Structure-Property Relations in Fluorophosphate Glasses: An Integrated Spectroscopic Strategy
Structure-Property Relations in Fluorophosphate Glasses: An Integrated Spectroscopic Strategy
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DOI:
10.1021/acs.jpcc.6b11405
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发表时间:
2017-02-09
影响因子:
3.7
通讯作者:
Eckert, Hellmut
中科院分区:
文献类型:
--
作者:
de Oliveira, Marcos, Jr.;Goncalves, Tassia S.;Eckert, Hellmut
A detailed structural investigation of a series of fluoride phosphate glasses with nominal compositions 25BaF(2)-25SrF(2)-(30-x)Al(PO3)(3)-xAlF(3)- (20-z)ScF3:zREF(3) with x = 25, 20, and 15, RE = Yb and Eu, and 0 F-7(1), and the lifetime values of the Eu3+ emitting level D-5(0). As a result, it was possible to obtain a global interpretation in terms of the associated quantitative ligand distribution (fluoride versus phosphate) in the first coordination sphere of the rare earth ions. The calibration of EPR and luminescence spectra on the basis of such solid state NMR data defines a new spectroscopic strategy for characterizing the rare-earth local environments in promising laser glasses.