TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Components: The metal flexible substrate is made of metals consisting of copper, nickel, aluminum, iron, chrome, stainless materialsm, zinc oxide, titanium oxide and cesium carbonate. The electron acceptor material includes organic electron affinity material and its derivative consisting of fullerene, including C60 fullerene and the C70 fullerene and 3,4,9,10-perylenetetracarboxylic bisbenzimidazole. Preferred Process: The cutting the large area solar cell in the fibrous form is performed by a slitting process or laser in longitudinal direction, where width of the solar cell is 10-50000 m. The metal wiring is laminated successively on the metal flexible substrate or a transparent electrode or a N-type conductive film or a photoactive layer or a P-type conductive film. The metal wiring is equipped to an upper portion of the polymer flexible substrate, the transparent electrode, the N type conductive film, the photoactive layer, the P-type conductive film or the metal electrode. The P-type conductive film is formed by coating poly(3,4-ethylenedioxythiophene) poly (styrene-sulfonate), nickel oxide, and cupric oxide on the metal wiring. The photoactive layer is formed by an electron donor material and electron acceptor materials.    TECHNOLOGY FOCUS - POLYMERS - Preferred Components: The flexible substrate includes a polymer flexible substrate or a metal flexible substrate. The polymer substrate includes polyethylene terephthalate, polyethylenesulfonic, polyethylene naphthalate, polycarbonate, polymethyl methacrylate, polyimide, ethylene vinyl acetate, amorphous polyethylene terephthalate, polypropylene terephthalate, polyethylene terephthalate glycerol, poly cyclohexylenedimethylene terephthalate, denaturation triacetyl cellulose, cyclo olefin polymer, cycloolefin copolymer, dicyclopentadiene polymer, cyclopentadiene polymer, polyarylate, polyether imide, polydimethylsiloxane, silicone resin and fluorine resin. The electron donor material comprises polythiophene derivative, poly (para-phenylene) derivative, polyfluorene derivative, polyacetylene derivative, polypyrrole derivative, poly vinyl carbazole derivative, polyaniline derivative, polyphenylenevinylene derivative, porphyrin compound and phthalocyanine compound.