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

85131

Sigma-Aldrich

Silver, colloidal, 65-75% Ag basis

348783

Sigma-Aldrich

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

484059

Sigma-Aldrich

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

327050

Sigma-Aldrich

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

265608

Sigma-Aldrich

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

265586

Sigma-Aldrich

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

265594

Sigma-Aldrich

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

326976

Sigma-Aldrich

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

265500

Sigma-Aldrich

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

295744

Sigma-Aldrich

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

265551

Sigma-Aldrich

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

265527

Sigma-Aldrich

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

369438

Sigma-Aldrich

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

778095

Sigma-Aldrich

Silver nanowires, diam. × L 200 nm × 10 μm, 0.5% (isopropyl alcohol suspension)

735825

Sigma-Aldrich

Silver, conductive paste

GF04115001

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

GF60364199

Silver, insulated wire, 1m, conductor diameter 0.075mm, insulation thickness 0.010mm, nylon insulation, 99.99%

GF88949693

Silver, insulated wire, 50m, conductor diameter 0.25mm, insulation thickness 0.024mm, PTFE (polytetrafluoroethylene) insulation, 99.99%

GF68441845

Silver, sphere, 100pcs, diameter 0.5mm, precision sphere grade

GF81632886

Silver, rod, 25mm, diameter 10.0mm, as drawn, 99.95+%

GF13442228

Silver, insulated wire, 50m, conductor diameter 0.25mm, insulation thickness 0.015mm, epoxy insulation, 99.99%

GF93496102

Silver, rod, 100mm, diameter 1.5mm, as drawn, 99.95+%

GF09632921

Silver, insulated wire, 1m, conductor diameter 0.075mm, insulation thickness 0.010mm, PTFE (polytetrafluoroethylene) insulation, 99.99%

GF38961973

Silver, insulated wire, 5m, conductor diameter 0.25mm, insulation thickness 0.015mm, epoxy insulation, 99.99%

GF54617889

Silver, sphere, 200pcs, diameter 0.5mm, precision sphere grade

GF01068847

Silver, rod, 100mm, diameter 10.0mm, as drawn, 99.95+%

GF40726975

Silver, tube, 200mm, outside diameter 10mm, inside diameter 8mm, wall thickness 1.0mm, as drawn, 99.95+%

GF75581310

Silver, tube, 1000mm, outside diameter 4.65mm, inside diameter 4.23mm, wall thickness 0.21mm, as drawn, 99.95+%

GF24506210

Silver, rod, 500mm, diameter 6.0mm, as drawn, 99.95+%

GF18506594

Silver, tube, 1000mm, outside diameter 3.5mm, inside diameter 3.04mm, wall thickness 0.23mm, as drawn, 99.95+%