Unlock instant, AI-driven research and patent intelligence for your innovation.

Copper-zinc-tin-sulfur/selenium ink and preparation method thereof

A copper-zinc-tin-sulfur, ink technology, applied in the direction of ink, final product manufacturing, sustainable manufacturing/processing, etc., can solve the problems of difficult decomposition and removal, and improve the performance of impurity ion film, and achieve mild characteristics, good compatibility, and characteristics. The effect of low toxicity and safety

Active Publication Date: 2014-04-09
SOUTH CHINA UNIV OF TECH
View PDF7 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to overcome this obstacle, various complex organic compounds are used as solvents to replace hydrazine. However, due to the limitation of the solubility of metal sources, the current non-hydrazine solution method to prepare copper zinc tin sulfur / selenium ink is mostly limited to metal chloride. Chloride ions or acid radical impurity ions contained in these metal sources are not easy to decompose and remove, and the residue of impurity ions is not conducive to the improvement of film performance

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Copper-zinc-tin-sulfur/selenium ink and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Prepare a monoethanolamine aqueous solution with a concentration of 7.2mol / L. Take copper hydroxide, zinc hydroxide, tin hydroxide and sulfur element with a molar ratio of 1.8:1.2:1:5, and dissolve the three metal sources of the ratio in monoethanolamine aqueous solution respectively to obtain a metal source concentration of 0.3 mol / L copper source solution, zinc source solution and tin source solution. The three metal source solutions were fully mixed and heat-treated at a temperature of 150° C. for 30 minutes to obtain a copper-zinc-tin source solution. Dissolve the obtained elemental sulfur in monoethanolamine to obtain a sulfur source solution with a concentration of 2 mol / L. The copper-zinc-tin source solution and the sulfur source solution are mixed and fully reacted to obtain the copper-zinc-tin-sulfur ink.

[0022] The prepared copper-zinc-tin-sulfur ink was directly spin-coated on a clean glass slide by spin coating, and annealed under the protection of nitro...

Embodiment 2

[0024] Prepare a monoethanolamine aqueous solution with a concentration of 8.2mol / L. Get basic copper carbonate, zinc hydroxide, tin hydroxide, selenium simple substance and tetramethylammonium hydroxide that the molar ratio is 0.9:1.2:1:4.5:8, three kinds of metal sources are dissolved in monoethanolamine aqueous solution respectively, A copper source solution, a zinc source solution and a tin source solution with a metal source concentration of 0.35 mol / L were obtained. The three metal source solutions were fully mixed and heat-treated at a temperature of 130° C. for 40 minutes to obtain a copper-zinc-tin source solution. Co-dissolve the obtained selenium element and tetramethylammonium hydroxide in monoethanolamine aqueous solution to obtain a mixed solution with a selenium concentration of 0.5 mol / L, and heat the mixed solution at a temperature of 90°C for 40 minutes to obtain selenium source solution. The copper-zinc-tin source solution and the selenium source solution ...

Embodiment 3

[0026] Prepare a monoethanolamine aqueous solution with a concentration of 9.7mol / L. Take basic copper carbonate, basic zinc carbonate, tin hydroxide, sulfur element and selenium element with a molar ratio of 0.9:0.4:1:1.8:2.5, and dissolve the three metal sources in the ratio in monoethanolamine aqueous solution respectively , to obtain a copper source solution, a zinc source solution and a tin source solution with a metal source concentration of 0.3 mol / L. The three metal source solutions are fully mixed and heat-treated at a temperature of 100° C. for 50 minutes to obtain a copper-zinc-tin source solution. Dissolve the obtained sulfur element in monoethanolamine to obtain a sulfur source solution with a concentration of 1 mol / L. The obtained selenium element is directly dissolved in the sulfur source solution to obtain the sulfur-selenium source solution. The copper zinc tin source solution and the sulfur selenium source solution are mixed and fully reacted to obtain the ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses copper-zinc-tin-sulfur / selenium ink and a preparation method thereof. The ink is prepared from metal source liquor and non-metal source liquor, wherein the metal source liquor consists of copper source liquor, zinc source liquor and tin source liquor; the non-metal source liquor is composed of more than one of the sulfur source liquor and the selenium source liquor. The ink is prepared by virtue of the following steps: (1), respectively dissolving a copper source, a zinc source and a tin source into a solvent by taking monoethanolamine aqueous liquor as the solvent, mixing, and then carrying out thermal treatment so as to obtain the copper-zinc-tin source liquor; (2), dissolving a non-metal source into the solvent so as to obtain the non-metal source liquor by taking monoethanolamine or monoethanolamine aqueous liquor as the solvent; (3), mixing for reacting to obtain the copper-zinc-tin-sulfur / selenium ink. The method disclosed by the invention has the advantages that the metal sources do not contain chlorine ions or other acid radial impurity ions which are difficult to degrade and remove, and the solvent is gentle in characteristic, environment-friendly, single and easy to decompose, and the adverse effect of impurity ions on the performance of a battery film can be avoided.

Description

technical field [0001] The invention relates to the technical field of thin-film solar cells, in particular to an ink for preparing an absorbing layer of a copper-zinc-tin-sulfur / selenium thin-film solar cell and a preparation method thereof. Background technique [0002] Copper zinc tin sulfur / selenium has a high light absorption coefficient and a suitable direct optical band gap. Its constituent elements are rich in sources and environmentally friendly. It is a new type of absorbing layer material for thin-film solar cells with great potential. more and more attention. Using low-cost, safe, non-toxic or low-toxic raw materials to prepare copper-zinc-tin-sulfur / selenium inks, combined with a simple process to prepare large-area copper-zinc-tin-sulfur / selenium thin films with good performance is the main trend in the development of thin-film solar cell technology in the future. . [0003] At present, copper zinc tin sulfur / selenium ink can be prepared by using copper, zinc...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C09D11/02C09D11/033H01L31/18
CPCY02P70/50
Inventor 姚若河李嘉辉
Owner SOUTH CHINA UNIV OF TECH