Figure 2From: Si solid-state quantum dot-based materials for tandem solar cellsMultilayer deposition of alternating Si-rich dielectric and stoichiometric dielectric in layers of a few nanometers. On annealing, the excess Si precipitates out to form small nanocrystals of a size determined by the Si-rich layer thickness. The nanocrystal or quantum dot size is therefore uniform.Back to article page