Table 3 Spectroscopic properties and crystallographic space groups of Ce3+ doped phosphates.

From: Single crystal growth, optical absorption and luminescence properties under VUV-UV synchrotron excitation of type III Ce3+:KGd(PO3)4, a promising scintillator material

Compound

Space group

Rav (Gd-O) [Å]

CF

λ5, λ4, λ3, λ2, λ1 [nm]

D(A)[cm−1]

εcfs [cm−1]

εc[cm−1]

Reff [Å]

αsp [10−30 m3]

Ref.

KGd0.996Ce0.004(PO3)4

P21

2.4065

ddh

194, 215, 226, 243.5, 302.5

16282

18489

7944

2.447

1.479

This work

KGd0.99Ce0.01P4O12

C2/c

2.408

ddh

193, 209, 221, 245, 307

16767

19240

7570

2.453

1.431

14

NaGd0.99Ce0.01(PO3)4

P21/n

—

2.401

—

ddh

—, —, 223, 256, 297

196, 207, 218, 254, 297

—

15670

—

17350

—

7582

—

2.443

—

1.398

2, 14

NaPr0.9Ce0.1P4O12

P21/n

—

ddh

195, 230, 252, 268, 295

15442

17300

7332

—

—

12

LiLa0.95Ce0.05P4O12

C2/c

—

ddh

—, —, —, —, 278

13369

—

—

—

—

13

  1. Note: Rav = average distance, CF = coordination figure, ddh = dodecahedron, λ5, λ4, λ3, λ2, λ1 = absorption bands of the 5d levels, D(A) = spectroscopic redshift, εc = centroid shift, εcfs = crystal field splitting, Reff = effective distance of Gd-O, and αsp = spectroscopic polarizability.
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