One step urea assisted synthesis of polycrystalline Eu3+ doped KYP2O7 – luminescence and emission thermal quenching properties

Luminescence – structure relationships in MYP2O7:Eu3+ (M=K, Rb, Cs)

“…In the temperature range 300-500 K, similarly as in our previous work [14], the main mechanism responsible for depopulating the 5 D 0 level is thermalization of the higher lying 5 D 1 level. The energy to be bridged is about ΔEE1600 cm À 1 and the process then requires no more than two phonons.…”

“…3. One can refer to our previous work [14] for a detailed analysis of the Raman spectrum of KYP 2 O 7 . The spectra exhibit similar shape and intensity of peaks for all samples.…”

“…KYP 2 O 7 and CsYP 2 O 7 were prepared using one step urea assisted combustion synthesis described elsewhere [14,15]. RbYP 2 O 7 was prepared using the PVP (polyvinylpyrrolidone) assisted synthesis.…”

“…For example it was used recently as a dopant in NaYP 2 O 7 [13] and KYP 2 O 7 [14] matrices obtained by wet-chemistry methods to study the spectroscopic properties.…”

Phase equilibria in the ErPO4–KPO3 system

“…A review of the literature shows that double diphosphates in the pure phase form as well as doped with various ions (mainly Ln) have interesting optical and dielectric properties, which indicates the nature of the applications as scintillators or phosphor materials based on A I M III P 2 O 7 -type diphosphates [16][17][18][19][20][21][22][23] or as ionic conductors [2,4,11]. These compounds have diverse crystal structures.…”