Patent ID: 9595622
Date: 2017-03-14
CPC Classifications: H01L,Y02E,Y02P

Claim:
1. A pyramidal three-dimensional thin film solar cell (3-D TFSC) having enhanced processing properties, comprising: an n-type epitaxial 3-D TFSC substrate comprising a plurality of pyramidal unit cells, wherein said unit cells comprise: said 3-D TFSC substrate further comprising a back n+ doped layer; a single p-type dopant diffusion emitter layer formed in said tapered sidewalls and said top-ridge; an oxide passivation layer formed on said emitter layer, said oxide passivation layer formed on said tapered sidewalls; a blanket metal contact layer formed on said back surface; and front metal contacts formed on said emitter layer, said front metal contacts formed on said top-ridge.