We investigate electrical photoresponse of multilayer graphene decorated with CdSe/ZnS quantum dots. It was found that photoresponse of these hybrid structures depends on quantum dot photoluminescence quantum yield. We demonstrate in uence of external factors (light exposure and treatment with ammonia vapors) on photoluminescence quantum yield of quantum dots and electrical photoresponse of the hybrid structures.
We present technique of obtaining complex hybrid structures combining the multi-walled carbon
nanotubes or multi-layer graphene and luminescent hydrophobic semiconductor core/shell quantum dots
CdSe/ZnS. As a result, a formation of quantum dot decorated carbon nanotubes and graphene films is evidenced
by 2D microluminescence and micro-Raman mapping of quantum dots and nanocarbons, respectively, where a
spatial correlation between the luminescence and Raman signals is found.