Crystal silicon quantum dot stromatolite solar cell

The utility model provides a crystal silicon quantum dot stromatolite solar cell, wherein, including aluminium back of the body electric field, crystalline silicon substrate, emitter junction, silicide layer, transparent film layer and the metal electrode who stacks gradually, wherein, the silicide layer includes tunnel junction and sub - battery, contains silicon quantum dot in the sub - battery, tunnel junction and sub - battery alternately and pile form multilayer structure, from emitter junction to transparent film layer the layer thickness gradual change of tunnel junction among the multilayer structure is from emitter junction to transparent film layer the layer thickness gradual change of multilayer structure neutron battery. The utility model provides a crystal silicon quantum dot stromatolite solar cell can fully absorb ultraviolet band and visible region different energy's photon, strengthens battery photo -generated current, effectively improves the open circuit voltage and the photoelectric conver