Low‐Temperature Flux Synthesis, Crystal Structure and Ce‐Doped Luminescence of the First Lutetium Diphosphate NH₄LuP₂O₇

Abstract

The first lutetium diphosphate NH 4 LuP 2 O 7 has been prepared by a two-step, low-temperature self-flux synthesis in the presence of the F -anion, functioning as a mineralizer, which played a significant role in the synthetic process. The crystal structure has been characterized by single-crystal Xray diffraction. The title compound crystallizes in a monoclinic system of the space group P2 1 /c (No. 14), a = 7.651 (2)

Luminescence study and dosimetry approach of Ce on an α‐Sr2P2O7 phosphor synthesized by a high‐temperature combustion method

“…The 4f 1 ground state yields two levels 2 F 5/2 and 2 F 7/2 due to the spin‐orbit coupling of 4f. The energy discrepancy between the two Gaussian emission bands, the first at 363 nm (27,397 cm ‐1 ) and the second at 395 nm (25,316 cm ‐1 ) is about 2081 cm −1 . The broad PL emission band is due to the lowest crystal field component of the 5d 1 configuration to the two distinct levels of ground state.…”

Preparation and characterization of CaCO3 crystals and CaCO3/La2(CO3)3 composited fluorescent materials

“…The direction-induced effect enhances with an increase in the polarity of the groups. [29][30][31][32] According to the above discussion, a possible mechanism for the formation of CaCO 3 crystals with different morphologies is the interaction between the semipermeable celloidin membrane and cooperative organic reagents.…”

Thermoluminescent properties of Sr2P2O7 doped with copper and some rare earth elements

“…Recently, the crystal structure and luminescence spectra of a new potassium erbium pyrophosphate dihydrate ErKP 2 O 7 2H 2 O were published by Assaaoudi et al [16]. Ce-doped luminescence of the first lutetium diphosphate NH 4 LuP 2 O 7 was shown by Li et al [17].…”