Flexible Monocrystalline Thin Silicon Cell

摘要

A device, system, and method for solar cell construction and layer transfer are disclosed herein. An exemplary method of solar cell construction involves providing a silicon donor substrate. A porous layer is formed on the donor substrate. A first portion of a solar cell is constructed on the porous layer of the donor substrate. The solar cell and donor substrate are bonded to a flexible substrate. The flexible substrate and the first portion of a solar cell are then separated from the donor substrate at the porous layer. A second portion of a solar cell may then be constructed on the first portion of a solar cell providing a single completed solar cell.

主权项

1. A low porosity layer silicon donor substrate;
a n+ doped epitiaxial silicon film on the porous layer; a n− doped epitiaxial silicon film on the n+ doped epitiaxial silicon film; a passivation layer with openings on top of the n− doped epitiaxial silicon film; an aluminum layer with emitters within the openings; and a flexible substrate wherein a metal coating bonds the flexible substrate to the aluminum layer.