TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Layer: The thickness of protective layer, barrier layer and mechanical protective layer is 1-30 nm, 10-500 nm and 1-20 mu m, respectively. The protective layer is formed using ozone as an oxidation source by atomic layer deposition method. Transparent conducting oxide used for organic light emitting device and organic solar cell is chosen from indium tin oxide, indium zinc oxide, indium zinc tin oxide (IZTO), aluminum zinc oxide, indium tin oxide-silver-indium tin oxide, indium zinc oxide-silver-indium zinc oxide, IZTO-silver-IZTO, or aluminum zinc oxide-silver-aluminum zinc oxide. Metal electrode used for organic light emitting device and organic solar cell is made of lithium fluoride/aluminum laminate, calcium/aluminum laminate, calcium/silver laminate, aluminum, silver, gold and/or copper.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Component: Organic layer of organic light emitting device is made of N,N'-di(naphthalene-1-yl)-N,N'-diphenyl-benzidine, copper phthalocyanine, 4,4',4"-tris(2-naphthylphenylamino)triphenylamine, 1,1-bis-(4-bis(4-tolyl)-aminophenyl)cyclohexene, tris-8-hydroxyquinoline aluminum, 2,2',7,7'-tetrakis(N,N-diphenylamino)-9,9-spir (spiro-TAD), 4-(naphthalen-1-yl)-3,5-diphenyl-4H-1,2,4-triazole, iridium tris(2-phenylpyidine), 4,7-diphenyl-1,10-phenanthroline and/or 2,9-dimethyl-4,7-diphenyl-1,10-phenantroline.    TECHNOLOGY FOCUS - POLYMERS - Preferred Component: The organic light emitting device and organic solar cell have glass substrate, metallic substrate or substrate made of polyethylene terephthalate, polyethylene naphthalate, polyethylene, polyethersulfone, polycarbonate, polyarylate and polyimide. The organic layer of solar cell is made of nickel oxide, poly(3,4-ethylenedioxythiophene) poly(styrenesulfonate), polythiophene derivative, polypyrrole derivative, polyvinyl carbazole derivative, polyaniline derivative, polyacetylene derivative, polyphenylene vinylene derivative, fluorine derivative, zinc oxide, titanium oxide and/or tungsten oxide.