Sexithiophene adlayer growth on vicinal gold surfaces

Article Abstract:

The initial stages of vacuum-deposited sexithiophene (alpha-6T) adlayer formation of Au(111) vicinal surfaces at room temperature. The in situ scanning tunnel microscopy and photoemission spectroscopy reveal a step edge-driven growth of alpha-6T on the Au(111) vicinal surfaces that first leads to the formation of an ordered monolayer, comprising of two phases with the molecular major axes aligned along the step edges.

Photoemission, Monomolecular films, Thiophene

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Effects of intensity and energy of CW UV light on the growth of gold nanorods

Article Abstract:

Growth of gold nanorods (AuNRs) by photochemical reduction of HAuCl4 in micelle solution of hexadecyltrimethylammonium bromide (CTAB) and tetraoctylammonium bromide (TOAB) is studied. The effects of 300 and 254 nm UV light sources and their photon flux on the anisotropic growth of gold nanoparticles are investigated by controlling duration of irradiation and the number of lamps within a photochemical reactor.

Photochemistry, Ammonium compounds, Ammonium chloride, Ammonium paratungstate, Ammonium salts, Atomic properties

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