SOLAR CELL AND ELECTRODE STRUCTURE THEREOF
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United States of America Patent
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Issued Date -
Jul 21, 2011
app pub date -
Mar 25, 2011
filing date -
Jul 28, 2010
priority date (Note) -
Abandoned
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Abstract
An electrode structure for a solar cell is disposed on a substrate of the solar cell and includes a plurality of bus electrodes and finger electrodes. The bus electrodes are formed by separately disposing a conductive material on the substrate. The finger electrodes are formed by separately disposing a conductive material on the substrate and at two sides of the bus electrodes. The bus electrodes and the finger electrodes are formed by two screen printing processes. The bottom portion of the finger electrodes are formed by a first screen printing process, and the top portion of the finger electrodes and the bus electrodes are formed by a second screen printing process. The electrode structure can enhance the conductivity of electrodes and increase the reliability and yield of the solar cell, thereby achieving the purposes of increasing the photo-electro transition efficiency of the solar cell and decreasing the manufacturing cost.
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