TY - JOUR
T1 - Spectral distortions in zinc-based metal-enhanced fluorescence underpinned by fast and slow electronic transitions
AU - Knoblauch, Rachael
AU - Ben Hamo, Hilla
AU - Marks, Robert
AU - Geddes, Chris D.
N1 - Funding Information:
This work was supported by the National Science Foundation (NSF), USA, Graduate Research Fellowship Program ( 2018262827 ), the HHS/ National Institutes of Health (NIH)/ National Institute of General Medical Sciences (NIGMS), USA, through the Chemistry/Biology Interface Program at the University of Maryland Baltimore County ( 5T32GM066706 ), and the Institute of Fluorescence at the University of Maryland Baltimore County, USA, Internal Funding .
Funding Information:
This work was supported by the National Science Foundation (NSF), USA, Graduate Research Fellowship Program (2018262827), the HHS/National Institutes of Health (NIH)/National Institute of General Medical Sciences (NIGMS), USA, through the Chemistry/Biology Interface Program at the University of Maryland Baltimore County (5T32GM066706), and the Institute of Fluorescence at the University of Maryland Baltimore County, USA, Internal Funding.
Publisher Copyright:
© 2020 Elsevier B.V.
PY - 2020/4/1
Y1 - 2020/4/1
N2 - Metal-enhanced fluorescence (MEF) is a promising technology with impact in diagnostics, electronics, and sensing. Despite investigation into MEF fundamentals, some properties remain unresearched, notably spectral distortion. To date, publications have described its underpinnings, yet comprehensive analysis is needed, as presented recently for silver films. Herein we expand this description using zinc substrates (ZnNPs). Significant red-edge and blue-edge distortions are reported using Rose Bengal. Radiative decay rate modification is identified as key in amplifying fast/slow electronic transitions by the enhanced emission mechanism. Furthermore, we identify distortion in published studies, bolstering our thinking that spectral distortion is an intrinsic property of MEF.
AB - Metal-enhanced fluorescence (MEF) is a promising technology with impact in diagnostics, electronics, and sensing. Despite investigation into MEF fundamentals, some properties remain unresearched, notably spectral distortion. To date, publications have described its underpinnings, yet comprehensive analysis is needed, as presented recently for silver films. Herein we expand this description using zinc substrates (ZnNPs). Significant red-edge and blue-edge distortions are reported using Rose Bengal. Radiative decay rate modification is identified as key in amplifying fast/slow electronic transitions by the enhanced emission mechanism. Furthermore, we identify distortion in published studies, bolstering our thinking that spectral distortion is an intrinsic property of MEF.
KW - Metal-enhanced fluorescence
KW - Plasmonic amplification
KW - Radiative decay rate
KW - Rose Bengal
KW - Spectral distortion
KW - Spectral profile modification
KW - Zinc nanomaterials
UR - http://www.scopus.com/inward/record.url?scp=85079513063&partnerID=8YFLogxK
U2 - 10.1016/j.cplett.2020.137212
DO - 10.1016/j.cplett.2020.137212
M3 - Article
C2 - 32194291
AN - SCOPUS:85079513063
SN - 0009-2614
VL - 744
JO - Chemical Physics Letters
JF - Chemical Physics Letters
M1 - 137212
ER -