NOVELTY - Growing nano-silicon based zinc oxide nanowire or titanium dioxide nanowire, on a nano-silicon substrate, comprises carrying out spin coating of zinc oxide or titanium dioxide nanowire with an organic polymer solution using spin coating method, for 5-60 minutes, to produce an organic polymer layer; annealing the organic polymer layer in an inert gas atmosphere at 200-400 degrees C to obtain a nanowire/nano-silicon three-layered structure; and carrying out vapor deposition of magnesium fluoride antireflection coating, a front nickel/gold electrode and a back metal electrode.    USE - The method is useful in producing semiconductor nanowire-based organic/inorganic composite solar cells, which are useful for manufacturing silicon-based solar cell devices.    ADVANTAGE - The method: is simple and easy to carryout; requires mild reaction conditions; and achieves a repetition rate of 100%.    DETAILED DESCRIPTION - Growing nano-silicon based zinc oxide nanowire or titanium dioxide nanowire having a diameter of 1-5000 nm and a ratio of length to diameter of 10-500, on a nano-silicon substrate using low-temperature liquid phase chemical method, high-temperature chemical vapor deposition or low-temperature electrolysis, comprises carrying out spin coating of zinc oxide or titanium dioxide nanowire with an organic polymer solution (0.2-10 mg/ml) comprising poly(3-hexylthiophene) or poly(2-methoxy-5-(2-ethylhexyloxy)-1,4-phenylenevinylene or poly(3-octylthiophene) using spin coating method, for 5-60 minutes, with a rotational speed of 1500-8000 revolutions per minute, to produce an organic polymer layer having a thickness of 0.1-1 mu m on the zinc oxide nanowire or titanium dioxide; annealing the organic polymer layer in an inert gas atmosphere at 200-400 degrees C to obtain a nanowire/nano-silicon three-layered structure with an organic polymer and a compound of group (II)-(VI) of the periodic table; and carrying out vapor deposition of magnesium fluoride antireflection coating, a front nickel/gold electrode and a back metal electrode. The solvent of organic polymer solution is chloroform or pyridine.