The structural, optical and magnetic parameter of manganese doped strontium zinc borate glasses

Sol–gel synthesis and characterization of unexpected rod-like crystal fibers based on SiO2–(1-x)CaO–xSrO–P2O5 dried-gel

“…Sr [20]. As it can be seen in the sample Sr(0), at 3495 cm − 1 a wide peak appeared ascribed to OH bond but this peak was disappeared by further addition of Sr and totally disappeared for the sample Sr (100) [21]. It is probably due to the existence of four molecules of water in the structure of calcium nitrate, Ca(NO 3 ) 2 .4H 2 O, and the absence of water molecules in the chemical structure of strontium nitrate.…”

Controlling the redox reaction at the interface between sealing glasses and Cr-containing interconnect: Effect of competitive reaction

“…It is clear that peaks corresponding for Mn 2þ ion can be observed after excitation at 420 nm; whereas, no peak can be detected after excitation at 490 nm, indicating the absence of Mn 3þ ion in present work. It is well known that the valance states of Mn ions depend strongly on the manganese content in glasses [24]. The Mn 2þ ion is common in quenched glasses, while the Mn 3þ ion can only be detected in glasses with great Mn content, e.g., more than 10 mol % [25,26].…”

Physical, optical and structural studies of copper-doped lead oxychloro borate glasses

“…Structural and functional groups in amorphous solids are identified by FTIR and Raman studies [33][34][35]. .…”