Abstract: A silicon solar cell structure includes a silicon substrate, a phosphorus diffusion doping layer within a surface of the silicon substrate, a passivation layer on the surface of the silicon substrate, a phosphorous-containing oxide layer between the passivation layer and the phosphorus diffusion doping layer within the silicon substrate, and an electrode on the surface of the silicon substrate through the passivation layer and the phosphorous-containing oxide layer.

Abstract: The invention provides a solar cell which includes a solar cell, comprising: a first conductivity type semiconductor substrate, wherein the first conductivity type semiconductor substrate comprises a light receiving surface, a non-light receiving surface and a plurality of through holes extending from the light receiving surface to the non-light receiving surface; a second conductivity type semiconductor layer formed on the non-light receiving surface and extended into the first conductivity type semiconductor substrate, wherein the second conductivity type is opposite to the first conductivity type; a first electrode layer formed on the second conductivity type semiconductor layer; and a second electrode layer formed on the light receiving surface and extended to the non-light receiving surface by the through hole.

Abstract: A solar cell structure includes a semiconductor substrate, a first electrode, a second electrode and at least one via extending through the semiconductor substrate. The first electrode is located in the at least one via, and includes a glass phase and lead oxide, wherein the lead oxide is present in a first weight percentage amount relative to the weight of the glass phase of the first electrode. The second electrode includes a glass phase and lead oxide, and covers the first electrode, wherein the lead oxide of the second electrode is present in a second weight percentage amount relative to the weight of the glass phase of the second electrode. The first weight percentage amount is less than the second weight percentage.