FRONT SURFACE ANTI-REFLECTION COATING FOR SOLAR CELLS
A solar cell is disclosed. The solar cell includes a substrate and an anti-reflection coating on the substrate. The anti-reflection coating includes a coating layer on the substrate that includes SiN x , a high refractive index coating layer that includes TiO 2 on the coating layer that includes SiN x , and a coating layer on the coating layer that includes TiO 2 .
1 . A solar cell, comprising:
a substrate; and
an anti-reflection coating on the substrate, the anti-reflection coating comprising:
a coating layer on the substrate;
a coating layer that includes SiN x on the coating layer on the substrate;
a high refractive index coating layer that includes TiO 2 on the coating layer that includes SiN x ; and
a coating layer on the coating layer that includes TiO 2 .
2 . The solar cell of claim 2 , wherein the coating layer on the substrate includes SiO 2 .
3 . The solar cell of claim 2 , wherein the coating layer on the coating layer that includes TiO 2 includes SiN x .
4 . The solar cell of claim 2 , wherein the coating layer on the coating layer that includes TiO 2 includes SiON.
5 . The solar cell of claim 3 , further comprising a coating layer that includes SiON that is on the coating layer that includes SiN x that is on the coating layer that includes TiO 2 .
6 . A solar cell, comprising:
a substrate; and
an anti-reflection coating on the substrate, the anti-reflection coating comprising:
a coating layer on the substrate;
a coating layer that includes SiON on the coating layer on the substrate;
a high refractive index coating layer that includes TiO 2 on the coating layer that includes SiON; and
a coating layer on the coating layer that includes TiO 2 .
7 . The solar cell of claim 6 , wherein the coating layer on the substrate includes SiO 2 .
8 . The solar cell of claim 6 , wherein the coating layer on the coating layer that includes TiO 2 includes SiN x .
9 . The solar cell of claim 6 , wherein the coating layer on the coating layer that includes TiO 2 includes SiON.
10 . The solar cell of claim 8 , further comprising a coating layer that includes SiON on the coating layer that includes SiN x that is on the coating layer that includes TiO 2 .
11 . A solar cell, comprising:
a substrate; and
an anti-reflection coating on the substrate, the anti-reflection coating comprising:
a coating layer on the substrate;
a coating layer that includes SiN x on the coating layer on the substrate;
a coating layer that includes SiON on the coating layer that includes SiN x ;
a high refractive index coating layer that includes TiO 2 on the coating layer that includes SiON; and
a coating layer on the coating layer that includes TiO 2 .
12 . The solar cell of claim 11 , wherein the coating layer on the substrate includes SiO 2 .
13 . The solar cell of claim 11 , wherein the coating layer on the coating layer that includes TiO 2 includes SiN x .
14 . The solar cell of claim 11 , wherein the coating layer on the coating layer that includes TiO 2 includes SiON.
15 . The solar cell of claim 13 , further comprising a coating layer that includes SiON on the coating layer that includes SiN x that is on the coating layer that includes TiO 2 .