Structural And Optical Study Of Er3+ In Sol-Gel Silicate Glass

The structural and optical properties of Er(3+) doped with Al(NO(3))(3) sol-gel glass have been investigated. Thermo gravimetric analysis (TGA) shows an enormous mass loss between 40 degrees to 190 degrees C. Important structural changes on heating have been revealed by two endothermic peaks of Differential Thermal Analysis (DTA) which is further confirmed by Infra red (IR) spectroscopy and X-Ray Diffraction (XRD) analysis.. X-Ray Diffraction and Scanning Electron Micrograph of the sample heated to 800 degrees C suggests the particle size in nanometers. The oscillator strengths of the transitions in the absorption spectrum are parameterized in terms of three Judd-Ofelt (J.O) intensity parameters (Omega(2), Omega(4) and Omega(6)). The radiative property for the potential lasing transition (4)S(3/2) -> (4)I(15/2) of Er(3+) is found to be very encouraging for the studied glass.