Optical properties of low temperature prepared granular titanium dioxide on a silver substrate

Seirafianpour, Nader; Bădilescu, Simona; Djaoued, Yahia; Brüning, Ralf; Balaji, S.; Kahrizi, Mojtaba; Truong, Vo‐Van

doi:10.1016/j.tsf.2007.12.145

Cited by 8 publications

(3 citation statements)

References 21 publications

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“…First, TiO 2 nanoparticles were synthesized according to the previously reported sol-gel method [28]. A Ti(OCH 2 CH 2 CH 2 CH 3 ) 4 precursor (7 mL) was dissolved in 40 mL of anhydrous ethanol under vigorous 1 h stirring.…”

Section: Preparation Of Tio 2 -Cntsmentioning

confidence: 99%

Reusable hydrazine amperometric sensor based on Nafion®-coated TiO2–carbon nanotube modified electrode

Kim

Choi

2015

Sensors and Actuators B: Chemical

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Section: Preparation Of Tio 2 -Cntsmentioning

confidence: 99%

Reusable hydrazine amperometric sensor based on Nafion®-coated TiO2–carbon nanotube modified electrode

Kim

Choi

2015

Sensors and Actuators B: Chemical

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“…Optical constants are provided by [24,25]. An absorption structure can be found near the wavelength of 475 nm, a location near the one observed in experimental measurements (at 490 nm) reported elsewhere [26] with tin oxide nanoparticles synthesized by a sol-gel method and deposited on a gold surface by a dip coating process. It can be seen that the overall shape of the calculated curves agrees well with experiments (Fig.…”

Section: Dielectric Nanoparticles On Metallic Surfacesmentioning

confidence: 87%

Optical Absorption in Overcoats of Nanoparticle Arrays on a Metallic Substrate

Truong

Dormale

2010

Plasmonics

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Surface plasma oscillations in metallic particles as well as in thin metallic films have been studied extensively in the past decades. New features regarding surface plasma excitations are, however, constantly discovered, leading, for example, to surface-enhanced Raman scattering studies and enhanced optical transmission though metal films with nanohole arrays. In the present work, the role of a metallic substrate is examined in two cases, one involving an overcoat of dielectric nanoparticles and the other an overcoat of metallic nanoparticles. Theoretical results are obtained by modeling the nanoparticles as forming a two-dimensional, hexagonal lattice of spheres. The scattered electromagnetic field is then calculated using a variant of the Green function method. Comparison with experimental results is made for nanoparticles of tungsten oxide and tin oxide deposited on either gold or silver substrates, giving qualitative agreement on the extra absorption observed when the dielectric nanoparticles are added to the metallic surfaces. Such absorption would be attributed to the mirror image effects between the particles and the substrate. On the other hand, calculations of the optical properties of silver or gold nanoparticle arrays on a gold or a silver substrate demonstrate very interesting features in the spectral region from 400 to 1,000 nm. Interactions between the nanoparticle arrays surface plasmons and their images in the metallic substrate would be responsible for the red shift observed in the absorption resonance. Moreover, effects of particle size and ambient index of refraction are studied, showing a great potential for applications in biosensing with structures consisting of metallic nanoparticle arrays on metallic substrates.

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“…[21] The sol-gel process consists of the hydrolysis of metal alkoxides and subsequent polycondensation to form the metal oxide gel. [22] One means of achieving shape control is by using a static template to enhance the growth rate of one crystallographic phase over another. [23] The organic surfactants may be undesired for many applications, and a relatively high temperature is needed to decompose the material.…”

Section: Synthesis Of Nanomaterialsmentioning

confidence: 99%

Application of Nanometals Fabricated Using Green Synthesis in Cancer Diagnosis and Therapy

Medina-Ramírez¹,

González-Garcı́a²,

Palakurthi³

et al. 2012

Green Chemistry - Environmentally Benign Approaches

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Optical properties of low temperature prepared granular titanium dioxide on a silver substrate

Cited by 8 publications

References 21 publications

Reusable hydrazine amperometric sensor based on Nafion®-coated TiO2–carbon nanotube modified electrode

Reusable hydrazine amperometric sensor based on Nafion®-coated TiO2–carbon nanotube modified electrode

Optical Absorption in Overcoats of Nanoparticle Arrays on a Metallic Substrate

Application of Nanometals Fabricated Using Green Synthesis in Cancer Diagnosis and Therapy

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