Metal-enhanced fluorescence from copper substrates

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173116_1_online.pdf (1.08 MB)

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https://pubs.aip.org/aip/apl/article/90/17/173116/144580/Metal-enhanced-fluorescence-from-copper-substrates

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https://doi.org/10.1063/1.2732185
 http://hdl.handle.net/11603/36570

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UMBC Chemistry & Biochemistry Department
UMBC Institute of Fluorescence (IoF)

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https://orcid.org/0000-0002-9110-6374

Date

2007-04-25

Type of Work

journal articles
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Citation of Original Publication

Zhang, Yongxia, Kadir Aslan, Michael J. R. Previte, and Chris D. Geddes. “Metal-Enhanced Fluorescence from Copper Substrates.” Applied Physics Letters 90, no. 17 (April 25, 2007): 173116. https://doi.org/10.1063/1.2732185.

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This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in Zhang, Yongxia, Kadir Aslan, Michael J. R. Previte, and Chris D. Geddes. “Metal-Enhanced Fluorescence from Copper Substrates.” Applied Physics Letters 90, no. 17 (April 25, 2007): 173116. https://doi.org/10.1063/1.2732185 and may be found at https://pubs.aip.org/aip/apl/article/90/17/173116/144580/Metal-enhanced-fluorescence-from-copper-substrates.

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Abstract

In this letter, the authors report the observation of metal-enhanced fluorescence emission from fluorophores deposited on copper (Cu) substrates. Different thicknesses of Cu particulate films (from 1 to 5nm) were deposited onto glass slides using thermal vapor deposition. Fluorophores positioned in close proximity to the Cu films show fluorescence enhancement as a function of the Cu thickness increases, reaching a maximum (2.5-fold) at ≈3nm. The findings strongly suggest that surface plasmons from Cu can radiate and therefore enhance a fluorophore’s spectral properties, similar to observations reported for both silver and gold nanoparticle deposited substrates.