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Pyrene and 1-pyrenebuturic acid molecules were deposited on glass and copper substrates with the formation of submicron dots by laser-induced molecular micro-jet implantation through polar and non-polar liquid layers. The size of the smallest 1-pyrenebuturic acid molecules dots prepared on a glass substrate by implantation through water and diiodomethane was estimated to be about 400 nm and 300 nm at laser fluences of 235 J/cm 2 and 326 J/cm 2 , respectively. The fluorescence and the Raman spectra showed that the implanted 1-pyrenebutyric acid molecules did not decompose during the implantation process. The smallest size of a pyrene dot was 700 nm at the laser fluence of 378 J/cm 2 . However, the pyrene dots could be formed only by implantation through a water layer.

The effective one-step physical approach is demonstrated for the fabrication of anatase titanium dioxide nanotubes through r.f. magnetron sputtering of TiO 2 on a highly ordered nanoporous anodic alumina template. The nanostructured TiO 2 benefited from the combination of unique properties of both the sputtering technique that provided well-controlled environment for the fabrication of anatase phase TiO 2 and the porous anodic alumina (PAA) that provided uniform and ordered nanopores. The photocatalytic properties of TiO 2 films were characterized following the degradation of methylene blue molecules under UV light irradiation. The photocatalytic activity of the nanostructured TiO 2 films has been found to be approximately twice higher in comparison with the flat TiO 2 films fabricated at the same conditions.

Organic molecular dots were successfully produced by means of a nano second pulsed dye laser on glass and indium tin oxide (ITO) substrates, with sizes of several hundred nanometres. The method involves the transfer of organic molecules from the source Coumarin 6 (C6) and poly [2-methoxy, 5-(2′-ethyl-hexyloxy)-p-phenylene-venylene] (MEH-PPV) films onto a target material through a water filled space-gap using a laser induced molecular jet (LIMJ). In this way, the organic dots of Coumarin 6 and MEH-PPV molecules were successfully implanted onto the glass and ITO targets. The present results demonstrate the possibility to significantly improve photo electronic or photoelectric devices such as novel photonic crystal and molecular device sensors, and so on.