TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Structure: The reinforcing structure comprises nano filler containing particles each having diameter of less than 1 mu m. The reinforcing structure comprises a metal foil and a fiber reinforcing structure. The metal foil is formed from stainless steel, titanium, aluminum, kovar, invar, tantalum, brass and/or niobium. Preferred Compound: The nano filler containing particles have fiber configuration or web configuration. The nano-filler containing particles are formed of carbon nanofibers, aluminum-base materials, boron-based materials and/or colloidal silica.    TECHNOLOGY FOCUS - POLYMERS - Preferred Fiber: The fiber reinforcing structure contains woven fabric, nonwoven fabric, bundle of fibers and/or loose fibers. The fiber reinforcing structure is formed of fibers having diameter ranging of 1-100 mu m, or fibers formed of glass, quartz, metal, carbon, sapphire, graphite, nylon, polyester, aramid, polyethylene, polypropylene and/or silicon carbide. Preferred Substrate: The reinforced substrate further comprises a reverse contact layer formed on the surface of the reinforced substrate and a solar absorber layer formed on the reverse contact layer, a window layer formed on the solar absorber layer, an interface layer disposed between the reverse contact layer and the reinforced substrate, a stress relief layer formed on a surface of the reinforced substrate opposing the reverse contact layer, a buffer layer disposed between the solar absorber layer and the window layer, and a metallic grid formed on the upper contact layer. Preferred Material: The base material comprises a silicone material. The silicone material comprises silicone composition chosen from hydrosilylation-curable silicone composition, condensation-curable silicone composition, free radical-curable silicone composition, cyclic dihydrogen polysiloxane, and silicone composition containing hydrogen polysiloxane. Preferred Layer: The reverse contact layer comprises molybdenum, molybdenum with oxygen, aluminum and/or silver. The solar absorber layer comprises a copper group I-III-VI material and a silver based group I-III-VI material, or alloy of gallium, aluminum, boron, sulfur and/or tellurium. The solar absorber layer comprises sub layers. At least one sub layer is formed of an amorphous-silicon based material and a micro-silicon based material. The solar absorber layer has three sub layers forming p-i-n structure. The interface layer is formed of copper, brass, and/or indium tin oxide. The window layer contains cadmium sulfide, zinc sulfide, alloy of cadmium-zinc sulfide, zinc oxide, zinc hydroxide, zinc-magnesium oxide, magnesium hydroxide and indium selenide. The upper contact layer contains doped tin oxide, undoped tin oxide, indium-tin oxide alloy, doped zinc oxide and/or undoped zinc oxide. The buffer layer contains intrinsic zinc-oxide, zinc oxide, zinc hydroxide, zinc-magnesium oxide, magnesium hydroxide and/or tin oxide. Preferred Composition: The hydrosilylation-curable silicone composition comprises a silicone resin (A) having silicon-bonded alkenyl group or silicon-bonded hydrogen, an organosilicon compound (B) having at least two silicon-bonded hydrogen atoms or silicon-bonded alkenyl groups per molecule, and in amount favorable to cure silicone resin, and a hydrosilylation catalyst (C). The condensation-cured silicone composition comprises a silicone resin (A2) having at least two silicon-bonded hydroxy group, two silicon-bonded hydroxy groups, or a hydrolysable group, and two hydrolysable groups, a cross-linking agent (B1) having silicon-bonded hydrolysable groups, and a condensation catalyst (C1). The condensation-curable silicone composition alternately comprises a rubber-modified silicone resin (A3) prepared by reacting an organosilicon compound selected from the silicone resin (i), hydrolysable precursor (ii) of silicone resin (i), and a silicone rubber (iii) of formula: R83SiO(R1R8SiO)mSiR83, water, a condensation catalyst (iv), an organic solvent (v), and optionally cross-linking agent (B1) having silicon-bonded hydrolysable groups and condensation catalyst (C1).R8=R1 or hydrolysable group;andm=2-1000.The silicone composition further comprises particulate form inorganic filler. Preferred Compound: The inorganic filler is silica nanoparticles having particle diameter of less than 200 nm. The free radical-curable silicone composition comprises a silicone resin of formula: (R1,R92SiO1/2)w"(R92SiO2/2)x,(R9SiO3/2)y"(SiO4/2)z".R1=same as defined above;R9=R1, alkenyl or alkynyl;w",x",y"=0-0.99;z"=0-0.85;andw"+x"+y"+z"=1.The silicone composition comprises cyclic dihydrogen polysiloxane with H2SiO2/2 units, and having weight-average molecular weight of 1500-1000000 g/mol, and is liquid at room temperature. The silicone composition comprises hydrogen polysiloxane having a siloxane unit formula: (H2SiO2/2)x"'(HSiO3/2)y"'(SiO4/2)z"'.x"'= greater than or equal to 0.12 and less than 1;y"'=0- 0.88;z"'=0-0.3, however y"' and z"' are not simultaneously 0;andx"'+y"'+z"'=1.Preferred Resin: The silicone resin is resin of formula: (R1R22SiO1/2)w(R22SiO2/2)x(R2SiO3/2)y(SiO4/2)z, or a rubber-modified silicone resin which is reaction product of the silicone resin and at least one silicone rubber (D) chosen from rubbers of formulae: R5R12SiO(R1R5SiO)cSiR12R5 and R1R22SiO(R22SiO)dSiR22R1, in presence of hydrosilylation catalyst and optionally an organic solvent.R1=1-10C hydrocarbyl or 1-10C halogen-substituted hydrocarbyl group, both free of aliphatic unsaturation;R2=R1, H or alkenyl;w=0-0.9;x=0-0.9;y=0-0.99;z=0-0.85;w+x+y+z=1;y+z/(w+x+y+z)=0.1-0.99;andw+x/(w+x+y+z)=0.01-0.9.The silicone resin has at least two silicon-bonded alkenyl groups per molecule. The silicone resin (A2) is a resin of formula: (R1R62SiO1/2)w'(R62SiO2/2- )x'(R6SiO3/2)y'(SiO4/2)z'.R11=1-10C hydrocarbyl or 1-10C halogen-substituted hydrocarbyl, both free of aliphatic unsaturation;R6=R1, -H, -OH or hydrolysable group;w'=0-0.8;x'=0-0.95;y'=0-1;z'=0-0.99;andw'+x'+y'+z'=1.The silicone resin (A2) has at least two silicon-bonded hydrogen atoms, hydroxy groups or hydrolysable groups per molecule. The sum of R1SiO3/2 units and SiO4/2 units is more than zero.