[PDF] Top 20 Crystallization Studies on Se Te Cd Chalcogenide Glasses

... a multi-component glass is known to depend on several independent parameters such as band gap, coordination number, effective molecular weight and the type and fraction of various structural units formed. 8–11) The slight ... See full document

... ln ln 1   − − x   = − n ln α − 1.052 mE RT c + constant (5). where n is the Avrami index depending on the nucleation process, m is an integer which depends on the dimen- sionality of the crystal. Here n = m + 1 is ... See full document

... Prior studies have been conducted on this topic but there are still some areas to ...doped glasses are scarce in the ...doped glasses[165-174] and laser action been demonstrated in a bismuth doped ... See full document

... these glasses is also found in good command to form the glasses with ...the glasses with lower Bi content are easy to form compared to those with higher Bi ... See full document

... field, chalcogenide glasses are widely used in reversible phase change optical recording, memory devices, optical fibers, xerography, photolithography, infrared lenses and optical ...these glasses ... See full document

... Thermal analysis techniques, such as differential scanning calorimetry (DSC), thermogravimetric analysis (TGA) and thermomechanical analysis (TMA), enable a better understanding of the influence of temperature dynamics ... See full document

... of chalcogenide glasses in term of cry- stallization kinetics is of particular interest from funda- mental and applications point of ...views. Chalcogenide glasses have good infrared ... See full document

... crystals becomes larger, the dispersal effect extends over the IR spectrum to a longer wavelength region [14]. The FESEM images of the glass-ceramic GC-Sn6-476- 2.5 and GC-Sn4-445-10 crystallized at the peak temperature ... See full document

... While depositing the films, to ensure the desired composition x of the compound, TGA, DTA, and DSC studies have been carried out. TGA analysis provides a quantitative measurement of any weight changes associated ... See full document

... Prior studies have been conducted on this topic but there are still some areas to ...doped glasses are scarce in the ...doped glasses[165-174] and laser action been demonstrated in a bismuth doped ... See full document

... In addition to radiative transitions and transitions due to ion-ion interactions RE ions can also undergo transitions between electronic energy levels as a result of their interactions with vibrations of the host ... See full document

... Radiation-induced effects (RIEs) were perfectly justified in chalcogenide glassy semiconductors (ChGSs) since the earliest 1960s, the time of extensive research followed after a pioneer invention of N.A. Goryunova ... See full document

... The limited solubility of RE ions in chalcogenide glasses is a further factor which limits the development of a fibre laser [14]. When RE ions are present in significant quantities in any glass they appear ... See full document

... The method of Swanepoel [20] necessitates obtaining two interference transmission spectra through a thin film, one at normal incidence and another at oblique incidence. In his paper the method yielded the values of thin ... See full document

... A chalcogenide glass capable of infrared transmission which is either sulfur, selenium or tellurium based and consists of compositions of the formula ...gallium chalcogenide acts to increase the covalent ... See full document

... metallic glasses have been found in multicomponent alloy systems by using several solidification techniques 1) which make atomic random configurations of liquid phase freeze into a solid ...metallic glasses ... See full document

... of Te by Si on the optical gap and some other physical operating parameters of a quaternary chalcogenide As 30 Ge 10 Te 60-x Si x (where x = 0, 5, 10, 12 and 20 at %) thin ...10 Te 60-x Si x ... See full document

... The high-quality optical elements are required for the development of all-optical signal processing systems. Possibility of high-level integration of these elements in optical chips implies improved fabrication ... See full document

... and chalcogenide glasses and liquids and can also successfully justify the anomalous behavior of FSDP intensity at different temperature and pressure values and finally can explain the effect of addition of ... See full document

... tric te d here to that, commonly applied in the c ry s ta llin e case, o f an electro n ic conductor with a r e s is t iv it y value intermediate between that characterizing good conductors and insulators; but, in ... See full document