Surface enhanced fluorescence from silver film substrate decorated with nanohole arrays.

Surface enhanced fluorescence from silver film substrate decorated with nanohole arrays.

Journal of nanoscience and nanotechnology (2014-04-18)

Yu Sun, Xiao Qing Yan, Yabing Du, Zhenglong Zhang, Yiping Huo, Fei Gao, Hairong Zheng

ABSTRACT

The fluorescence enhancement effect of Rh6G molecules deposited on the silver film substrate decorated with nanohole arrays was investigated in this paper. The prepared substrate, decorated with nanohole arrays, was fabricated with the deposition of silver films onto the anodic aluminum oxide templates through magnetron sputtering method. Compared with the conventional continuous silver film substrate, the prepared substrate shows better enhanced effect. Particularly, the fluorescence enhancement factor has a relationship with the size and period of the nanohole arrays. The experimental observations were analyzed with local surface plasmon resonance model. The results of current work highlight the importance of strong electromagnetic coupling effect in surface enhanced fluorescence.

MATERIALS

Product Number

Brand

Product Description

295744

Sigma-Aldrich

Silver, wool, diam. 0.05 mm, ≥99.9% trace metals basis

265527

Sigma-Aldrich

Silver, foil, thickness 0.1 mm, 99.9% trace metals basis

265608

Sigma-Aldrich

Silver, wire, diam. 1.0 mm, 99.9% trace metals basis

265594

Sigma-Aldrich

Silver, wire, diam. 1.0 mm, ≥99.99% trace metals basis

265586

Sigma-Aldrich

Silver, wire, diam. 0.5 mm, ≥99.99% trace metals basis

265551

Sigma-Aldrich

Silver, wire, diam. 0.127 mm, 99.99% trace metals basis

265500

Sigma-Aldrich

Silver, powder, <250 μm, 99.99% trace metals basis

326976

Sigma-Aldrich

Silver, foil, thickness 2.0 mm, 99.9% trace metals basis

327050

Sigma-Aldrich

Silver, shot, 1-3 mm, ≥99.99% trace metals basis

484059

Sigma-Aldrich

Silver, nanopowder, <150 nm particle size, 99% trace metals basis

85131

Sigma-Aldrich

Silver, colloidal, 65-75% Ag basis

348783

Sigma-Aldrich

Silver, wire, diam. 0.1 mm, 99.9% trace metals basis

369438

Sigma-Aldrich

Silver, foil, thickness 1.0 mm, 99.99% trace metals basis

735825

Sigma-Aldrich

Silver, conductive paste

GF59008697

Silver, foil, not light tested, 150x150mm, thickness 0.02mm, 99.97%

GF27170917

Silver, foil, light tested, 25x25mm, thickness 0.05mm, as rolled, 99.95+%

GF58085646

Silver, insulated wire, 50m, conductor diameter 0.025mm, insulation thickness 0.005mm, polyurethane insulation, 99.99%

GF57333573

Silver, rod, 100mm, diameter 8.0mm, as drawn, 99.95+%

GF54157350

Silver, foil, not light tested, 100x100mm, thickness 0.008mm, 99.95+%

GF18987429

Silver, tube, 100mm, outside diameter 1.1mm, inside diameter 0.75mm, wall thickness 0.175mm, as drawn, 99.95+%

GF59305237

Silver, insulated wire, 2m, conductor diameter 0.075mm, insulation thickness 0.010mm, nylon insulation, 99.99%

GF28356116

Silver, rod, 500mm, diameter 3.5mm, as drawn, 99.95+%

GF00234111

Silver, foil, not light tested, 250x300mm, thickness 0.025mm, annealed, 99.95+%

GF08788988

Silver, rod, 1000mm, diameter 5.0mm, as drawn, 99.95+%

GF16364459

Silver, foil, light tested, 300x300mm, thickness 0.025mm, as rolled, 99.95+%

GF26020493

Silver, insulated wire, 5m, conductor diameter 0.25mm, insulation thickness 0.024mm, PTFE (polytetrafluoroethylene) insulation, 99.99%

GF24216049

Silver, foil, not light tested, 100x100mm, thickness 0.01mm, 99.95+%

GF49714342

Silver, microfoil, disks, 25mm, thinness 0.5μm, specific density 522.6μg/cm², permanent mylar 3.5μm support, 99.95+%

GF04115001

Silver, insulated wire, 2m, conductor diameter 0.075mm, insulation thickness 0.010mm, PTFE (polytetrafluoroethylene) insulation, 99.99%

GF13324531

Silver, tube, 100mm, outside diameter 5.0mm, inside diameter 4.5mm, wall thickness 0.25mm, as drawn, 99.95+%