NOVELTY - The hybrid photovoltaic cell comprises a substrate, a transparent or semi-transparent conductive material layer deposited as a first electrode upon the substrate, a layer of semiconductor nanocrystals deposited upon the transparent or semi-transparent conductive material layer, a semiconductor layer deposited upon the layer of semiconductor nanocrystals, a layer of a metal deposited as a second electrode upon the layer of amorphous silicon, and a layer of a semiconductor material situated between transparent conductive oxide and the layer of semiconductor nanocrystals.    USE - Used as a hybrid photovoltaic cell.    ADVANTAGE - The hybrid photovoltaic cell has improved environmental and photo-stability and increased conversion efficiency in the ultraviolet through carrier multiplication, and is less expensive.    DETAILED DESCRIPTION - The hybrid photovoltaic cell comprises a substrate, a transparent or semi-transparent conductive material layer deposited as a first electrode upon the substrate, a layer of semiconductor nanocrystals deposited upon the transparent or semi-transparent conductive material layer, a semiconductor layer deposited upon the layer of semiconductor nanocrystals, a layer of a metal deposited as a second electrode upon the layer of amorphous silicon, a layer of a semiconductor material situated between transparent conductive oxide and the layer of semiconductor nanocrystals, and a layer of a hole-conducting material situated between the transparent conductive oxide and the layer of semiconductor nanocrystals. The semiconductor layer and nanocrystals are intrinsic or p- or n-type doped layer and nanocrystals respectively. The substrate is made of glass, quartz, transparent plastic e.g. optical-grade polyester, or other materials optically transparent in the spectral range of 200-2000. A thickness of the layer of semiconductor nanocrystals and the layer of amorphous-silicon is 50 nm to 10 mu m and 25 nm to 10 mu m respectively. The photovoltaic cell is characterized by an internal quantum efficiency of 80% and an external quantum efficiency of 50% within a greenblue region of a spectrum. The nanocrystals include a bi-functional ligand as capping molecules. An INDEPENDENT CLAIM is included for a composite.    DESCRIPTION OF DRAWING(S) - The diagram shows a hybrid silicon/cadmium-selenium nacocrystal photovoltaic structure.