TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Process: The process further comprises substituting hydrogen for halogen remaining in (I) obtained using lithiumaluminum hydride. The alkali metal or alkali earth metal is lithium sodium, potassium, rubedium, berillium, magnesium or calcium. Preferred Method: In the method of forming a silicon thin film, the thin film is formed on the substrate using a coating method of a screen printing method, a printing method, a spin coating method, a dipping method or an ink spraying method. The conducting wire is formed by chemical bonds between conductive organic materials, dispersion force, electrical attractive force and/or hydrogen bonds. The chemical bonds are formed through a condensation reaction by applying heat at 100-500 degrees C for 1 minute to 3 hours or irradiating ultraviolet radiation on the thin film.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preparation (Claimed): Preparation of (I) comprises: substituting a conductive organic material of formula (H-((CH3)C=C(CH3))a-(Ar1)b-((CH3)C=C(CH3))c-H) (a1) or (H-(C?=C)a-(Ar1)b-(C?=C)c-H) (b1), with alkali metals or alkali earth metals, and reacting the conductive organic material substituted with alkali metals or alkali earth metals with a silicon cluster, thus substituting the silicon cluster with the conductive organic material.Ar1 = 2-30C heteroaryl or heteroarylene (includes one or more heteroatoms of S, O, N or Se), or 6-30C aryl or arylene (all optionally substituted with a OH, 1-20C alkyl (optionally branched or cyclic), 1-20C alkoxyalkyl, 1-16C cyclic alkoxy or halo), preferably 47 cyclic compounds e.g. thiophene, thieno(3,2-b)thiophene, 9H-fluorene, benzyl, naphthyl, thiazole, (1,3,4)thiadiazole, isobenzofuran, furan and pyridine; anda, b, c = 0-20.Provided that a+b+c greater than 0.Preferred Components: (I) is soluble in an organic solvent such that the amount is 0.1-50 wt.%.The conductive organic material is alkylene compound of formula (-((CH3)C=C(CH3))a-(Ar1)b-((CH3)C=C(CH3))c-H) (a) or (-(C?=C)a-(Ar1)b-(C?=C)c-H) (b).The conductive organic material is (4E,6Z)-2,3,4,5,6-pentamethyl-octa-2,4,6-triene, hepta-1,3,5-triyne, 4,4''-dimethyl-(1,1';4',1'')terphenyl, 5,5''-dimethyl-(2,2';5',2'')terthiophene, 5,2''-dimethyl-(2,5';2',5'')terthiazole, (1,2-dimethyl-propenyl)-benzene, 2-prop-1-ynyl-thiophene, 2-prop-1-ynyl-thiazole, 4-methyl-4'-((E)-1-methyl-propenyl)-biphenyl, 5'-methyl-5-((Z)-1-methyl-propenyl)-(2,2')bithiophenyl, 2'-methyl-5-((Z)-1-methyl-propenyl) -(2,5')bithiazolyl, 1-(1,2-dimethyl-propenyl)-4-((E)-1-methyl-propenyl)-benzene, 2-(1,2-dimethyl-propenyl)-5-((E)-1-methyl-propenyl)-thiazole, 1-ethynyl-4-prop-1-ynyl-benzene or 2-ethynyl-5-prop-1-ynyl-thiophene. The silicon thin film further comprises a conducting wire, which is silicon cluster containing 3,4,5,6-tetramethyl-octa-1,7-diene compound of formula (Si-cluster-C=C-(CH(CH3))4-C=C-Si-cluster), (3E,5E)-octa-3,5-diene-1,7-diyne of formula (Si-cluster-C?=C-C=C-C=C=C?=C-Si-cluster), silicon cluster containing bis triphenyl compound of formula (a), (b), silicon cluster containing di thiazolidine compound of formula (c) or silicon cluster containing diphenyl compound of formula (d). The organic solvent is hydrocarbon solvent, an alcohol solvent, an ether solvent, an aromatic solvent or a polar solvent. EXAMPLE - Diethynylbenzene (6 g) was dissolved in anhydrous tetrahydrofuran (40 ml), and the mixture was put in 2-neck flask (100 ml). Then, the flask was placed on a heating mantle, and the mixture was put in the flask was stirred. Subsequently, butyl lithium (33.26 ml) was slowly added to the stirred solution and the mixed solution was reacted at 100 degrees C for 2 hours, thus the diethynylbenzene was substituted with lithium ion. Trichlorosilane (3.8 g) and magnesium (1.9 g) was dissolved in tetrahydrofuran in 3-neck flask (100 ml), and the mixture was reacted at 0 degrees C for 4 hours, thus obtaining a silicon cluster solution. An organosilicon cluster was extracted from the silicon cluster solution by removing the solvent e.g. tetrahydrofuran (THF), under reduced pressure to obtain a golden yellow solid. The obtained solid was dissolved in THF. Then, lithium aluminumhydride (0.13 g) was dissolved in THF (60 ml) and the mixture was put in 2-neck flask (250 ml). Subsequently, the THF solution containing the golden yellow solid was slowly added from the flask, which was stirred for 15 hours. After the reaction was completed, the solvent including THF was removed from the stirred solution to give golden yellow nanocluster (3.1 g).