Taiwan Semiconductor Manufacturing Comp. Ltd.

TSMC Solid State Lighting Ltd.

Liang-Sheng Yu

Wen-Chin Lee

Wen-Tsai Yen

Yung-Sheng Chiu

Ding-Yuan Chen

Yu-Han Chang

Yung Sheng Chiu

A method for forming a thin film solar cell that includes one or more moisture barrier layer made of a water-insoluble material for protection against water and oxygen damage to the top electrode layer material is disclosed.

Method for forming solar cells

A method of fabricating a solar cell includes forming a front contact layer over a substrate, and the front contact layer is optically transparent at specified wavelengths and electrically conductive. A first scribed area is scribed through the front contact layer to expose a portion of the substrate. A buffer layer doped with an n-type dopant is formed over the front contact layer and the first scribed area. An absorber layer doped with a p-type dopant is formed over the buffer layer. A back contact layer that is electrically conductive is formed over the absorber layer.

Superstrate solar cell

Sulfur-containing chalcogenide absorbers in thin film solar cell are manufactured by sequential sputtering or co-sputtering targets, one of which contains a sulfur compound, onto a substrate and then annealing the substrate. The anneal is performed in a non-sulfur containing environment and avoids the use of hazardous hydrogen sulfide gas. A sulfurized chalcogenide is formed having a sulfur concentration gradient.

Forming chalcogenide semiconductor absorbers

Growing community of inventors

Kaohsiung, Taiwan

Liang-Sheng Yu