Conductive thickener, electronic device and solar battery comprising electrodes formed by conductive thickener

A technology of solar cells and conductive pastes, which is applied in the field of electronic devices and solar cells, and can solve problems such as low conductivity

Active Publication Date: 2012-03-14
SAMSUNG ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, an electrode formed using a conductive paste may have low conductivity due to glass frit contained in the conductive paste

Method used

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  • Conductive thickener, electronic device and solar battery comprising electrodes formed by conductive thickener
  • Conductive thickener, electronic device and solar battery comprising electrodes formed by conductive thickener
  • Conductive thickener, electronic device and solar battery comprising electrodes formed by conductive thickener

Examples

Experimental program
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Effect test

Embodiment 1

[0165] Silver (Ag) powder and metallic glass Cu 50 Zr 50 Add to organic vehicle including ethyl cellulose binder and butyl carbitol solvent. The silver (Ag) powder, the metallic glass Cu 50 Zr 50 , and the organic vehicle were mixed at about 84% by weight, about 4% by weight, and about 12% by weight, respectively, based on the total amount of the conductive paste.

[0166] This was kneaded using a 3-roll mill to provide a conductive paste.

[0167] The conductive paste was coated on a silicon wafer by screen printing. It was then heated rapidly to about 500°C and slowly to about 900°C using a belt furnace. It was cooled to provide an electrode.

Embodiment 2

[0169] Conductive pastes were prepared according to the same procedure as in Example 1 to provide electrodes, except that Cu 43 Zr 43 al 7 Ag 7 As a metallic glass instead of Cu 50 Zr 50 outside.

[0170] Rating -1

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Abstract

The invention relates to a conductive thickener and an electronic device and a solar battery comprising electrodes formed by the conductive thickener. The conductive thickener comprises conductive powder, a metal glass and an organic carrier, wherein, the metal glass comprises an alloy comprising at least two chemical elements selected from a chemical element having a low resistivity, a chemical element formed a solid solution with the conductive powder or a chemical element having a high oxidation potential, and wherein, the chemical element having the low resistivity has a resistivity about 100 micro-ohmmeter-cm, and the chemical element having the high oxidation potential has a Gibbs free energy absolute value about 100 kilojoule/moore or more.

Description

technical field [0001] The present disclosure relates to a conductive paste, and electronic devices and solar cells including electrodes formed using the conductive paste. Background technique [0002] A solar cell is a photoelectric conversion device that converts solar energy into electrical energy. Solar cells have attracted much attention as a potentially unlimited and essentially non-polluting next-generation energy source. [0003] Solar cells contain p-type and n-type semiconductors. When electron-hole pairs ("EHP") are generated by light absorbed in the photoactive layer of the semiconductor, the solar cell generates electricity by migrating electrons and holes to the n-type semiconductor and p-type semiconductor, respectively. type semiconductor, and then collect the electrons and holes in the corresponding electrodes of the solar cell. [0004] Desirably, solar cells have as high an efficiency as possible for generating electrical energy from the sun. To improv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B1/20H01B1/22H01L31/0224
CPCH01B1/22
Inventor 金世润李殷成池尚洙李相睦
Owner SAMSUNG ELECTRONICS CO LTD
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