Patent ID: 9559236
Date: 2017-01-31
CPC Classifications: C30B,H01L,Y02E,Y02P

Claim:
1. A solar cell, comprising: a monocrystalline silicon semiconductor substrate having a light-receiving surface and a back surface; a dielectric layer disposed directly on the back surface of the substrate; a monocrystalline silicon layer disposed directly on the dielectric layer, wherein the dielectric layer is between the substrate and the monocrystalline silicon layer; wherein the monocrystalline silicon layer comprises a first monocrystalline silicon emitter region doped with an impurity of a first conductivity type and a second monocrystalline silicon emitter region doped with an impurity of a second, opposite conductivity type, wherein the first monocrystalline silicon emitter region and the second monocrystalline silicon emitter region are in direct contact with the dielectric layer; and wherein the first monocrystalline silicon emitter region is in direct contact with the second monocrystalline silicon emitter region forming a P/N junction between the first monocrystalline silicon emitter region and the second monocrystalline silicon emitter region.