Metal-enhanced excimer (P-type) fluorescence

Thumbnail Image

Files

nihms54532.pdf (918.83 KB)

Links to Files

https://www.sciencedirect.com/science/article/pii/S0009261408005800

Permanent Link

https://doi.org/10.1016/j.cplett.2008.04.083
 http://hdl.handle.net/11603/36560

Collections

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

Author/Creator

Author/Creator ORCID

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

Date

2008-04-23

Type of Work

journal articles
postprints
Text

Department

Program

Citation of Original Publication

Zhang, Yongxia, Kadir Aslan, Michael J. R. Previte, and Chris D. Geddes. “Metal-Enhanced Excimer (P-Type) Fluorescence.” Chemical Physics Letters 458, no. 1 (June 6, 2008): 147–51. https://doi.org/10.1016/j.cplett.2008.04.083.

Rights

Attribution-NonCommercial-NoDerivatives 4.0 International

Subjects

Abstract

In this Letter, we report the first observation of metal-enhanced excimer (P-type) fluorescence from pyrene. Pyrene in close proximity to silver island films (SIFs) shows enhanced pyrene excimer emission with a ≈2.5-fold higher emission intensity observed from SIFs and 5×10⁻³M pyrene, as compared to a quartz control sample containing no silver nanoparticles. Our findings suggest two complementary methods for the enhancement: (i) surface plasmons can radiate coupled monomer and excimer fluorescence efficiently, and (ii) enhanced absorption (enhanced electric field) further facilitates enhanced emission. This observation is helpful in our laboratory’s continued goal to develop a unified plasmon–luminophore description.