ON the interconfigurational 4fn↔4fn−15d1 optical transitions of Ce3+ and Pr3+ in Ca9R3+ (PO4)7 [R3+=Al, Ga, Sc, Lu, Y, Gd, La]

ON the interconfigurational 4fn↔4fn−15d1 optical transitions of Ce3+ and Pr3+ in Ca9R3+... A systematic study of the optical properties of Ce3+ and Pr3+ in Ca9R3+ (PO4)7 [R3+=Al, Sc, Lu, Y, Gd, La] is presented. The materials crystallize in the Whitlockite structure of β-Ca3(PO4)2. From the room temperature excitation spectra, the crystal-field splitting and centroid shift of the Ce3+ 5d1 configuration is estimated. The optical properties (crystal-field splitting, the centroid shift and Stokes shift of emission) of Ce3+ is independent of the R3+ cation in Ca9R3+ (PO4)7. It is concluded that in this family of materials and in the parent β-Ca3(PO4)2 lattice, the Ce3+ and Pr3+ preferentially occupy the eight coordinated 18(b) Ca(3) site of the R3c space group. Relative to other phosphates, the covalence of the Ce3+–O2− bonding is high in this family of orthophosphate materials. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Luminescence Elsevier

ON the interconfigurational 4fn↔4fn−15d1 optical transitions of Ce3+ and Pr3+ in Ca9R3+ (PO4)7 [R3+=Al, Ga, Sc, Lu, Y, Gd, La]

Loading next page...
 
/lp/elsevier/on-the-interconfigurational-4fn-4fn-15d1-optical-transitions-of-ce3-zsbaT1ZC02
Publisher
Elsevier
Copyright
Copyright © 2016 Elsevier Ltd
ISSN
0022-2313
eISSN
1872-7883
D.O.I.
10.1016/j.jlumin.2016.04.004
Publisher site
See Article on Publisher Site

Abstract

A systematic study of the optical properties of Ce3+ and Pr3+ in Ca9R3+ (PO4)7 [R3+=Al, Sc, Lu, Y, Gd, La] is presented. The materials crystallize in the Whitlockite structure of β-Ca3(PO4)2. From the room temperature excitation spectra, the crystal-field splitting and centroid shift of the Ce3+ 5d1 configuration is estimated. The optical properties (crystal-field splitting, the centroid shift and Stokes shift of emission) of Ce3+ is independent of the R3+ cation in Ca9R3+ (PO4)7. It is concluded that in this family of materials and in the parent β-Ca3(PO4)2 lattice, the Ce3+ and Pr3+ preferentially occupy the eight coordinated 18(b) Ca(3) site of the R3c space group. Relative to other phosphates, the covalence of the Ce3+–O2− bonding is high in this family of orthophosphate materials.

Journal

Journal of LuminescenceElsevier

Published: Aug 1, 2016

References

  • J. Lumin.
    Srivastava, A.M.

You’re reading a free preview. Subscribe to read the entire article.


DeepDyve is your
personal research library

It’s your single place to instantly
discover and read the research
that matters to you.

Enjoy affordable access to
over 12 million articles from more than
10,000 peer-reviewed journals.

All for just $49/month

Explore the DeepDyve Library

Unlimited reading

Read as many articles as you need. Full articles with original layout, charts and figures. Read online, from anywhere.

Stay up to date

Keep up with your field with Personalized Recommendations and Follow Journals to get automatic updates.

Organize your research

It’s easy to organize your research with our built-in tools.

Your journals are on DeepDyve

Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.

All the latest content is available, no embargo periods.

See the journals in your area

Monthly Plan

  • Read unlimited articles
  • Personalized recommendations
  • No expiration
  • Print 20 pages per month
  • 20% off on PDF purchases
  • Organize your research
  • Get updates on your journals and topic searches

$49/month

Start Free Trial

14-day Free Trial

Best Deal — 39% off

Annual Plan

  • All the features of the Professional Plan, but for 39% off!
  • Billed annually
  • No expiration
  • For the normal price of 10 articles elsewhere, you get one full year of unlimited access to articles.

$588

$360/year

billed annually
Start Free Trial

14-day Free Trial