Optical and mechanical properties of Sol-gel prepared Titania (TiO<sub>2</sub>) –Silica (SiO<sub>2</sub>) mixed thin films ‘as prepared at 300 K’ without any post heat treatment

Pratima, B. M.; Valleti, Krishna; Subrahmanyam, A.

doi:10.1088/2053-1591/aaecbf

Cited by 7 publications

(2 citation statements)

References 46 publications

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“…The thermal-broadening effect and slight decrease in the absorption coefficient may be perceived for the 3 Н4→ 1 D2 absorption band at 586 nm as well. After doping the glasses with Pr 3+ ions, as shown in Figure 2a,b, absorption peaks are located at 441 and 447 nm The optical band gap of SCMS:Pr 3+ glass was calculated empl was presented in [19][20][21]:…”

Section: Absorption Spectra Band Gap and Refractive Indexmentioning

confidence: 99%

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UVC Up-Conversion and Vis-NIR Luminescence Examined in SrO-CaO-MgO-SiO2 Glasses Doped with Pr3+

Bezkrovna,

Lisiecki,

Macalik

et al. 2024

Materials

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The application of ultraviolet-C light in the field of surface treatment or photodynamic therapy is highly prospective. In this regard, the stable fluorescent silicate SrO-CaO-MgO-SiO2-Pr2O3 glasses able to effectively convert visible excitation on the ultraviolet praseodymium emission were fabricated and examined. An unusual wide-range visible-to-UVC up-conversion within 240–410 nm has been achieved in Pr3+-doped glasses, revealing their potential advantage in different sophisticated disinfection technologies. The integrated emission intensity was studied as a function of light excitation power to assess a mechanism attributed to UVC luminescence. Especially, it was revealed that the multicomponent silicate glass qualities and praseodymium 3PJ excited state peculiarities are favorable to obtaining useful broadband ultraviolet up-converted luminescence. The glass dispersion qualities were determined between 450–2300 nm. The impact of praseodymium concentration on Vis-NIR spectroscopic glass qualities was evaluated employing absorption spectra, emission spectra, and decay curves of luminescence associated with two involved praseodymium excited states. Especially, efficient interionic interactions can be inferred by investigating the decrease in 1D2 state experimental lifetime in the heavily doped samples. Examination of absorption spectra as a function of temperature implied that excitation at 445 nm should be quite effective up to T = 625 K. Contrary to this, temperature elevation gives rise to a moderate lowering of the visible praseodymium luminescence.

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Section: Absorption Spectra Band Gap and Refractive Indexmentioning

confidence: 99%

“…The optical band gap of SCMS:Pr 3+ glass was calculated employing Equation (1), as it was presented in [19][20][21]:…”

Section: Absorption Spectra Band Gap and Refractive Indexmentioning

confidence: 99%

UVC Up-Conversion and Vis-NIR Luminescence Examined in SrO-CaO-MgO-SiO2 Glasses Doped with Pr3+

Bezkrovna,

Lisiecki,

Macalik

et al. 2024

Materials

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TiO2 coatings prepared by sol-gel and electrochemical methodologies

Litter

Vera

Traid

2020

Sol-Gel Derived Optical and Photonic Materials

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Preparation and properties of a high-entropy amorphous oxide with high refractive index by containerless solidification

Zhang

Wang³

et al. 2022

Ceramics International

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Optical and mechanical properties of Sol-gel prepared Titania (TiO₂) –Silica (SiO₂) mixed thin films ‘as prepared at 300 K’ without any post heat treatment

Cited by 7 publications

References 46 publications

UVC Up-Conversion and Vis-NIR Luminescence Examined in SrO-CaO-MgO-SiO2 Glasses Doped with Pr3+

UVC Up-Conversion and Vis-NIR Luminescence Examined in SrO-CaO-MgO-SiO2 Glasses Doped with Pr3+

TiO2 coatings prepared by sol-gel and electrochemical methodologies

Preparation and properties of a high-entropy amorphous oxide with high refractive index by containerless solidification

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Optical and mechanical properties of Sol-gel prepared Titania (TiO2) –Silica (SiO2) mixed thin films ‘as prepared at 300 K’ without any post heat treatment

Cited by 7 publications

References 46 publications

UVC Up-Conversion and Vis-NIR Luminescence Examined in SrO-CaO-MgO-SiO2 Glasses Doped with Pr3+

UVC Up-Conversion and Vis-NIR Luminescence Examined in SrO-CaO-MgO-SiO2 Glasses Doped with Pr3+

TiO2 coatings prepared by sol-gel and electrochemical methodologies

Preparation and properties of a high-entropy amorphous oxide with high refractive index by containerless solidification

Contact Info

Product

Resources

About

Optical and mechanical properties of Sol-gel prepared Titania (TiO₂) –Silica (SiO₂) mixed thin films ‘as prepared at 300 K’ without any post heat treatment