Fabrication of silicon solar cells by laser processing

We fabricated silicon solar cells using a laser processing technique. The goal here was to examine how laser processing can possibly be used for such an application. As the first attempt we tried to fabricate solar cells by the simplest method possible. Among a variety of laser processing techniques that are available for the present application, we chose pulsed laser deposition (PLD). Using PLD, we deposited thin n-Si layers on p-Si wafers, and successfully formed the p-n junction that is essential for the photovoltaic effect.