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 18 million articles from more than
15,000 peer-reviewed journals.

All for just $49/month

Explore the DeepDyve Library

Search

Query the DeepDyve database, plus search all of PubMed and Google Scholar seamlessly

Organize

Save any article or search result from DeepDyve, PubMed, and Google Scholar... all in one place.

Access

Get unlimited, online access to over 18 million full-text articles from more than 15,000 scientific journals.

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

DeepDyve

Freelancer

DeepDyve

Pro

Price

FREE

$49/month
$360/year

Save searches from
Google Scholar,
PubMed

Create lists to
organize your research

Export lists, citations

Read DeepDyve articles

Abstract access only

Unlimited access to over
18 million full-text articles

Print

20 pages / month

PDF Discount

20% off