کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1232802 1495275 2012 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Experimental and DFT theoretical studies of surface enhanced Raman scattering effect on the silver nano arrays modified electrode
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
Experimental and DFT theoretical studies of surface enhanced Raman scattering effect on the silver nano arrays modified electrode
چکیده انگلیسی

Well-ordered silver nano arrays, prepared using anodic aluminum oxide (AAO) template by laser molecular beam epitaxy (L-MBE) method, were adhered to the work electrode using conductive adhesive to be a Surface-enhanced Raman scattering (SERS) substrate. Variable SERS signals of paranitrobenzoic acid (PNA) on the electrode modified with silver nano arrays were recorded with electric potential ranging from 0.1 to −0.5 V. The SERS spectra of PNA using DFT-B3PW91 with lanl2dz based on two models were calculated. It indicate that the adsorption orientation of probe molecules on the silver nano arrays with potential change of the electrode.

Surface enhanced Raman scattering spectra of probe molecules paranitrobenzoic acid were recorded on the electrode of silver nano arrays. The SERS spectra of PNA using DFT-B3PW91 with lanl2dz based on two models were calculated, and compared with the experimental results. It shows the adsorption transformation of probe molecules on the silver nano arrays with potential change of the electrode.Figure optionsDownload as PowerPoint slideHighlights
► Well-ordered silver nano arrays prepared using AAO template by laser molecular beam epitaxy method.
► SERS spectra of probe molecules were recorded on silver nano arrays at potential ranging from 0.1 to −0.5 V.
► PNA SERS spectra were calculated based on two models, which indicates the adsorption orientation of PNA on the silver nano arrays with potential change of the electrode.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy - Volume 93, July 2012, Pages 363–366
نویسندگان
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