METHOD FOR PRODUCING THIN-FILM SOLAR CELLS

摘要

A method to produce thin film solar cells in superstrate or substrate configuration is an efficient way to minimize the loss due to absorption in CdS layer and to eliminate the CdCl2 activation treatment step. This is achieved by applying a sacrificial metal-halide layer between the CdS-layer and the CdTe-layer of the solar cells.

主权项

1. Method for producing a solar cell in superstrate configuration, comprising the steps:
a. Making available a transparent substrate, b. Applying a transparent front contact layer, c. Applying a CdS layer, d. Applying a sacrificial layer of a metal-halide compound, e. Applying a CdTe layer and break-up of the sacrificial layer, including diffusion of the major part of the metal ions into the CdS layer and the major part of the halide ions into the CdTe layer, f. Applying the back contact layer.