Abstract: A solar cell, including: a substrate having a front side, rear side and plurality of edges extending between the front and rear sides; a conductive front-side layer on a front-side surface; an electrode on the front side electrically connected to the conductive front-side layer; a highly-doped rear-side layer on a surface of the rear side; a tunnel layer on the highly-doped rear-side layer; a conductive rear-side layer on the highly-doped rear-side layer and the tunnel layer; an electrode on the rear side electrically connected to the conductive rear-side layer; an insulation portion formed adjacent to the front-side surface and on the edges adjacent to the front-side surface. A rear-side layer assembly, including the rear-side layer, the tunnel layer and the conductive rear-side layer, is recessed in the insulation portion so that electrical contact between the highly-doped rear-side layer and the conductive front-side layer is structurally prevented.

Abstract: The present invention is a system and method for specifying custom hair pieces using three-dimensional digital acquisition devices. The system and method described herein uses electronic data acquisition techniques to electronically model a customer's head and hair line characteristics and to electronically record specifications for a custom hair piece. The electronic data containing certain head shape data and hair piece specifications is then electronically transmitted to a hair piece manufacturer for completion of the hair piece.