Effect of Titanium Dioxide Doping on Optical Properties of Borosilicate Photochromic Glasses

Medhat, M.; El-Zaiat, S.Y.; Fayad, A. M.; Moustafa, F. A.; Shirif, M. A.

doi:10.1007/s12633-016-9484-y

Cited by 6 publications

(2 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The observed increase in Urbach energy with the increase of Nd 3+ concentration is due to the formation of bonding defects and non-bridging oxygen. These values are well within the range of 0.046-0.66 eV for amorphous semiconductors (Medhat et al, 2017).…”

Section: Optical Absorption Energy Band Gap and Urbach's Energy Studiessupporting

confidence: 69%

Nd3+ CONCENTRATION DEPENDENT OPTICAL FEATURES OF GADOLINIUM BOROPHOSPHO-TELLURITE GLASSES

Bulus¹,

Sheyin²,

Yayock³

et al. 2020

OJPS

View full text Add to dashboard Cite

Improving the optical response of glass host with two or more strong network formers via suitable controlled of rare earth ions is the key issue in the fabrication of optical based glass for solid state lasers and light emitting devices. Hence, we report the Nd3+ concentration dependent on optical parameters such as absorption edge, optical band gap (direct and indirect) and Urbach’s energy of gadolinium borophospho-tellurite glasses with chemical composition of 10Gd2O + 30B2O3 + 20P2O5 + (40-)TeO2 + Nd2O3 (where 0.0 ≤ x ≤ 1.0 mol%). The glass samples were synthesized by convectional melt quenching method and characterized through X-Ray Diffraction (XRD) and Ultraviolet Visible Near-Infrared (UV-Vis-NIR) measurements. The amorphous nature of these glasses was confirmed by X-Ray diffraction pattern while the UV-Vis-NIR spectra revealed six absorption peaks corresponding to the transition from ground level 4I9/2 to the various excited state of Nd3+ ions. It was found that the investigated range of Nd3+ doping concentrations has a great influence on aforementioned parameters. The excellent optical features established in the present glass host suggest their potentiality for solid-state lasers and other photonic applications. Bulus, I. | Department of Physics, School of Sciences, Kaduna State College of Education Gidan waya, Kafanchan, Nigeria

show abstract

Section: Optical Absorption Energy Band Gap and Urbach's Energy Studiessupporting

confidence: 69%

Nd3+ CONCENTRATION DEPENDENT OPTICAL FEATURES OF GADOLINIUM BOROPHOSPHO-TELLURITE GLASSES

Bulus¹,

Sheyin²,

Yayock³

et al. 2020

OJPS

View full text Add to dashboard Cite

show abstract

“…Figure S13 shows in situ TEM photos of the raw and photochromic Eu-Ag glass, indicating that the number of precipitated Ag nanoparticles increased obviously after photochromism. Upon the 365 nm lamp stimulation, Ag atoms gradually precipitate from the surface of AgCl microcrystals in the Eu-Ag glass, and the reaction Ag + + e – →Ag 0 occurs. − AgCl nanoparticles of about 8.96 nm are observed again in the decolorized glass after the 690 nm laser stimulation for 30 s (Figure h,i). The high-resolution TEM image of a single nanoparticle shows the lattice fringe corresponding to the (200) lattice plane of AgCl crystals (Figure j).…”

mentioning

confidence: 99%

Entirely Reversible Photochromic Glass with High Coloration and Luminescence Contrast for 3D Optical Storage

et al. 2022

View full text Add to dashboard Cite

Transparent glass with photochromism and luminescence has emerged as an attractive material due to its exciting prospects in the fields of information encryption and 3D optical storage. However, thermal stimulation has usually been used to bleach photochromic glass, limiting its applications. Herein, a new entirely photostimulation-induced reversible photochromic glass, doped with lanthanide ions and silver chloride (RE-Ag glass), was explored. Under the alternating stimulation of 365 nm light and a 690 nm laser, reversible photochromism (ΔR t = 91%) from transparent to black and luminescence modification (ΔR m = 93%) with high fatigue resistance were achieved in the RE-Ag glass. This is attributed to the formation and decomposition of silver nanoparticles in the glass host. The optical information can be recorded and erased in the RE-Ag glass with good rewritability and re-erasability, realizing a double-model 3D optical storage. The result highlights a new strategy to explore an entirely photostimulation induced photochromic glass with luminescence for 3D optical storage applications.

show abstract

Photochromic glasses and He+-implanted waveguides

Sun

Wang

Zhang

et al. 2022

J Mater Sci: Mater Electron

View full text Add to dashboard Cite

Effect of Titanium Dioxide Doping on Optical Properties of Borosilicate Photochromic Glasses

Cited by 6 publications

References 27 publications

Nd3+ CONCENTRATION DEPENDENT OPTICAL FEATURES OF GADOLINIUM BOROPHOSPHO-TELLURITE GLASSES

Nd3+ CONCENTRATION DEPENDENT OPTICAL FEATURES OF GADOLINIUM BOROPHOSPHO-TELLURITE GLASSES

Entirely Reversible Photochromic Glass with High Coloration and Luminescence Contrast for 3D Optical Storage

Photochromic glasses and He+-implanted waveguides

Contact Info

Product

Resources

About