Abstract
Effect of dispersibility of silver powders in conductive paste on microstructure of screen-printed front contacts and electrical performance of crystalline silicon solar cells was investigated. Two different dispersed degree silver powders were experimented. It is found that the dispersibility of the silver powders strongly affects the microstructure of thick film and electrical performance of solar cells and highly dispersed silver powders can form even compact thick film and exhibit higher open-circuit voltage (V oc ), short-circuit current (I sc ), shunt resistance (R sh ), maximum power (P max ), optimum operating voltage (V mp ), optimum operating current (I mp ), fill factor (FF) and photoelectric conversion efficiency (Eff) than seriously agglomerated silver powders under otherwise identical conditions.
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