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

Conductive paste containing lead-free glass frit

A lead-free glass, conductive paste technology, applied in conductive materials, conductive coatings, circuits, etc. dispersed in non-conductive inorganic materials, can solve problems such as poor energy conversion efficiency and insufficient adhesion, and achieve excellent conversion efficiency, Environmentally friendly, good substrate adhesion effect

Active Publication Date: 2017-11-03
GIGA SOLAR MATERIALS
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In view of this, the technical problem to be solved by this application is that the conductive paste containing lead-free glass frit has insufficient adhesion to the substrate after sintering, and the problem of poor energy conversion efficiency

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0037] Preparation of conductive paste containing lead-free glass frit

[0038] The preparation of the organic carrier of the conductive paste is to dissolve 5 to 25 grams of ethyl cellulose in 5 to 75 grams of diethylene glycol butyl ether, and add a small amount of viscosity modifier, dispersant, thixotropic agent, wetting obtained by medicine. Then 80 to 99.5 grams of industrial-grade silver powder raw material, 0.1 to 10 grams of lead-free glass frit (Table 1, Examples G1 to G15) and 10 to 30 grams of organic vehicle were put in a three-roll mill (three -roll mill) mix and disperse evenly to make a paste or paste conductive paste.

[0039] Lead-containing glass frits were also prepared in the same manner (Table 2, Comparative Examples PG1 to PG5).

[0040] Table 1 Lead-free glass frit (TeO 2 -Bi 2 o 3 -SeO 2 -Li 2 O) composition and weight percentage thereof (embodiment)

[0041] wt%

G1

G2

G3

G4

G5

G6

G7

G8

G9

G10

G11

G...

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 application discloses a conductive paste, which is characterized in that it contains conductive metal or its derivatives, and lead-free glass frit dispersed in an organic vehicle, the lead-free glass frit includes tellurium-bismuth-selenium-lithium-oxide . The electroconductive paste of the present application can be used to form solar cell electrodes, and has excellent energy conversion efficiency.

Description

technical field [0001] The application belongs to the field of electroconductive paste, and in particular relates to an electroconductive paste containing conductive metal, lead-free glass frit and an organic carrier, and a product using the electroconductive paste. Background technique [0002] Existing solar cells or photovoltaic cells include a semiconductor substrate, a diffusion layer, an anti-reflection coating, a back electrode and a front electrode, wherein the anti-reflection coating is used to promote light absorption, thereby improving photoelectric efficiency. Antireflective coatings typically contain silicon (eg, silicon nitride or silicon dioxide). However, the anti-reflection coating increases the resistance from the semiconductor substrate to the front electrode, creating an insulating effect that weakens the flow of excited-state electrons. [0003] Therefore, when forming the front electrode, a conductive paste made by mixing conductive metal or its deriva...

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
Patent Type & Authority Patents(China)
IPC IPC(8): H01B1/22H01L31/0224
CPCH01B1/22Y02E10/50C09D11/52H01L31/022425C09D5/24H01L31/022466
Inventor 叶志贤施柏仰辛璧宇
Owner GIGA SOLAR MATERIALS