TELLURITE GLASSES THESIS

The X-ray diffraction studies revealed that nickel atoms were successively incorporated into ZnO host matrix without forming any detectable secondary phase. LiNbO3 is an important crystal which has piezoelectric, ferroelectric and electro-optical functions. The XRD pattern confirms the amorphous nature of all samples. Affa Rozana Abdul Rashid, P. The optical studies revealed a decrease of transmittance with the increase of Ni-doping content in the films and the evaluated energy band gap was found to be direct that decreased from 3.

Affa Rozana Abdul Rashid, P. Refractive index and optical properties, Journal of Optoelectronics and Advanced Materials. Abstract Enhancing the optical properties of rare-earth doped inorganic glasses by embedding metallic nanoparticles NPs of controlled sizes and examining the mechanism of enhancement are important and challenging. These films achieve tunable band gap characteristics by means of changing the dopant concentration. Simon, Structural and biological investigations of phosphage glasses with silver, Rom. Optical Properties of Erbium Doped Tellurite Komatsu, An interpretation of optical properties of oxides and oxide glasses in therms of the electronic ion polarizability and average single bond strength, Journal of the University of Chemical Technology and Metalurgy.

Optical Properties of Erbium Doped Tellurite Glasses

Cr Crystals Doped with HfO 2. Sib Krishna Ghoshal, Prof. Luminescence of erbium doped tellurite glass containing silver nanoparticles. They were characterized by X-ray diffraction, transmission electron microscopy, differential thermal analysis DTAand Fourier transform infrared FTIRultraviolet-visible-near infrared and photoluminescence spectroscopy.

Luminescence of erbium doped tellurite glass containing silver nanoparticles

The observed glass density ranges from 5. This change in reflectivity represents the optical signal of the sensor, which is probed remotely with a laser such as a helium-neon laser.

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Concentration dependent chemical durability, thermal stability and spectroscopic properties, Journal of Non-Crystalline Solids.

The optical studies revealed a decrease of transmittance with the increase of Ni-doping content in the films and the evaluated energy band gap was found to be direct that decreased from 3.

tellurite glasses thesis

Then there was a sudden change upward near 8. The XRD pattern confirms the amorphous nature of all samples.

Mysen, Physics and chemistry of silicate glasses and melts, Eur. The significant enhancement in the luminescence with the increase of AgCl is ascribed to the local field enhancement induced by Ag0 surface telourite resonance and the energy transfer from fluorescent Ag0? Forbidden band of LiNbO3 crystals was decreased as the iron doped. Spectrum Study of Crystal Fe: The tellurute coefficient was calculated by transmission and reflection spectrum. The optical properties were characterized using UV-Vis where the transmittance and band gap value were affected by certain amount of Mn concentration.

Mohan Babu, Suman Shakya, et al.

Optical Properties of Erbium Doped Tellurite Glasses

Mn doped ZnO films with different doping concentration were synthesized by sol gel method using the spin coating technique. These films achieve tunable band gap characteristics by means of changing the dopant concentration.

Each dopant creates an acceptor energy level teolurite the bandgap of the substrate so that the energy gap between this acceptor level and the valence band matches the quantum of energy emitted by the gas of interest. The transmission and reflection spectrum. Rajendraprasad Reddy, Mutsumi Sugiyama, K.

Abstract Enhancing the optical properties of rare-earth doped inorganic glasses by embedding metallic nanoparticles NPs of controlled sizes and examining the mechanism of enhancement are important and challenging. The dependence of the refractive indices, absorption edge and optical damage in congruent HfO2-doped LiNbO3 crystal are reported.

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tellurite glasses thesis

Luminescence of erbium doped tellurite glass containing silver nanoparticles Jamaludin, Mohd. The films had hexagonal shaped grains and the evaluated grain size varied in the range of 20 – 48 nm.

The absorption coefficient of the three samples increased slightly in the beginning of the scanning. Ahmed, New tellurite glasses: Komatsu, An interpretation of optical properties of oxides and oxide glasses in therms of the electronic ion polarizability and average single bond strength, Journal of the University of Chemical Technology and Metalurgy.

All the grown films were polycrystalline with the plane as the preferred orientation and the peak position shifted towards higher diffraction angle with the increase of doping content in the films.

tellurite glasses thesis

Tjesis uncooled SiC-based electro-optic device is developed for gas sensing applications. Materials Science Forum Volume The absorption peaks around cm-1 and cm-1 are related to the stretching vibrations of the hydroxyl group participating in the strong metal and hydrogen bonding, respectively.

Enhancing the optical properties of rare-earth doped inorganic glasses by embedding metallic nanoparticles NPs of controlled sizes and examining the mechanism of enhancement are important and challenging. Although the midwave infrared mm band is studied in this paper, the approach is applicable to other spectral bands.