Conductive paste and conductive track or coating
摘要
說(shuō)明書
Mixing (e.g. co-milling) the raw materials for the inorganic particle mixture may be followed by mixing the resultant blend with an organic medium and an electrically conductive material, for example, in any order. Co-milling may be the only processing carried out on the raw materials for the inorganic particle mixture. For example, no method for glass production may be carried out. It will be understood that alternatively, each component of the inorganic particle mixture could be added separately to the electrically conductive material and the organic medium in order to obtain the conductive paste of the present invention.
For example, the above discussed oxides, carbonates, nitrates and so on may be blended. Then resultant mixture may then be milled or not. When milled, the process may be carried out, for example, in a planetary mill to provide the desired particle size distribution as discussed above. Wet milling can be carried out in an organic solvent, such as butyldiglycol. A resultant blended powder may then be dried. Sieving may be carried out, to further adjust the particle size distribution.
Conductive Paste
The conductive paste is suitable for forming a conductive track or coating on a substrate. It is particularly suitable for forming a surface electrode on a semiconductor substrate, e.g. in a solar cell. The conductive paste is also suitable for forming an electrode on a thin film solar cell. The conductive paste may be a front side conductive paste.
