期刊
JOURNAL OF LUMINESCENCE
卷 160, 期 -, 页码 276-281出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jlumin.2014.12.025
关键词
Erbium; Judd-Ofelt parameters; Diffuse reflectance; NaYF4
类别
资金
- National Science Foundation [EPS-0903804, CHE-0722632, CHE-0840507]
- State of South Dakota through the Governor's Office of Economic Development
We report the calculation of Er3+ Judd-Ofelt (JO) parameters for beta-phase NaYF4:Yb3+, Er3+. The parameters were extracted from measured emission intensity ratios and the diffuse reflectance spectrum, augmented by a single radiative rate constant The derived parameters were used to calculate the entire suite of radiative rate constants for the f-f transitions of Er3+ in the visible and near infrared (NIR) range and to calculate the absorbance spectrum. Two sets of JO parameter values, in units of pm(2), were calculated using two available sets of reduced matrix elements (Omega(2)=236, Omega(4)=-022, Omega(6)=1.24) and (Omega(2)=2.43, Omega(4)=0.21, Omega(6) = 122). (C) 2014 Elsevier B.V. All rights reserved.
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