Abstract
AFM nanomachining was performed on a thin resist pre-coated on a sapphire substrate, and then metal was coated. After metal-coating and lift-off, nanostructures were created successfully. Specifically, various gold nanopatterns could be created by this stable process. The selective growth of zinc oxide nanowires was realized with the use of the created catalytic gold nanopatterns by a VLS (vapor-liquid-solid) growth mechanism. Various laser sources were used as the exciting optical sources to measure the photoluminescence of the nanowires. The obvious two peaks in UV and blue zone (377 nm, 470 nm) of zinc oxide nanowires PL, and the lasing phenomenon has been observed. Finally, we observe zinc oxide nanowires OM dark field image, the blue fluorescence has been observed. For zinc oxide nanowires, we can find peak at 410 nm in both OM and pulse laser photoluminescence spectra.