Enhanced optical properties of sol–gel derived TiO2 films using microwave irradiation

Claudio, D. Di; Phani, A.R.; Santucci, S.

doi:10.1016/j.optmat.2006.10.032

Cited by 38 publications

(11 citation statements)

References 23 publications

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“…Hence, in the present investigation, organic-inorganic hybrid nanocomposite coatings were prepared using an acrylic based organically modified silane namely methacryloxypropyltrimethoxysilane (M) along with titanium tetraisopropoxide (T), hereinafter abbreviated as MT. The purpose of using TiO 2 in the multi-metal oxide sol-gel network is that TiO 2 is a good absorber of microwaves [13] and hence, there is no requirement to separately add a microwave absorber in the coatings. In addition, TiO 2 is also a good absorber of UV radiation.…”

Section: Introductionmentioning

confidence: 99%

A comparative study of different curing techniques for SiO2–TiO2 hybrid coatings on polycarbonate

Sowntharya

Subasri

2013

Ceramics International

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Section: Introductionmentioning

confidence: 99%

A comparative study of different curing techniques for SiO2–TiO2 hybrid coatings on polycarbonate

Sowntharya

Subasri

2013

Ceramics International

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“…8 TiO 2 films became anatase in structure when subjected to heat treatment at 600°C, and the grain sizes were found to be smaller than those found for microwaveexposed films, resulting in the blue shift in UV-visible absorption spectra. 9 However, the sol-gel synthesis of TiO 2 nanoparticles was performed with room temperature ionic liquid 1-n-butyl-3-methylimidazolium hexafluorophosphate as a reaction medium, and the anatase phase was achieved without heat treatment. 10 The photocatalytic efficiency increases with the increasing concentration of nanostructure TiO 2 , and the degradation percent can reach 100% at the optimal catalyst concentration.…”

Section: Introductionmentioning

confidence: 99%

Dielectric Measurements on Sol–Gel Derived Titania Films

Çapan

Ray

2017

Journal of Elec Materi

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Alternating current (AC) impedance measurements were performed on 37 nm thick nanostructured sol-gel derived anatase titania films on ultrasonically cleaned (100) p-silicon substrates at temperatures T ranging from 100 K to 300 K over a frequency range between 20 Hz and 1 MHz. The frequency-dependent behavior of the AC conductivity r ac (f, T) obeys the universal power law, and the values of the effective hopping barrier and hopping distance were found to be 0.79 eV and 6.7 9 10 À11 m from an analysis due to the correlated barrier-hopping model. The dielectric relaxation was identified as a thermally activated non-Debye process involving an activation energy of 41.5 meV.

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“…[1][2][3]. It also shows great potential in preparation of ceramic coating due to its flexibility in composition, morphology and low temperature for densification.…”

Section: Introductionmentioning

confidence: 99%

Al2O3/YSZ Composite Coatings Prepared by a Novel Sol–Gel Process and Their High-Temperature Oxidation Resistance

Ren

Wang

2010

Oxid Met

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In this study, a novel sol-gel process has been utilized to fabricate Al 2 O 3 /YSZ (6 wt% yttria partially stabilized zirconia) composite coatings on Ni-based superalloy. The green coatings were obtained by electrophoretic deposition (EPD) in a suspension containing aluminium oxide sol, nano-Al 2 O 3 and micro-YSZ particles, and then treated by so-called pressure filtration microwave sintering (PFMS) process. The as-sintered composite coatings were dense, uniform and crack-free and the phases mainly present a-Al 2 O 3 , m-ZrO 2 and t-ZrO 2 as aluminium oxide sol content decreasing. The cyclic oxidation tests at 1000°C for 200 h demonstrate that both of high-temperature oxidation and spallation resistance for the coated samples were remarkably improved. These beneficial effects could be attributed to the special microstructure that micro-YSZ particles embedded in nano/ submicron Al 2 O 3 matrix. Meanwhile, the mechanisms of the inhibition of the oxygen diffusion and thermal match are further discussed.

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Enhanced optical properties of sol–gel derived TiO2 films using microwave irradiation

Cited by 38 publications

References 23 publications

A comparative study of different curing techniques for SiO2–TiO2 hybrid coatings on polycarbonate

A comparative study of different curing techniques for SiO2–TiO2 hybrid coatings on polycarbonate

Dielectric Measurements on Sol–Gel Derived Titania Films

Al2O3/YSZ Composite Coatings Prepared by a Novel Sol–Gel Process and Their High-Temperature Oxidation Resistance

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