Composition for forming solar cell electrode and electrode prepared using the same
First Claim
1. A composition for forming a solar cell electrode, the composition comprising:
- a silver powder, a glass frit, and an organic vehicle, wherein;
the glass frit includes silver, tellurium, and one or more of lithium, sodium, or potassium,a molar ratio of silver;
tellurium in the glass frit is about 1;
0.1 to about 1;
50, anda molar ratio of silver;
lithium, sodium, or potassium in the glass frit is about 1;
0.01 to about 1;
10,wherein silver in the glass frit is formed from one or more of silver cyanide, silver nitrate, a silver halide, silver carbonate, silver acetate, or silver sulfate, andwherein the glass frit generates silver crystals in response to baking the composition for forming a solar cell electrode.
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0 Petitions
Accused Products
Abstract
Example embodiments relate to a composition for forming a solar cell electrode, and a solar cell electrode prepared using the composition. The composition for forming a solar cell electrode includes a silver (Ag) powder, a glass frit, and an organic vehicle, wherein the glass frit includes silver (Ag); tellurium (Te); and at least one selected from the group of lithium (Li), sodium (Na), and potassium (K), a molar ratio of the silver (Ag):the tellurium (Te) included in the glass frit is in a range of about 1:0.1 to about 1:50, and a molar ratio of the silver (Ag):lithium (Li), sodium (Na) or potassium (K) is in a range of about 1:0.01 to about 1:10. The solar cell electrode prepared using the composition has excellent fill factor and conversion efficiency due to minimized contact resistance (Rc) and series resistance (Rs).
5 Citations
14 Claims
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1. A composition for forming a solar cell electrode, the composition comprising:
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a silver powder, a glass frit, and an organic vehicle, wherein; the glass frit includes silver, tellurium, and one or more of lithium, sodium, or potassium, a molar ratio of silver;
tellurium in the glass frit is about 1;
0.1 to about 1;
50, anda molar ratio of silver;
lithium, sodium, or potassium in the glass frit is about 1;
0.01 to about 1;
10,wherein silver in the glass frit is formed from one or more of silver cyanide, silver nitrate, a silver halide, silver carbonate, silver acetate, or silver sulfate, and wherein the glass frit generates silver crystals in response to baking the composition for forming a solar cell electrode. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A composition for forming a solar cell electrode, the composition comprising:
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a silver powder, a glass frit, and an organic vehicle, wherein; the glass frit includes silver, tellurium, and one or more of sodium or potassium, a molar ratio of silver;
tellurium in the glass frit is about 1;
0.1 to about 1;
50, anda molar ratio of silver;
sodium or potassium in the glass frit is about 1;
0.01 to about 1;
10,wherein silver in the glass frit is formed from one or more of silver cyanide, silver nitrate, a silver halide, silver carbonate, silver acetate, or silver sulfate, and wherein the glass frit generates silver crystals in response to baking the composition for forming a solar cell electrode.
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Specification