scholarly journals Thermal deformation of gold nanostructures and its influence on surface plasmon resonance sensing

2020 ◽  
Vol 2 (3) ◽  
pp. 1128-1137
Author(s):  
Hyun-Tae Kim ◽  
Mayank Pathak ◽  
Keshav Rajasekaran ◽  
Ashwani K. Gupta ◽  
Miao Yu
Keyword(s):  
Surface Plasmon Resonance ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Thermal Deformation ◽  
Thermal Loading ◽  
Gold Nanostructures ◽  
Cyclic Thermal Loading

The deformation of lithographic planar gold nanostructures under cyclic thermal loading and its influence on surface plasmon resonance sensing are investigated.

scholarly journals Developing a Transducer Based on Localized Surface Plasmon Resonance (LSPR) of Gold Nanostructures for Nanobiosensor Applications

2013 ◽  
Vol 543 ◽  
pp. 393-401
Author(s):  
Adil B. Turhan ◽  
Demet Ataman ◽  
Semih Cakmakyapan ◽  
Mehmet Mutlu ◽  
Ekmel Ozbay
Keyword(s):  
Surface Plasmon Resonance ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Localized Surface Plasmon Resonance ◽  
Optical Characterization ◽  
Gold Nanostructures ◽  
Localized Surface Plasmon ◽  
Electromagnetic Modeling ◽  
Good Correspondence ◽  
Nanostructure Arrays

In this work, we report the nanofabrication, optical characterization, and electromagnetic modeling of various nanostructure arrays for localized surface plasmon resonance (LSPR) based biosensing studies. Comparison of the experimental results and simulation outputs of various nanostructure arrays was made and a good correspondence was achieved.

Development of New Localized Surface Plasmon Resonance Interfaces Based on Gold Nanostructures Sandwiched between Tin-Doped Indium Oxide Films

Langmuir ◽  
2010 ◽  
Vol 26 (6) ◽  
pp. 4266-4273 ◽  
Author(s):  
Joanna Niedziółka-Jönsson ◽  
Fatiha Barka ◽  
Xavier Castel ◽  
Marcin Pisarek ◽  
Nacer Bezzi ◽  
...  
Keyword(s):  
Surface Plasmon Resonance ◽  
Indium Oxide ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Localized Surface Plasmon Resonance ◽  
Oxide Films ◽  
Gold Nanostructures ◽  
Localized Surface Plasmon ◽  
Indium Oxide Films

Visible surface diffusion of gold nanostructures on a paper at room temperature through localized surface plasmon resonance

MRS Advances ◽  
2019 ◽  
Vol 4 (5-6) ◽  
pp. 325-330
Author(s):  
Nobuko Fukuda ◽  
Sakae Manaka
Keyword(s):  
Surface Plasmon Resonance ◽  
Surface Diffusion ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Localized Surface Plasmon Resonance ◽  
Room Temperature ◽  
Gold Nanostructures ◽  
Localized Surface Plasmon ◽  
Particle Sizes ◽  
Color Changes

ABSTRACTWe visually observed color changes of discontinuous gold surfaces on paper substrates through localized surface plasmon resonance (LSPR) at room temperature due to surface diffusion of gold nanostructures. Isolated nanoparticles and an uncompleted nanosheet of gold were obtained by thermal vapor deposition. After preservation for 8 months in air at room temperature, the particle sizes and shapes remarkably changed with color changes. The surface diffusion of the discontinuous gold on the paper would be derived from solid-state dieting, resulting in the growth of the nanosheet defect and coalescence of the nanoparticles. This is due to the total energy minimization of the surfaces of gold nanostructures and the paper and the interface between gold and the paper.

Multipole Surface Plasmon Resonance in Electrodeposited Gold Nanoparticles

2014 ◽  
Vol 13 (02) ◽  
pp. 1450014 ◽  
Author(s):  
Mohanrao V. Mandke ◽  
Habib M. Pathan
Keyword(s):  
Contact Angle ◽  
Gold Nanoparticles ◽  
Surface Plasmon Resonance ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Resonance Mode ◽  
Gold Nanostructures ◽  
Broad Absorption Band ◽  
Wide Range ◽  
Plasmon Resonance Mode

Electrodeposition is a convenient, economical and template-free tool to create the gold nanostructures. A two-electrode electrochemical process is used for the deposition process. In this method by controlling the deposition time and electrode potential, nearly spherical and rod-like gold nanostructures were synthesized through the reduction of Chlorauric acid with citric acid as a complexing agent. Spherical gold nanostructures of different size around 2 nm to 30 nm and rod-like nanostructures with an aspect ratio 0.5 were grown directly on fluorine-doped tin oxide (FTO)-coated glass substrate. The growth mechanism of gold nanostructures is explained with the help of oriented attachment process. The contact angle measurement showed the hydrophilic nature of gold nanostructures using water with contact angle of about 56°. The optical properties showed a dipole, quadrupole and an octupole plasmon resonance mode at around 625 nm, 530 nm and 422 nm respectively. The dipole resonance peak extends further to give a broad absorption band in the near infrared region of electromagnetic waves. The refractive index sensitivity of gold nanoparticles in various solvents was investigated by calculating the red shift of surface plasmon resonance (SPR) peaks. The quadrupole plasmon resonance mode showed maximum SPR sensitivity as compared to dipole and octupole plasmon resonance mode. The controlled formation of gold nanoparticles with variation of SPR over wide range of visible region supports the potential applications in biosensors, nanoelectronics and plasmon enhanced light absorption in photovoltaics, etc.

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