NOVELTY - The electrode has a porous structure containing a catalyst, a chromophore and a redox couple. The porous structure includes a set of electrically conductive nanoparticles adjoining each other. The set of electrically conductive nanoparticles forms a meandering electrical path that connects the nanoparticles together. An atomic layer includes thickness less than 200 nano meter, and is placed conformally on the electrically conductive nanoparticles to form an exterior surface for reception of charge carriers by a layer deposited semiconductive coating.    USE - Electrode e.g. photoelectrode and fluorine-tin-oxide (FTO)-nano antimony-doped tin oxide (ATO) film supported tin-oxide photo electro chemical (PEC) electrode, for enabling conversion of solar energy, in automobiles. Can also be used for a non-light absorbing electrode.    ADVANTAGE - The electrode ensures that improvement in photocurrent densities for FTO-nano-ATO-tin oxide can be attributed to the improved lifetime of holes and reduction of charge recombination in a cost-effective manner. The electrode attains unity incident light-harvesting efficiency even with thicker nanoparticle films. The electrode defines solar fuels that can be produced on-site for on-demand use or be stored for power generation at nighttime.    DETAILED DESCRIPTION - The layer deposited semiconductive coating is made of p-type material and a n-type material selected from a group consisting of a silicon coating, gallium arsenide coating, germanium coating, gallium nitride coating, gallium phosphate coating, cadmium sulfide coating, cadmium selenium coating, tin oxide coating, zinc oxide coating, tantalum titanium oxide coating, titanium oxide coating, zinc oxide coating, niobium coating, nitrogen coating, tungsten coating, ferrous oxide coating, strontium titanium oxide coating, barium titanium oxide coating, nitric oxide coating, copper coating and molybdenum coating. The chromophore is selected from a group consisting of a monomer, oligomers, polymer, porphyrin, pyrene, perylene, xanthene, phthalocyanine, coumarin, rhodamine, buckminsterfullerene, thiophene, transition metal polypyridyl complex, ferrocene, methyl viologen and a donor-acceptor dye. The catalyst is selected from a group consisting of an iridium catalyst, iron catalyst, cobalt catalyst, ruthenium catalyst, osmium catalyst, nickel catalyst, manganese catalyst, platinum catalyst, palladium catalyst, transition metal catalyst, transition metal oxide and a transition metal complex. The electrically conductive nanoparticles are selected from a group consisting of zinc-doped tin oxide nanoparticles, tin-doped indium oxide nanoparticles, fluorine-doped tin oxide nanoparticles, antimony tin oxide nanoparticles, gallium zinc oxide nanoparticles, indium zinc oxide nanoparticles, copper aluminum oxide nanoparticles, fluorine-doped zinc oxide nanoparticles, strontium-copper-oxide nanoparticles, doped delafossite conducting oxide material based on copper-manganese-oxide, graphene nanoparticles, carbon nanoparticles, aluminum zinc oxide nanoparticles, organic dyes nanoparticles, aromatic compound nanoparticles, organic conducting polymer nanoparticles, conjugated bond polymer nanoparticles and charge-transfer molecular complex polymer nanoparticles when manganese includes alum.    DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of a photovoltaic-water electrolyzer device.