The Spectroscopic Analysis of Iron-Doped Soda-Lime-Silica Glass by Spectrophotometer and ESR Spectrometer

摘要

In this work, soda-lime-silica glass has been selected for coloring as base glass. The glass composition in mol% is (65-x) SiO_2: 25Na_2O: 10CaO: x Fe_2O_3, where x is 0.00, 0.02, 0.05, 0.10, 0.30, and 0.50. Optical absorption and electrons spin resonance spectroscopy were conducted for five different doping rates. The optical spectra of Fe_2O_3 doped glasses show three absorption bands at 380, 420 and 435 nm. These peaks correspond to Fe~(3+) ions. The ESR spectra of all glasses doped with Fe_2O_3, they show three strong ESR absorption peaks at the g = 2.005±0.003, 4.291±0.008 and 7.124±0.008. The intensity of these peaks is increased when the Fe_2O_3 concentration is increased.