Surface plasmon enhanced photoluminescence and Raman scattering of ultra thin ZnO-Au hybrid nanoparticles

2013 ◽  
Vol 113 (3) ◽  
pp. 033512 ◽  
Author(s):  
K. Saravanan ◽  
B. K. Panigrahi ◽  
R. Krishnan ◽  
K. G. M. Nair
Keyword(s):  
Raman Scattering ◽  
Surface Plasmon ◽  
Hybrid Nanoparticles ◽  
Enhanced Photoluminescence

scholarly journals In Situ Enhanced Raman and Photoluminescence of Bio-Hybrid Ag/Polymer Nanoparticles by Localized Surface Plasmon for Highly Sensitive DNA Sensors

Polymers ◽  
2020 ◽  
Vol 12 (3) ◽  
pp. 631 ◽  
Author(s):  
Seokho Kim ◽  
Bo-Hyun Kim ◽  
Young Ki Hong ◽  
Chunzhi Cui ◽  
Jinho Choi ◽  
...  
Keyword(s):  
Surface Plasmon ◽  
Self Assembly ◽  
Hybrid Nanoparticles ◽  
Localized Surface Plasmon ◽  
Raman Signal ◽  
Core Shell ◽  
Shell Nanoparticles ◽  
Enhanced Photoluminescence ◽  
Target Dna ◽  
Core Shell Nanoparticles

We experimentally demonstrate the simultaneous enhancement of Raman and photoluminescence (PL) of core-shell hybrid nanoparticles consisting of Ag (core) and polydiacetylene (PDA, shell) through the assistance of localized surface plasmon (LSP) effect for the effective biosensor. Core-shell nanoparticles (NPs) are fabricated in deionized water through a sequential process of reprecipitation and self-assembly. The Raman signal of PDA on core-shell NPs is enhanced more than 100 times. Also, highly enhanced photoluminescence is observed on Ag/PDA hybrid NPs after coupling of the complementary t-DNA with p-DNA which are immobilized on PDA shell. This indicates that the core Ag affects the Raman and PL of PDA through the LSP resonance, which can be caused by the energy and/or charge transfer caused by the LSP coupling and the strong electromagnetic field near Ag NP surface. Only electrons present on the surface interact with the PDA shell, not involving the electrically neutral part of the electrons inside the Ag NP. Furthermore, this work shows that as prepared Ag/PDA NPs functionalized by probe DNA can sense the target DNA with an attomolar concentration (100 attomole).

scholarly journals Surface plasmon enhanced photoluminescence of ZnO nanorods by capping reduced graphene oxide sheets

2014 ◽  
Vol 22 (10) ◽  
pp. 11436 ◽  
Author(s):  
Feng Han ◽  
Shuming Yang ◽  
Weixuan Jing ◽  
Kyle Jiang ◽  
Zhuangde Jiang ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Surface Plasmon ◽  
Zno Nanorods ◽  
Enhanced Photoluminescence ◽  
Reduced Graphene ◽  
Graphene Oxide Sheets

Spectral characteristics of surface-plasmon–enhanced photoluminescence in nanocrystalline SiC films

2010 ◽  
Vol 89 (4) ◽  
pp. 47006 ◽  
Author(s):  
Wei Yu ◽  
Xinzhan Wang ◽  
Wanbing Lu ◽  
Shufang Wang ◽  
Guangsheng Fu
Keyword(s):  
Surface Plasmon ◽  
Spectral Characteristics ◽  
Enhanced Photoluminescence ◽  
Sic Films

scholarly journals Synergetic photoluminescence enhancement of monolayer MoS2via surface plasmon resonance and defect repair

RSC Advances ◽  
2018 ◽  
Vol 8 (42) ◽  
pp. 23591-23598 ◽  
Author(s):  
Yi Zeng ◽  
Weibing Chen ◽  
Bin Tang ◽  
Jianhui Liao ◽  
Jun Lou ◽  
...  
Keyword(s):  
Electromagnetic Field ◽  
Surface Plasmon Resonance ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Enhanced Photoluminescence ◽  
Defect Repair ◽  
Photoluminescence Enhancement

A synergistic strategy is reported to obtain a highly enhanced photoluminescence (PL) of monolayer MoS2 by simultaneously improving the intensity of the electromagnetic field around MoS2 and the QY of MoS2.

scholarly journals Multiple surface plasmon resonances enhanced nonlinear optical microscopy

Nanophotonics ◽  
2019 ◽  
Vol 8 (3) ◽  
pp. 487-493 ◽  
Author(s):  
Xiaohu Mi ◽  
Yuyang Wang ◽  
Rui Li ◽  
Mengtao Sun ◽  
Zhenglong Zhang ◽  
...  
Keyword(s):  
Raman Scattering ◽  
Optical Microscopy ◽  
Surface Plasmon ◽  
Nonlinear Optical ◽  
Surface Plasmon Resonances ◽  
Nonlinear Optical Microscopy ◽  
Two Photon ◽  
Plasmon Resonances ◽  
Anti Stokes ◽  
Multiple Surface Plasmon Resonances

AbstractThe nonlinear optical microscopies of coherent two-photon excited fluorescence and anti-Stokes Raman scattering are strongly enhanced by multiple surface plasmon resonances (MSPRs). The Au@Ag nanorods presented strong MSPRs peaks at 800 and 400 nm, and can enhance nonlinear optical microscopy at fundamental and double frequencies, respectively. A two-dimensional (2D) material of g-C3N4 is employed to study the plasmon-enhanced nonlinear optical microscopy by the femtosecond laser. The electric analysis reveals that the MSPRs of the Au@Ag nanorod can significantly enhance the signals of two-photon excited fluorescence and anti-Stokes Raman scattering by up to the orders of 104 and 1016, respectively. The results demonstrate the great advantages of plasmon-enhanced nonlinear optical microscopy for the optical analysis on 2D materials, thus providing a new adventure for increasing the optical resolutions of nonlinear optical microscopy.

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