Laser-nanostructured Ag films as substrates for surface-enhanced Raman spectroscopy
Henley, SJ, Carey, JD and Silva, SRP (2006) Laser-nanostructured Ag films as substrates for surface-enhanced Raman spectroscopy APPLIED PHYSICS LETTERS, 88 (8), ARTN 0. ? - ?.
Pulsed-laser (248 nm) irradiation of Ag thin films was employed to produce nanostructured Ag/SiO2 substrates. By tailoring the laser fluence, it was possible to controllably adjust the mean diameter of the resultant near-spherical Ag droplets. Thin films of tetrahedral amorphous carbon (ta-C) were subsequently deposited onto the nanostructured substrates. Visible Raman measurements were performed on the ta-C films, where it was observed that the intensity of the Raman signal was increased by nearly two orders of magnitude, when compared with ta-C films grown on nonstructured substrates. The use of laser annealing as a method of preparing substrates, at low macroscopic temperatures, for surface-enhanced Raman spectroscopy on subnanometer-thick films is discussed.
|Divisions :||Faculty of Engineering and Physical Sciences > Electronic Engineering > Advanced Technology Institute > Nano-Electronics Centre|
|Date :||20 February 2006|
|Identification Number :||10.1063/1.2178387|
|Uncontrolled Keywords :||Science & Technology, Physical Sciences, Physics, Applied, Physics, THIN-FILMS, SILVER, DEPOSITION, CARBON, GOLD|
|Related URLs :|
|Depositing User :||Mr Adam Field|
|Date Deposited :||27 May 2010 14:08|
|Last Modified :||28 Nov 2013 14:01|
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