Universiti Teknologi Malaysia Institutional Repository. The effect of Ni-doping on the structural and optical properties of the layers was evaluated using appropriate techniques. The significant enhancement in the luminescence with the increase of AgCl is ascribed to the local field enhancement induced by Ag0 surface plasmon resonance and the energy transfer from fluorescent Ag0? Optical Properties of Erbium Doped Tellurite Refractive index and optical properties, Journal of Optoelectronics and Advanced Materials. The wavelength range is nmnm. An uncooled SiC-based electro-optic device is developed for gas sensing applications.

Optical Properties of Erbium Doped Tellurite 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. The absorption coefficient of the three samples increased slightly in the beginning of the scanning. 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. Thermal parameters such as glass transition temperature Tg , crystallization temperature Tc , melting temperature Tm and thermal stability? The XRD pattern confirms the amorphous nature of all samples. Sib Krishna Ghoshal, Prof.

The improved optical and structural properties suggest that the studied glasses are potential candidates for nanophotonic devices. Abstract Enhancing the optical properties of rare-earth doped inorganic glasses by embedding metallic nanoparticles NPs of controlled sizes and examining the mechanism of thdsis are important and challenging.

The wavelength range is nmnm. Mohan Babu, Suman Shakya, et al.

Optical Properties of Erbium Doped Tellurite Glasses

Rajendraprasad Reddy, Mutsumi Sugiyama, K. Forbidden band of LiNbO3 crystals was decreased as the iron doped. Zn1-xMnxO thin films are prepared using 2-methoxyethanol solution of zinc acetate dehydrate and manganese acetate tetrahydrate. It shows an initial decrease of band gap for small concentrations of Mn, followed by an increase at higher Mn doping concentrations. The significant enhancement in the luminescence with the increase of Thessis is ascribed to the local field enhancement induced by Ag0 surface plasmon resonance and the energy transfer from fluorescent Ag0?

  QUARTERLY ESSAY DAVID MARR GEORGE PELL

Universiti Teknologi Malaysia Institutional Telllurite.

tellurite glasses thesis

glaxses LiNbO3 is an important crystal which has piezoelectric, ferroelectric and electro-optical functions. The dependence of the refractive indices, absorption edge and optical damage in congruent HfO2-doped LiNbO3 crystal are reported.

Transmission and reflection spectrum of the LiNbO3 samples on the infrared-visible-ultraviolet light have been measured. Sm Al Salhi, M. The optical properties were characterized using UV-Vis where the transmittance and band gap value were affected by certain amount of Mn concentration. The photons of the gas excite electrons from the valence band to the acceptor level, which alters the electron density in these two states.

glassses

Spectrum Study of Crystal Fe: Materials Science Forum Volume The absorption coefficient of the three samples increased slightly in the beginning of the scanning. It has a wide range of applications. Affa Rozana Abdul Rashid, P. An uncooled SiC-based electro-optic device is developed for gas sensing applications. Consequently, the refractive index of the substrate changes, which, in turn, modifies the reflectivity of the substrate.

tellurite glasses thesis

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. 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.

  ESSAY AKU BRAWIJAYA KU UNTUK INDONESIA DAN DUNIA

Optical Properties of Erbium Doped Tellurite Glasses

Luminescence of erbium doped tellurite glass containing silver nanoparticles Jamaludin, Mohd. Mysen, Physics and chemistry of silicate glasses and melts, Eur. The structural properties measured by using FTIR show that as the AgCl content increases, the sharp infrared IR absorption peaks were consistently shifted from The Eg of the three samples were obtained as 3. Refractive index and optical properties, Journal of Optoelectronics and Advanced Materials.

These films achieve tunable band glsases characteristics by means of changing the dopant concentration.

Luminescence of erbium doped tellurite glass containing silver nanoparticles

Concentration dependent chemical durability, thermal stability and spectroscopic properties, Journal of Non-Crystalline Solids. Pal, Structural tllurite of borate glasses containing zinc and manganese oxides, Journal of Modern Physics. The XRD pattern confirms the amorphous nature of all samples. Each dopant creates an acceptor energy level within 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.

Luminescence of erbium doped tellurite glass containing silver nanoparticles. Zheng, Annealing time dependent 1.