The rate of non-radiative energy transfer from semiconductor nanocrystals (or quantum dots) to 2D materials can vary greatly depending on the thickness of these materials. Researchers at Columbia University and Stanford University have now found that the rate of energy transfer increases with increasing thicknesses of adjacent graphene layers, but decreases with increasing thicknesses of molybdenum disulphide ones. The new result is important both fundamentally and for real-world applications, since energy transfer processes are ubiquitous at nanoscale interfaces, such as those in solar cells and photodetectors………
http://nanotechweb.org/cws/article/tech/64404