Silicon-lithium-lead system, conductive paste and preparation method thereof

Abstract

The present disclosure discloses a silicon-lithium-lead system, a conductive paste and a preparation method thereof, and belongs to the field of solar cells. A silicon-lead-lithium oxide frit includes the following composition: Sia—Pbb—Lic—(Bx—Aly—Biz)-Me-Of, where, 0<a<0.6, 0<b<0.8, 0<c<0.6, x+y+z=d, the x and the y are not zero at the same time, and the z is greater than zero. In the present disclosure, by adding B2O3 and Bi2O3, Al2O3 and Bi2O3, or B2O3, Al2O3 and Bi2O3 at the same time, the prepared frit has greater water resistance, and therefore, a solar cell prepared by using the conductive paste containing glass has good water resistance. In addition, the photoelectric conversion efficiency of the solar cell prepared by using the conductive paste prepared in the present disclosure can also be maintained, or even be slightly improved.

Dependencies are inferred from the claim text.