Amorphous and Microcrystalline Silcon Solar Cells

摘要

We review the progress made by amorphous silicon solar cells, including the emerging technology of solar cells of microcrystalline silicon. The long-term trend in the efficiency of stabilized laboratory cells based on a-Si:H has been a rise of approx0.6 percent per year. The recent trend in the a-Si, Ge:H cell efficiency alone, measured in the spectral window assigned to the bottom device in a triple-junction cell, has been an increase of approx0.16 percent pre year. These improvements have brought within reach the target of 15 percent efficiency identified by EPRI and DOE for widespread application. Our review leads to an identification of areas of promising research, with emphasis on the fundamental science required to reach the 15 percent target, and then to move to the next-level efficiency goal.