Tuning of the stop-band position in the visible range of SiO2/TiO2 Bragg reflectors by doping TiO2 with transition metals

Sedrati, H.; Benachour, Mustapha; Dehdouh, H.; Bensaha, R.

doi:10.1016/j.ijleo.2019.164098

Cited by 3 publications

(2 citation statements)

References 34 publications

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“…Further, the elemental peaks (Ti, Si, O) and reflectance (∼ 100 %) properties were studied using energy-dispersive X-ray spectroscopy (EDX) and UV-Visible spectrophotometer [12]. Sedrati et al (2019) fabricated the TiO 2 /SiO 2 Bragg reflectors using the sol-gel dip-coating process. The Raman spectrum confirmed the anatase phase.…”

Section: Introductionmentioning

confidence: 99%

“…The UV-Vis-IR range shifted towards the more extended wavelength region with the effect of doping transition metals (copper, nickel, cobalt, and chromium). Also, doping TiO 2 showed enlarged stop-band of TiO 2 /SiO 2 Bragg reflectors and enhanced optical properties [13]. Zhao et al (2019) investigated the mesoporous SiO 2 and SiO 2 -TiO 2 thin films prepared by the sol-gel method.…”

Section: Introductionmentioning

confidence: 99%

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Ultraviolet and visible reflective TiO2/SiO2 thin films on silicon using sol-gel spin coater

Saravanan¹,

Dubey²

2021

Nanosystems: Phys. Chem. Math.

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TiO 2 /SiO 2 alternative thin films (stacks) were deposited on silicon substrates using sol-gel spin-coating techniques. The prepared samples had their corresponding optical properties analyzed by UV-Visible spectrophotometry (UV-Vis), X-ray diffractometry (XRD), a surface profilometer, and Raman spectroscopy. The optical and crystallization properties of thin films were varied and compared by changing the number of stacks. UV-Vis spectrum showed high reflectance and shifting towards the infrared region with effect of increased TiO 2 /SiO 2 stacks. XRD spectra confirmed the existence of anatase TiO 2 and SiO 2 diffraction peaks. The multilayer film thickness was calculated at 109 and 151 nm at two and four stacks by a surface profilometer. The Raman spectra confirmed the Si-O-Si and TiO 2 stretching modes at 2600, 980, and 519 cm −1 . This investigation reveals the promising and effective UV-Visible reflective property of alternative TiO 2 /SiO 2 thin films on a silicon substrate.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Ultraviolet and visible reflective TiO2/SiO2 thin films on silicon using sol-gel spin coater

Saravanan¹,

Dubey²

2021

Nanosystems: Phys. Chem. Math.

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Development of hydrophilic multilayer structures for energy saving window applications using sol-gel spin coating

Yepuri,

Ramachandramurthy

2024

Results in Optics

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Controlling the Bandgaps of One-Dimensional TiO2/SiO2, TiO2/SnO2, and SiO2/SnO2 Photonic Crystals Using the Transfer Matrix Method

Alamrani¹,

Alsharaeh²

2022

OPJ

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One-dimensional photonic crystals (1D PhCs) have a unique ability to control the propagation of light waves, however certain classes of 1D oxides remain relatively unexplored for use as PhCs. Specifically, there has not been a comparative study of the three different 1D PhC structures to compare the influence of layer thickness, number, and refractive index on the ability of the PhCs to control light transmission. Herein, we use the transfer matrix method (TMM) to theoretically examine the transmission of 1D PhCs composed of layers of TiO 2 /SiO 2 , TiO 2 /SnO 2 , SiO 2 /SnO 2 , and combinations of the three with various top and bottom layer thicknesses to cover a substantial region of the electromagnetic spectrum (UV to NIR). With increasing layer numbers for TiO 2 /SiO 2 and SiO 2 /SnO 2 , the edges became sharper and wider and the photonic bandgap width increased. Moreover, we demonstrated that PhCs with significantly thick TiO 2 /SiO 2 layers had a high transmittance for a wide bandgap, allowing for wide-band optical filter applications. These different PhC architectures could enable a variety of applications, depending on the properties needed.

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Tuning of the stop-band position in the visible range of SiO2/TiO2 Bragg reflectors by doping TiO2 with transition metals

Cited by 3 publications

References 34 publications

Ultraviolet and visible reflective TiO2/SiO2 thin films on silicon using sol-gel spin coater

Ultraviolet and visible reflective TiO2/SiO2 thin films on silicon using sol-gel spin coater

Development of hydrophilic multilayer structures for energy saving window applications using sol-gel spin coating

Controlling the Bandgaps of One-Dimensional TiO<sub>2</sub>/SiO<sub>2</sub>, TiO<sub>2</sub>/SnO<sub>2</sub>, and SiO<sub>2</sub>/SnO<sub>2</sub> Photonic Crystals Using the Transfer Matrix Method

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Tuning of the stop-band position in the visible range of SiO2/TiO2 Bragg reflectors by doping TiO2 with transition metals

Cited by 3 publications

References 34 publications

Ultraviolet and visible reflective TiO2/SiO2 thin films on silicon using sol-gel spin coater

Ultraviolet and visible reflective TiO2/SiO2 thin films on silicon using sol-gel spin coater

Development of hydrophilic multilayer structures for energy saving window applications using sol-gel spin coating

Controlling the Bandgaps of One-Dimensional TiO&lt;sub&gt;2&lt;/sub&gt;/SiO&lt;sub&gt;2&lt;/sub&gt;, TiO&lt;sub&gt;2&lt;/sub&gt;/SnO&lt;sub&gt;2&lt;/sub&gt;, and SiO&lt;sub&gt;2&lt;/sub&gt;/SnO&lt;sub&gt;2&lt;/sub&gt; Photonic Crystals Using the Transfer Matrix Method

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Controlling the Bandgaps of One-Dimensional TiO<sub>2</sub>/SiO<sub>2</sub>, TiO<sub>2</sub>/SnO<sub>2</sub>, and SiO<sub>2</sub>/SnO<sub>2</sub> Photonic Crystals Using the Transfer Matrix Method