Solar cell with low resistance linear electrode
AssigneeMitsubishi Denki Kabushiki Kaisha
InventorTakushi Itagaki
Life of this patent
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Abstract
A method for producing a linear pattern having a width less than 100 microns and a resistivity of the order of 10.sup.-6 .OMEGA..multidot.cm on a substrate includes maintaining a low melting point metal in its fused state, applying the fused metal to a tip of a drawing head disposed close to or contacting a substrate by capillary action, applying the fused metal to the substrate in a line with a width less than 100 microns while moving the tip of the drawing head relative to the substrate, and cooling and solidifying the linear pattern of fused metal. Therefore, a linear pattern having a width less than 100 microns and a resistivity of the order of 10.sup.-6 .OMEGA..multidot.cm is directly formed on the substrate in a simple process with high efficiency and the production yield is significantly improved.
Claims6
A solar cell comprising:
- an active layer comprising one of microcrystalline silicon and amorphous silicon and including at least a p type layer and an n type layer;
- and
- electrodes for extracting current generated in said active layer, wherein one of said electrodes is disposed on said active layer and comprises a linear metallic pattern having a width less than 100 microns and comprising a metallic material having a melting point below 200.degree. C. and a resistivity of the order of 10.sup.-6 .OMEGA..multidot.cm.
A solar cell comprising:
- a active layer comprising at least a p-type layer and an n-type layer;
- and
- electrodes for extracting current generated in said active layer wherein one of said electrodes is disposed on said active layer and comprises a first linear pattern disposed on the active layer and a second linear pattern disposed on the active layer and intersecting the first linear pattern, the first and second linear patterns each comprising a metallic material selected from the group consisting of In-Sn alloy, In-Pb alloy, and In wherein said metallic material of the second linear pattern has a lower melting point than the metallic material of the first linear pattern.
Dependencies are inferred from the claim text.