Proposed Route to Thin Film Crystal Si Using Biaxially Textured Foreign Template Layers

摘要: We have developed a new approach to growing photovoltaic-quality crystal silicon (c-Si) films on glass. Other approaches film c-Si focus increasing grain size in order reduce the deleterious effects of boundaries. Instead, we an align grains biaxially (both and out plane) so that 1) boundaries are "low-angle" less effect electronic properties material 2) subsequent epitaxial thickening is simplified. They key our use foreign template layer can be grown with biaxial texture directly