Paste composition for a solar cell electrode, electrode fabricated using the same, and solar cell including the electrode
A technology of solar cells and compositions, applied in the field of solar cells, capable of solving problems such as limitations
Active Publication Date: 2013-06-05
CHANGZHOU JUHE NEW MATERIAL CO LTD
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- Abstract
- Description
- Claims
- Application Information
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Problems solved by technology
However, these methods are limited in increasing the aspect ratio of electrodes
Method used
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[0076] For the composition (unit: wt %) prepared at the ratio given in Table 2, 85 parts by weight of conductive powder, 5 parts by weight of glass frit, and 10 parts by weight of organic vehicle were mixed (by A paste composition for a solar cell electrode was prepared by dissolving 1 part by weight of ethyl cellulose in 9 parts by weight of carbitol), followed by kneading using a 3-roll kneader.
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Abstract
A paste composition for a solar cell electrode, a solar cell electrode fabricated using the same, and a solar cell including the electrode, the paste composition including a mixture of conductive powders, the mixture of conductive powders including about 30 wt % to about 55 wt % of a first spherical powder having an average particle diameter D50 of 1.5 mum or less; about 3 wt % to about 8 wt % of a flake powder having an average particle diameter D50 of about 2 mum to about 3.5 mum; and a balance of a second spherical powder having an average particle diameter D50 of greater than 1.5 mum; glass fit; and an organic vehicle.
Description
technical field [0001] The present invention relates to a paste composition (paste composition) for solar cell electrodes, an electrode made by using the paste composition, and a solar cell including the electrode. More specifically, the present invention relates to a paste composition for a solar cell electrode, the paste composition comprising a mixture of conductive powders comprising a specific amount of the conductive powder having a specific average particle diameter and a specific shape, involving the use of the An electrode made of the paste composition, and a solar cell comprising the electrode. The present invention provides electrodes that can achieve narrow line width and high thickness, that is, high aspect ratio (electrode thickness / electrode line width), when the electrode is fabricated by screen printing, thereby providing high efficiency. Background technique [0002] Solar cells generate electrical energy using the photovoltaic effect of a p-n junction, wh...
Claims
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IPC IPC(8): H01B1/22H01L31/0224
CPCH01L31/022425Y02E10/50H01B1/22H01L31/0224H01B1/16H01L31/04C03C8/18C09D11/52
Inventor 崔永郁梁相贤宋大燮
Owner CHANGZHOU JUHE NEW MATERIAL CO LTD