Functional silver nanostructured surfaces applied in SERS and SIMS |
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| Authors: | Lenka Škantárová Andrej Oriňák Renáta Oriňáková Monika Jerigová Monika Stupavská Dušan Velič |
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| Affiliation: | 1. Department of Analytical Chemistry, Faculty of Sciences, Comenius University, , SK, 842 15 Bratislava 4, Slovak Republic;2. Department of Biochemistry, Faculty of Sciences, Comenius University, , SK, 842 15 Bratislava 4, Slovak Republic;3. Department of Physical Chemistry, Faculty of Science, P. J. ?afárik University, , SK, 041 54 Ko?ice, Slovak Republic;4. International Laser Center, , SK, 84104 Bratislava, Slovak Republic;5. Department of Physical and Theoretical Chemistry, Faculty of Natural Sciences, Comenius University, , SK, 842 15 Bratislava 4, Slovak Republic |
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| Abstract: | Present article deals with functionality of silver nanostructured surfaces prepared by potentiostatic electrochemical deposition on the paraffin impregnated graphite electrode as template‐free substrates. The effect of the electrodeposition conditions on two silver surface functions: analytical signal enhancement in Surface‐enhanced Raman spectroscopy and pre‐ionization function, applied in secondary ion mass spectrometry (SIMS) is reported. Functional silver nanostructured substrate was prepared at a potential ?850 mV with a deposition duration of 20 min. Analytical signal enhancement factors of 3.2 ×105 for Raman peak at 649 cm?1, 3.0×105 for peak at 810 cm?1 and 2.7×105 for peak at 1539 cm?1 were determined for Rhodamine 6G at deposited surface. Slight pre‐ionization effect has been observed in SIMS, and 1.2×105 fold signal enhancement was established for fragment of Rhodamine 6G with m/z 429 (M‐CH3‐Cl). Electrochemical preparation of nanostructures represents a step towards surface integration directly into miniaturized systems and sensors. Copyright © 2013 John Wiley & Sons, Ltd. |
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| Keywords: | functional nanostructure electrodeposition SERS SIMS silver |
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