TECHNOLOGY FOCUS - ELECTRONICS - Preferred Components: The solar terrestrial light absorbing conductive metallic oxide structure has absorption coefficient of greater than or equal to 1x 104 cm-1 for electromagnetic radiation having wavelength of 280-1000 nm. The solar terrestrial light absorbing conductive metallic oxide structure has a reflectance of less than 50% for electromagnetic radiation having wavelengths of 280-1000 nm. The solar terrestrial light absorbing conductive metallic oxide structure comprises a film having a thickness of greater than or equal to 25 nm, preferably greater than or equal to 50 nm, especially 100 nm and an absorbance greater than 25%, preferably greater than or equal to 40%, especially greater than or equal to 60% nm for AM1.5G solar spectrum radiation having wavelengths of 280-1000 nm. The solar terrestrial light absorbing composite is a visible light absorbing composite or where the solar terrestrial light absorbing conductive metallic oxide structure is a visible light absorbing conductive metallic oxide structure. The solar terrestrial light absorbing conductive metallic oxide structure has a carrier concentration of greater than or equal to 1020 cm-3. In the solar terrestrial light absorbing composite, a ratio of a first carrier concentration of the solar terrestrial light absorbing conductive metallic oxide structure to a second carrier concentration of the chemically-stable catalytic oxide is greater than or equal to 1000s. The solar terrestrial light absorbing conductive metallic oxide structure comprises a correlated metal oxide. The solar terrestrial light absorbing conductive metallic oxide structure is an epitaxial-oriented film, (001)-oriented film, (110)-oriented film or (111)-oriented film. Preferred Composite: The solar terrestrial light absorbing composite comprises a photovoltaic device, where the photovoltaic device comprises: substrate and multilayer film, where a first layer of the multilayer film comprises the solar terrestrial light absorbing conductive metallic oxide structure provided as a layer over at least a portion of the substrate, where a second layer of the multilayer film comprises the chemically-stable catalytic oxide structure provided as a layer over and in contact with at least a portion of the first layer and where a third layer of the multilayer film comprises a transparent conducting electrode layer provided over and in contact with at least a portion of the second layer. The solar terrestrial light absorbing composite comprises a multilayer film comprising several layers of different solar terrestrial light absorbing conductive metallic oxide structures positioned beneath a layer of the chemically-stable catalytic oxide structure. The solar terrestrial light absorbing composite comprises photocatalytic material, where the chemically-stable catalytic oxide structure and the solar terrestrial light absorbing conductive metallic oxide structure are provided as a colloid, emulsion, solution, dispersion, suspension, foam, paint, coating, particle, nanoparticle, core-shell material, nanowire, nanotube, porous material, thin film, thick film, plate, ceramic part, a ceramic tile, a gel, a network structure, mesh, foil, gauze, sponge and/or membrane.    TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Components: The solar terrestrial light absorbing conductive metallic oxide structure comprises a metal oxide selected from SrRuO3, LaNiO3, SrVO3, La0.7Sr0.3MnO3, La0.5Sr0.5CoO3, La1, Srx1MnO3, La1, Srx1CoO3, Cax1Srx1-1RuO3, Ca2-x1Srx1RuO4, La1-x1Cax1MnO3, Cax1Srx1-1VO3, Lax11Srx1-1VO3, Lax11Srx1-1NiO3, Sr1-x1NbO3, Lax11Sr1-x1TiO3, Lax1Srx1-1CuO3, Lax1Srx1-1Mny1Co1-y1O3, SrFeO3, Cox1Ni1-x1FeO4, Nix11Mg1-x1Fe2O4, Znx1Fe1-x1O, SrTiO3, La2x1Sr2-2xTiO5, La2xSr2-2xTi3O3, La2xSr2-2xTi2O7, Sr3Ti2O7, PbTiO3, Sm2Ti2S2O5, K2-x1-yRbx1Csy1La2Ti3O10, PbBi4Ti4O15, BaTi4O9, K2-x1-y1Rbx1Nay1Ti6O13, La4CaTi5O17, Tix1Zr1.x1(PO4)4, Rb4xK4-4xTamNb6-mO17, Li1-x1-yNax1Kx1TaO3, La1/3TaO3, InTaO4, Sr1-x1-y1Bax1Sny1Ta2O6, Ni1-x1-y1Mnx1Coy1Ta2O6, Cr1-x1Fex1TaO4, Ca2Ta2O7, BiLa1-x1Yx1TaO7, Sr2-2xLa2xTa2O7, H2-2xK2xLa2/3Ta2O7, H2SrTa2O7, K2Sr1.5Ta3O10, KBa2Ta3O10, Sr4-4xBa4xTa2O9, Sr5-5xBa5xTa4O15, K3Ta3Si2O13, K3Ta3B2O12, Y3-x-yYbx1Gdy1TaO7, LnTaO4, RbLn'Ta2O7, (M1)4Nb6O17 or K4Nb6O17-TiO2. The solar terrestrial light absorbing conductive metallic oxide structure comprises a metal oxide of formula Am1+1(M1)mO3m1+1, AM1O3 or A'y1A''y-1M1O3. The solar terrestrial light absorbing conductive metallic oxide structure is a non-epitaxial film or a polycrystalline film; or comprises a metal oxide having a perovskite structure. The solar terrestrial light absorbing conductive metallic oxide structure comprises a metal oxide having a non-perovskite structure, pyrochlore structure of formula A2BO7, wustite structure of formula Ax1B'1-x1O, magnetite structure of formula A2x1B'2-2xO3, layered perovskite structure of formula Am1B'm1O3m1+2, Am1B'm1-1O3m1, Am1/2B'm1O3m1+1 or Am1B'm1-1O3m1+2, Dion-Jacobsen structure of formula A(B'm1-1C'm1O3m1+1), Ruddlesden-popper structure of formula A2(B'm1-1C'm1O3m1+1) or B'm1-1C'm1O3m1+1, an aurivillius structure of formula (Bi2O2)2+(B'm1-1C'm1O3m1+1)2-, columbite structure of formula AB'2O6, Brownmillerite structure of formula A2B'2-2x1C'2x1O6 or a Ilmenite structure of formula AB'O3; metal oxide having an oxypnictide structure of formula LaOx1F1-x1FeAs, LaOxF1-x1FeAs, CeFeAsOx1F1-x1, SmFeAsOx1F1-x1, Lax1Y1-x1FeAsOy1, NdFeAsOx1F1-x1, PrFeAsOx1F1-x1, GdFeAsOx1 or SmFeAsOx1; cuprate superconducting oxide selected from YBa2Cu3O7 type superconductor, Bi2Sr2Ca2Cu3O10 type superconductor and HgBa2Ca2Cu3O8 type superconductor. The chemically-stable catalytic oxide structure comprises a semiconducting metal oxide having a band gap of greater than or equal to 1 eV. The chemically-stable catalytic oxide structure comprises a material that makes an electronic contact with the solar terrestrial light absorbing conductive metallic oxide structure that is ohmic in nature, Schottky in nature or flat band. When chemically-stable catalytic oxide structure comprises titanium dioxide, then the solar terrestrial light absorbing conductive metallic oxide structure comprises SrRuO3, LaNiO3, SrVO3, La0.7Sr0.3MnO3 or La0.5Sr0.5CoO3. The solar terrestrial light absorbing composite comprises n-n Schottky junction, an n-n ohmic junction, a p-n Schottky junction or a p-n ohmic junction. The absorption of electromagnetic radiation has a wavelength of 280-1000 nm by the solar terrestrial light absorbing conductive metallic oxide structure forms photo-excited charge carriers. The absorption of electromagnetic radiation having a wavelength of 280-1000 nm by the solar terrestrial light absorbing conductive metallic oxide structure forms hot-carriers that are injected to the chemically-stable metal oxide from the solar terrestrial light absorbing conductive metallic oxide structure.Ln=La, Ce, Pr, Nd or Sm;Ln'=La, Pr, Nd or Sm;M1=K or Rb;x,y,x1,y1=0 or 1;A,A',A'',B',C'=alkali metal, alkaline earth metal, rare earth metal or transition metal (preferably Na, K, Ca, Sr, La, Ba, Bi, Pr, Nd, Sm, Gd or Y);M1=transition metal (preferably Ti, V, Cr, Mn, Fe, Co, Ni, Co, Zn, Zr, Nb, Mo, Tc, Ru, or Rh);m1= greater than or equal to 1. EXAMPLE - No suitable example given.