Relationship investigation of structure and properties of Nd3+: Ga2O3-Al2O3-PbO-CaO via Raman, infrared, NMR and EPR spectroscopy
Source abstract
Abstract
Abstract A detailed study structure and luminescence properties of Nd3+: Ga2O3-Al2O3-PbO-CaO laser glasses was conducted. The network structure was mainly dominated by Al (IV) or Ga (IV). With the increase of the Al2O3 content, the Al (IV) content increases, whereas the Ga (IV) content decreases. Hyperfine sublevel correlation (HYSCORE) spectra reveal 27Al and 207Pb weak hyperfine coupling, which indicates that these nuclei are in the second- or higher-order Nd3+ coordination sphere. No 69Ga or 71Ga signals can be detected in the three-pulse electron spin echo envelope modulation (3P-ESEEM) and HYSCORE spectra. For germanate glass, the local environment of the Nd3+ ions is characterized by the Pb ligand, for aluminum gallium glasses, the Nd3+ ions are surrounded by Al3+ and Pb2+ ions, and for aluminum glass, Nd3+ ions are mainly surrounded by 27Al cations. The change in the structure and in the local environment of Nd3+ ions results in a change in the luminescence properties of glasses.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Glass properties and applications · Luminescence Properties of Advanced Materials · Solid State Laser Technologies
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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