Patent ID: 9502587
Filing Date: 2016-11-22
CPC Classification: H01L,Y02E,Y02P

Claim Text:
1. A solar cell, including; a substrate with a first region and a second region, wherein the first region includes at least a first electrical conductivity and the second region includes at least a second electrical conductivity, wherein the second electrical conductivity is greater than the first electrical conductivity, wherein the substrate includes a dopant profile, wherein the dopant profile varies monotonically from a first edge of the substrate in the first region to at least a second edge of the substrate in the second region, wherein the difference in the electrical conductivity of the first and second regions is dependent on the dopant profile; a passivation on a surface of the substrate; and a contact-structure on the surface of the substrate, wherein the contact-structure includes a plurality of contacts spaced apart at a plurality of distances; wherein the plurality of distances includes at least a first distance and a second distance; wherein two contacts of the plurality of contacts are disposed at the first distance with respect to each other in the first region; wherein two further contacts of the plurality of contacts are disposed at the second distance with respect to each other in the second region; wherein the second distance is greater than the first distance, wherein the first distance and the second distance varies proportionally to the dopant profile, and wherein the plurality of distances increases from the first edge to the second edge; wherein the passivation is a rear-side passivation, wherein the surface of the substrate is a rear-side of the substrate, and wherein the contact-structure is a rear-side contact-structure.