Effect of Tb3+ ions on X-ray-induced defect formation in phosphate containing glasses
作者： H Ebendorff-Heidepriem , D Ehrt
DOI: 10.1016/S0925-3467(01)00182-3
关键词: Spectroscopy 、 Ultraviolet 、 Irradiation 、 Absorption (chemistry) 、 Phosphate glass 、 Ion 、 Nuclear chemistry 、 Electron paramagnetic resonance 、 Photochemistry 、 Chemistry 、 Absorption spectroscopy
摘要: The study of radiation-induced defect formation in glasses is growing interest for applications optics and photonics. influence Tb3+ ions on X-ray-induced defects has been examined with different phosphate contents. have characterized by optical absorption ESR spectroscopy. (Tb3+)+ are formed X-ray irradiation. They exhibit a broad charge transfer band at 370 nm. hole centres suppresses the intrinsic phosphate-related centres, absorbing visible region. PO3 ultraviolet region contribute mainly to electron corresponding centres. Immediately after irradiation, 5–10% oxidized. amount increases increasing content. stability room temperature depends glass composition melting conditions.
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