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Method for synthesizing copper-indium-selenium nanocrystalline

A synthesis method and nanocrystal technology are applied in the field of solar cell materials to achieve the effects of strong operability, simple synthesis device and low reaction cost

Inactive Publication Date: 2010-04-28
XIAMEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although there is a big improvement in the latest research (Bonil Koo, Reken N.Patel, and Brian A.Korgel, J.Am.Chem.Soc.2009, 131, 3134), although the synthetic method reported in this article will The temperature is lowered to 240°C and the reaction time is also shortened, but this method uses selenourea as a selenium source, which not only needs to dissolve selenourea at high temperature, but also selenourea is a highly toxic chemical

Method used

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  • Method for synthesizing copper-indium-selenium nanocrystalline
  • Method for synthesizing copper-indium-selenium nanocrystalline
  • Method for synthesizing copper-indium-selenium nanocrystalline

Examples

Experimental program
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Effect test

Embodiment 1

[0020] (1) In a 25ml snap-top bottle, add 0.3ml of dodecyl mercaptan and 5ml of oleylamine and mix evenly, then add 0.08g of elemental selenium, ultrasonically disperse at room temperature for 10min to obtain a uniformly dispersed selenium solution, and finally transfer the solution into the constant pressure funnel.

[0021] (2) Operate and weigh 0.11gInCl in the glove box 3 and 0.05g CuCl in a 50ml three-neck round bottom flask, then add 6ml oleic acid and 9ml octadecene.

[0022] (3) Install the reaction device: one side port of the three-neck bottle is connected to the constant pressure funnel in step (1), and the other side side pipe is connected to the temperature probe of the built-in heating jacket of the glass sleeve to measure the temperature of the reaction solution. The middle port is connected to the reflux condenser, and the vacuum line is connected to the condenser for vacuuming and nitrogen. Finally, the three-necked bottle was placed in a magnetic heating st...

Embodiment 2

[0029] (1) In a 25ml snap-top bottle, add 0.5ml of dodecyl mercaptan and 5ml of oleylamine and mix evenly, then add 0.08g of elemental selenium, ultrasonically disperse at room temperature for 10min to obtain a uniformly dispersed selenium solution, and finally transfer the solution into the constant pressure funnel.

[0030] (2) Weigh 0.22gInCl in the glove box 3 and 0.05g CuCl in a 50ml three-neck round bottom flask, then add 6ml oleic acid and 9ml octadecene.

[0031] (3) Install the reaction device: one side port of the three-neck bottle is connected to the constant pressure funnel in step (1), and the other side side pipe is connected to the temperature probe of the built-in heating jacket of the glass sleeve to measure the temperature of the reaction solution. The middle port is connected to the reflux condenser, and the vacuum line is connected to the condenser for vacuuming and nitrogen. Finally, the three-necked bottle was placed in a magnetic heating stirrer.

[0...

Embodiment 3

[0037] (1) In a 25ml snap bottle, add 0.7ml of dodecyl mercaptan and 5ml of oleylamine and mix evenly, then add 0.08g of elemental selenium, ultrasonically disperse at room temperature for 10min to obtain a uniformly dispersed selenium solution, and finally transfer the solution into the constant pressure funnel.

[0038] (2) Weigh 0.22gInCl in the glove box 3 and 0.05g CuCl in a 50ml three-neck round bottom flask, then add 6ml oleic acid and 9ml octadecene.

[0039] (3) Install the reaction device: one side port of the three-neck bottle is connected to the constant pressure funnel in step (1), and the other side side pipe is connected to the temperature probe of the built-in heating jacket of the glass sleeve to measure the temperature of the reaction solution. The middle port is connected to the reflux condenser, and the vacuum line is connected to the condenser for vacuuming and nitrogen. Finally, the three-necked bottle was placed in a magnetic heating stirrer.

[0040]...

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Abstract

The invention discloses a method for synthesizing copper-indium-selenium nanocrystalline and relates to a solar cell material. The invention provides a method for synthesizing copper-indium-selenium nanocrystalline with simple technological steps. The method comprises the following steps: mixing dodecyl mercaptan and oleyl amine to obtain a mixed solvent; adding an elementary substance selenium, and dispersing to obtain an evenly dispersed elementary substance solution; adding cuprous chloride and indium chloride into an oleic acid-octadecylene mixed solvent, heating while stirring, vacuumizing, so that the vacuum degree of the system is lower than -0.1 MPa, and introducing nitrogen to obtain an oleic acid-octadecylene composition of cupric salts and indium salts in the nitrogen atmosphere, wherein the oleic acid-octadecylene composition of cupric salts and indium salts is a light-brown transparent solution; and injecting the prepared selenium solution into the oleic acid-octadecylene composition of cupric salts and indium salts, heating to carry out the reaction, centrifugating to obtain a precipitate, and respectively washing the precipitate with methenyl chloride and ethanol at least once to obtain the copper-indium-selenium nanocrystalline.

Description

technical field [0001] The present invention relates to a kind of solar cell material, relate in particular to a kind of copper indium selenium nanocrystal (recorded as CuInSe 2 ) synthesis method. Background technique [0002] Energy is the basis for the survival and development of human society, and the energy crisis in today's society is an urgent problem. People are trying to find new energy to solve the growing energy demand. Solar energy is an inexhaustible clean energy source for human beings. In the application of solar energy, the most extensive and dynamic field is photovoltaic power generation. Its working principle is to use the photovoltaic effect of semiconductors to convert solar energy into electrical energy that can be widely used by humans. Solar cell materials have also been developed since the discovery of the photovoltaic effect in 1800. After the first generation of monocrystalline silicon and polycrystalline silicon solar cells, it is also the most...

Claims

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Application Information

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IPC IPC(8): C01B19/00
Inventor 江智渊周云
Owner XIAMEN UNIV
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