Patent ID: 8617967

Claim:
A vertically oriented taper-shaped semiconductor nanostructure fabricating method, comprising the following steps: put a non-crystalline on a plate of a vacuum chamber; disposing many metal catalyst particles on the non-crystalline base, wherein the diameters of the metal catalyst particles are at least 1 nm; heating the plate to 200-1000 Celsius degrees; providing a pyrolysis source in the vacuum chamber, and a thermal field is established via the plate and the pyrolysis source in the vacuum chamber; using the pyrolysis source to provide charge species, depositing the charge species on the non-crystalline base, and thus establishing an electric field on the surface of the non-crystalline base, wherein the gradient of the electric filed is disposed orthogonal to the surface of the non-crystalline base; and injecting a reaction gas into the vacuum chamber, wherein the reaction gas is cracked by the pyrolysis source and the flowing direction of the reaction gas is toward the non-crystalline base, so that the gradient of the reaction gas field is disposed parallel to the gradient of the thermal field; whereby a plurality of straight and taper-shaped semiconductor nanometer-wires are grown on the surface of the non-crystalline base, and the angle between each of the straight and taper shaped semiconductor nanometer-wires and the non-crystalline base is 80-90 degrees.