sample after centrifugal drying, take out and dry after ball mill mixing, and take out the product;

[0050] (3) Weigh 10g of the product and place it in a graphite mold, put it into the SPS sintering furnace cavity, set the process parameters, raise the temperatur...

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Abstract

The invention relates to a rapid preparing method for a solar cell CIGS target material. The rapid preparing method comprises the steps that copper-indium-gallium-selenium quaternary powder, cuprous selenide powder and selenizing copper powder are prepared, and then a CIGS quaternary target is formed through sintering. Firstly, three kinds of weighed raw material powder is ground and then placed in a planet ball mill to be mixed for 12-48 h (revolution is conducted every 300-500 r / min, the ratio of revolution to rotation is 1:2, the ball mill tank material is a zirconia lining, a ball mill medium is ethyl alcohol, the ball mill material is ZrO2, and a cavity is inflated with argon after vacuum pumping), then, the powder is alloyed, then, the powder is placed in a discharge plasma sinteringfurnace (inflation of argon and other inert gases is conducted, and volatilization of Se is restrained), and the copper-indium-gallium-selenium quaternary target is prepared through sintering. SPS sintering is adopted in the technology, simpleness and effectiveness are achieved, compared with traditional hot pressing and other sintering, efficiency is higher, rapid sintering can be achieved at the low temperature within the short time, the size of grains prepared through sintering is small, and the relative density of the target material prepared under the same conditions is higher and reaches 98% or above.

Description

technical field [0001] The invention relates to a rapid preparation method of CIGS targets for solar cells, which is mainly used in the fields of photoelectric materials and solar cells. Background technique [0002] With the rapid development of modern society, the energy crisis is becoming more and more serious, and it is necessary to find some recyclable and green new energy sources. And solar energy is this kind of renewable energy, and its storage capacity is also the largest at present, so the development and use of solar energy has become the focus of research in recent years. Among many solar cells, copper indium gallium selenide thin film solar cells have attracted the attention of a large number of researchers because of their stable performance, low attenuation, and high photoelectric conversion efficiency (22.3%). [0003] A solar cell is a solid-state electronic device that converts solar energy into electricity through the photovoltaic effect generated inside ...

Claims

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Application Information

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IPC IPC(8): C23C14/34B22F3/105B22F9/04
CPCB22F3/105B22F9/04B22F2009/043C23C14/3414Y02P10/25
Inventor 王吉林廖和杰郑国源龙飞吉钰纯莫淑一周炳邹正光
Owner GUILIN UNIVERSITY OF TECHNOLOGY
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