A thick film paste composition for {TAIL ~ use} in forming an electrical connection in a photovoltaic device comprising a semiconductor substrate having at least one insulating {HEAD ~ layer} on a main surface thereof, the composition comprising: 
A thick film paste composition for { TAIL ~ use } in forming an electrical connection in a photovoltaic device comprising a semiconductor substrate having at least one insulating { HEAD ~ layer } on a main surface thereof , the composition comprising :
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