TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Composition: The electrode reformed layer of organic solar cell contains titania, aluminum doped zinc oxide, boron doped zinc oxide, gallium doped zinc oxide, nitrogen doped zinc oxide and/or indium tin oxide, cesium carbonate and/or titanium(diisopropoxide)bis(2,4-pentadionate), cadmium sulfide, zinc sulfide, manganese sulfide, zinc oxysulfide, zinc-indium selenide and/or indium sulfide and/or tetrakis(dimethylamino)ethylene, poly(ethylene oxide), hexadecanthiol and/or 1H,1H,2H,2H-perfluoro decanethiol.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Layer: The photo-crosslinking photoactive layer is mixed material layer containing hole acceptor material comprising cyano pigment, indigo, thioindigo pigment, melocyanine compound, cyanine compound, phenylene vinylene compound, polythiophene, and/or thiophene derivative, and electron-acceptor comprising 60C fullerene, methyl(6,6)-phenyl-61C-butyrate, methyl(6,6)-phenyl-71C-butyrate, fullerene derivative, perylene derivative, cadmium sulfide, zinc sulfide, zinc oxysulfide, zinc selenide, zinc-indium selenide and/or indium sulfide. Preferred Composition: The photoresist contains 4,4'-diazido-2,2'stilbenedisulfonic acid disodium salt, 1,3-diazido-2-(azidomethyl)-2-propylammonium salt, 2,6-bis(4-azidobenzylidene)-4-methylcyclohexanone, 4-azidophenylsulfone, bis(4-azidobiphenyl), bis(4-azidophenyl)methanone, 1-(4-azidophenoxy)-4-azidobenzene, bis(4-azidosulfonylbiphenyl), 2,3-diazido-2,3-diethoxy-d-mannose, 2,4-diazido-2,4,6-triethoxy-L-hexopyranose, 1,5-diazido-3-nitrazapentane, 1,3-diazido-2-(azidomethyl)-2-methylpropane, 1,3-diazido-2-(azidomethyl)-2-methylpropane and/or bis(-azido-2N:N)bis(azido(N,N-dimethyl-1,3-propylenediamine-2N,N)copper(II)).    TECHNOLOGY FOCUS - POLYMERS - Preferred Composition: The organic semiconductor material contains poly(3,4-ethylenedioxythiophene):poly(4-styrene sulfonate), poly(3,4-ethylenedioxythiophene):poly(4-styrene sulfonate):polyglycol(glycerol), polyaniline:poly(4-styrene sulfonate), polyaniline:camphor sulfonic acid, poly(4,4'-dimethoxy bithophene) and/or polymer having arylamine group or aromatic amine group.