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

303372

Sigma-Aldrich

Silver, granular, >250 μm, 99.99% trace metals basis

327077

Sigma-Aldrich

Silver, flakes, 10 μm, ≥99.9% trace metals basis

327085

Sigma-Aldrich

Silver, powder, 2-3.5 μm, ≥99.9% trace metals basis

327107

Sigma-Aldrich

Silver, powder, <45 μm, ≥99.99% trace metals basis

576832

Sigma-Aldrich

Silver, nanopowder, <100 nm particle size, contains PVP as dispersant, 99.5% trace metals basis

348759

Sigma-Aldrich

Silver, wire, diam. 1.5 mm, ≥99.99% trace metals basis

326984

Sigma-Aldrich

Silver, foil, thickness 0.25 mm, 99.9% trace metals basis

327018

Sigma-Aldrich

Silver, wire, diam. 2.0 mm, 99.9% trace metals basis

265578

Sigma-Aldrich

Silver, wire, diam. 0.25 mm, 99.9% trace metals basis

265519

Sigma-Aldrich

Silver, foil, thickness 0.025 mm, 99.9% trace metals basis

327093

Sigma-Aldrich

Silver, powder, 5-8 μm, ≥99.9% trace metals basis

327026

Sigma-Aldrich

Silver, wire, diam. 0.5 mm, 99.9% trace metals basis

327034

Sigma-Aldrich

Silver, wire, diam. 0.25 mm, ≥99.99% trace metals basis

267430

Sigma-Aldrich

Silver, wire, diam. 2.0 mm, ≥99.99% trace metals basis

373249

Sigma-Aldrich

Silver, evaporation slug, diam. × L 0.6 cm × 1.2 cm, 99.99% trace metals basis

GF80217109

Silver, foil, not light tested, 25x25mm, thickness 0.001mm, 99.97%

GF53776659

Silver, rod, 50mm, diameter 12.7mm, as drawn, 99.95+%

GF27542538

Silver, tube, 200mm, outside diameter 0.7mm, inside diameter 0.3mm, wall thickness 0.2mm, as drawn, 99.95+%

GF47247420

Silver, tube, 500mm, outside diameter 1.75mm, inside diameter 1.55mm, wall thickness 0.1mm, as drawn, 99.95+%

GF92615340

Silver, wire reel, 10m, diameter 0.25mm, as drawn, 99.997%

GF04714501

Silver, foil, 100x100mm, thickness 0.125mm, as rolled, 99.95+%

GF65192463

Silver, wire reel, 20m, diameter 0.5mm, annealed, 99.99%

GF01723306

Silver, wire reel, 5m, diameter 0.5mm, annealed, 99.99%

GF51166199

Silver, tube, 200mm, outside diameter 7.0mm, inside diameter 6mm, wall thickness 0.5mm, as drawn, 99.95+%

GF22075657

Silver, wire reel, 1m, diameter 0.25mm, as drawn, 99.997%

GF99092256

Silver, tube, 500mm, outside diameter 7.0mm, inside diameter 6mm, wall thickness 0.5mm, as drawn, 99.95+%

GF19827816

Silver, wire reel, 2m, diameter 0.050mm, gold plated, 99.99%

GF94510874

Silver, wire reel, 5m, diameter 1.0mm, annealed, 99.99%

GF13859725

Silver, wire reel, 10m, diameter 1.0mm, annealed, 99.99%

GF00494276

Silver, wire reel, 10m, diameter 0.8mm, as drawn, 99.99%