Patent application number | Description | Published |
20080302411 | Paste Composition and Solar Cell Element Using the Same - Provided are a paste composition making it possible to improve the adhesive property of a backside electrode and restrain an aluminum electrode layer from exfoliating, and a solar cell element having an electrode formed by use of this composition. The paste composition is a paste composition for forming an electrode ( | 12-11-2008 |
20090233118 | Pasty Composition for Aluminum Brazing, Aluminum-Containing Member Coated With the Same, and Method for Brazing Aluminum-Containing Members With the Same - Provided are a pasty composition for aluminum brazing which has excellent coating properties, is capable of attaining favorable dimensional accuracy of products obtained after brazing, causes less erosion, and allows favorable external appearances of brazed portions (fillets); an aluminum-containing member coated with the pasty composition for aluminum brazing; and a method, using the pasty composition for aluminum brazing, for brazing the aluminum-containing members. The pasty composition for aluminum brazing contains an aluminum-containing powder. In a case where on a cumulative grading curve of the aluminum-containing powder, a particle diameter D μm which corresponds to a Q volume % is indicated as D(Q) μm, D(50) μm is greater than or equal to 20 μm and less than or equal to 150 μm; and D(90) μm/D(10) μm is less than or equal to 5. A mass percentage of particles, in the aluminum-containing powder, which pass through a screen mesh having an opening of 45 μm is less than or equal to 50%. A flowability of the aluminum-containing powder is less than or equal to 80 seconds/50 g. | 09-17-2009 |
20090250103 | Aluminum paste composition and solar cell element using the same - Provided are an aluminum paste composition capable of inhibiting formation of blisters and globules of aluminum in a back surface electrode layer, which is caused at the time of firing, of reducing bow of a silicon semiconductor substrate even when a thinner silicon semiconductor substrate is used, and of attaining a high BSF effect and a high energy conversion efficiency; and a solar cell element comprising an electrode formed by using the composition. The aluminum paste composition is a paste composition for forming an electrode ( | 10-08-2009 |
20100180948 | PASTE COMPOSITION AND SOLAR CELL ELEMENT - Provided are a paste composition which is capable of sufficiently achieving at least a BSF effect equivalent to or greater than a conventionally achieved BSF effect even when the paste composition is used in either case where a thick back surface electrode layer is formed on a thick silicon semiconductor substrate or where a thin back surface electrode layer is formed on a thin silicon semiconductor substrate and which is capable of not only achieving the BSF effect equivalent to or greater than the conventionally achieved BSF effect but also suppressing a deformation of the silicon semiconductor substrate after being fired when the paste composition is used in the case where the thin back surface electrode layer is formed on the thin silicon semiconductor substrate; and a solar cell element comprising an electrode formed by using the above-mentioned paste composition. The paste composition comprises aluminum powder as electrically conductive powder, and a total content of iron and titanium contained therein as inevitable impurity elements is less than or equal to 0.07% by mass. The solar cell element comprises a back surface electrode ( | 07-22-2010 |
20110272019 | PASTE COMPOSITION AND SOLAR CELL ELEMENT USING THE SAME - Provided are a paste composition capable of avoiding deteriorations in a mechanical strength and an adhesion property of an electrode layer, of sufficiently attaining a desired BSF effect, and of suppressing deformation (bow) of the silicon semiconductor substrate even in a case where a silicon semiconductor substrate is rendered thin; and a solar cell element including an impurity layer, or an impurity layer and an electrode layer, which is (or are) formed by using the above-mentioned composition. The paste composition is used for forming a p+ layer ( | 11-10-2011 |