We report giant fluorescence enhancement in SiC nanocrystals (NCs) embedded in a sodium dodecyl sulfonate dielectric medium by proximately contacted Ag nanoparticles. The enhancement in integrated fluorescence intensity reaches an astonishing 176-fold under 360 nm excitation (53.3-fold enhancement in emission maximum intensity). Finite-element simulation indicates that the strong resonant coupling between the excited SiC NCs and localized surface plasmons of the Ag nanoparticles plays a dominant role in determining fluorescence enhancement. In contrast, the absorption enhancement caused by light concentration around the Ag nanoparticles makes only a slight contribution to the overall enhancement. Our result opens the possibility of applications of these highly enhanced fluorescent SiC NCs in diverse areas such as sensing, optoelectronics and life sciences.
机构:
Hungarian Acad Sci, Res Inst Solid State Phys & Opt, H-1525 Budapest, HungaryHungarian Acad Sci, Res Inst Solid State Phys & Opt, H-1525 Budapest, Hungary
Beke, David
;
Szekrenyes, Zsolt
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Hungarian Acad Sci, Res Inst Solid State Phys & Opt, H-1525 Budapest, HungaryHungarian Acad Sci, Res Inst Solid State Phys & Opt, H-1525 Budapest, Hungary
Szekrenyes, Zsolt
;
Balogh, Istvan
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Hungarian Acad Sci, Res Inst Solid State Phys & Opt, H-1525 Budapest, HungaryHungarian Acad Sci, Res Inst Solid State Phys & Opt, H-1525 Budapest, Hungary
Balogh, Istvan
;
Veres, Miklos
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Hungarian Acad Sci, Res Inst Solid State Phys & Opt, H-1525 Budapest, HungaryHungarian Acad Sci, Res Inst Solid State Phys & Opt, H-1525 Budapest, Hungary
Veres, Miklos
;
Fazakas, Eva
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Hungarian Acad Sci, Res Inst Solid State Phys & Opt, H-1525 Budapest, HungaryHungarian Acad Sci, Res Inst Solid State Phys & Opt, H-1525 Budapest, Hungary
Fazakas, Eva
;
Varga, Lajos K.
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Hungarian Acad Sci, Res Inst Solid State Phys & Opt, H-1525 Budapest, HungaryHungarian Acad Sci, Res Inst Solid State Phys & Opt, H-1525 Budapest, Hungary
Varga, Lajos K.
;
Kamaras, Katalin
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Hungarian Acad Sci, Res Inst Solid State Phys & Opt, H-1525 Budapest, HungaryHungarian Acad Sci, Res Inst Solid State Phys & Opt, H-1525 Budapest, Hungary
Kamaras, Katalin
;
Czigany, Zsolt
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Hungarian Acad Sci, Res Inst Tech Phys & Mat Sci, H-1525 Budapest, HungaryHungarian Acad Sci, Res Inst Solid State Phys & Opt, H-1525 Budapest, Hungary
Czigany, Zsolt
;
Gali, Adam
论文数: 0引用数: 0
h-index: 0
机构:
Hungarian Acad Sci, Res Inst Solid State Phys & Opt, H-1525 Budapest, Hungary
Budapest Univ Technol & Econ, Dept Atom Phys, H-1111 Budapest, HungaryHungarian Acad Sci, Res Inst Solid State Phys & Opt, H-1525 Budapest, Hungary
机构:
SE Univ, Dept Phys, Nanjing 2111189, Peoples R China
City Univ Hong Kong, Dept Phys & Mat Sci, Kowloon, Hong Kong, Peoples R ChinaSE Univ, Dept Phys, Nanjing 2111189, Peoples R China
Fan, Jiyang
;
Li, Hongxia
论文数: 0引用数: 0
h-index: 0
机构:
Nanjing Univ Sci & Technol, Dept Appl Phys, Nanjing 210094, Peoples R ChinaSE Univ, Dept Phys, Nanjing 2111189, Peoples R China
Li, Hongxia
;
Iiang, Jiang
论文数: 0引用数: 0
h-index: 0
机构:
City Univ Hong Kong, Dept Phys & Mat Sci, Kowloon, Hong Kong, Peoples R ChinaSE Univ, Dept Phys, Nanjing 2111189, Peoples R China
Iiang, Jiang
;
So, Leo K. Y.
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h-index: 0
机构:
City Univ Hong Kong, Dept Biol & Chem, Kowloon, Hong Kong, Peoples R ChinaSE Univ, Dept Phys, Nanjing 2111189, Peoples R China
So, Leo K. Y.
;
Lam, Yun Wah
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h-index: 0
机构:
City Univ Hong Kong, Dept Biol & Chem, Kowloon, Hong Kong, Peoples R ChinaSE Univ, Dept Phys, Nanjing 2111189, Peoples R China
Lam, Yun Wah
;
Chu, Paul K.
论文数: 0引用数: 0
h-index: 0
机构:
City Univ Hong Kong, Dept Phys & Mat Sci, Kowloon, Hong Kong, Peoples R ChinaSE Univ, Dept Phys, Nanjing 2111189, Peoples R China
机构:
Hungarian Acad Sci, Res Inst Solid State Phys & Opt, H-1525 Budapest, HungaryHungarian Acad Sci, Res Inst Solid State Phys & Opt, H-1525 Budapest, Hungary
Beke, David
;
Szekrenyes, Zsolt
论文数: 0引用数: 0
h-index: 0
机构:
Hungarian Acad Sci, Res Inst Solid State Phys & Opt, H-1525 Budapest, HungaryHungarian Acad Sci, Res Inst Solid State Phys & Opt, H-1525 Budapest, Hungary
Szekrenyes, Zsolt
;
Balogh, Istvan
论文数: 0引用数: 0
h-index: 0
机构:
Hungarian Acad Sci, Res Inst Solid State Phys & Opt, H-1525 Budapest, HungaryHungarian Acad Sci, Res Inst Solid State Phys & Opt, H-1525 Budapest, Hungary
Balogh, Istvan
;
Veres, Miklos
论文数: 0引用数: 0
h-index: 0
机构:
Hungarian Acad Sci, Res Inst Solid State Phys & Opt, H-1525 Budapest, HungaryHungarian Acad Sci, Res Inst Solid State Phys & Opt, H-1525 Budapest, Hungary
Veres, Miklos
;
Fazakas, Eva
论文数: 0引用数: 0
h-index: 0
机构:
Hungarian Acad Sci, Res Inst Solid State Phys & Opt, H-1525 Budapest, HungaryHungarian Acad Sci, Res Inst Solid State Phys & Opt, H-1525 Budapest, Hungary
Fazakas, Eva
;
Varga, Lajos K.
论文数: 0引用数: 0
h-index: 0
机构:
Hungarian Acad Sci, Res Inst Solid State Phys & Opt, H-1525 Budapest, HungaryHungarian Acad Sci, Res Inst Solid State Phys & Opt, H-1525 Budapest, Hungary
Varga, Lajos K.
;
Kamaras, Katalin
论文数: 0引用数: 0
h-index: 0
机构:
Hungarian Acad Sci, Res Inst Solid State Phys & Opt, H-1525 Budapest, HungaryHungarian Acad Sci, Res Inst Solid State Phys & Opt, H-1525 Budapest, Hungary
Kamaras, Katalin
;
Czigany, Zsolt
论文数: 0引用数: 0
h-index: 0
机构:
Hungarian Acad Sci, Res Inst Tech Phys & Mat Sci, H-1525 Budapest, HungaryHungarian Acad Sci, Res Inst Solid State Phys & Opt, H-1525 Budapest, Hungary
Czigany, Zsolt
;
Gali, Adam
论文数: 0引用数: 0
h-index: 0
机构:
Hungarian Acad Sci, Res Inst Solid State Phys & Opt, H-1525 Budapest, Hungary
Budapest Univ Technol & Econ, Dept Atom Phys, H-1111 Budapest, HungaryHungarian Acad Sci, Res Inst Solid State Phys & Opt, H-1525 Budapest, Hungary
机构:
SE Univ, Dept Phys, Nanjing 2111189, Peoples R China
City Univ Hong Kong, Dept Phys & Mat Sci, Kowloon, Hong Kong, Peoples R ChinaSE Univ, Dept Phys, Nanjing 2111189, Peoples R China
Fan, Jiyang
;
Li, Hongxia
论文数: 0引用数: 0
h-index: 0
机构:
Nanjing Univ Sci & Technol, Dept Appl Phys, Nanjing 210094, Peoples R ChinaSE Univ, Dept Phys, Nanjing 2111189, Peoples R China
Li, Hongxia
;
Iiang, Jiang
论文数: 0引用数: 0
h-index: 0
机构:
City Univ Hong Kong, Dept Phys & Mat Sci, Kowloon, Hong Kong, Peoples R ChinaSE Univ, Dept Phys, Nanjing 2111189, Peoples R China
Iiang, Jiang
;
So, Leo K. Y.
论文数: 0引用数: 0
h-index: 0
机构:
City Univ Hong Kong, Dept Biol & Chem, Kowloon, Hong Kong, Peoples R ChinaSE Univ, Dept Phys, Nanjing 2111189, Peoples R China
So, Leo K. Y.
;
Lam, Yun Wah
论文数: 0引用数: 0
h-index: 0
机构:
City Univ Hong Kong, Dept Biol & Chem, Kowloon, Hong Kong, Peoples R ChinaSE Univ, Dept Phys, Nanjing 2111189, Peoples R China
Lam, Yun Wah
;
Chu, Paul K.
论文数: 0引用数: 0
h-index: 0
机构:
City Univ Hong Kong, Dept Phys & Mat Sci, Kowloon, Hong Kong, Peoples R ChinaSE Univ, Dept Phys, Nanjing 2111189, Peoples R China