Emission properties and temperature dependence of Cu+ luminescence in the CaO–CaF2–P2O5 ternary glass system co-doped with CuO and SnO

Relationship between Valence States of Copper in Aluminophosphate Glasses and the Emission Properties

“…The τ 1/e values of the ID1, ID2, and ID3 glasses are 24, 30, and 35 µs, respectively. Since these τ 1/e values are similar to that of Cu + centers, (28) it is suggested that the observed emission mainly originated from the trace amount of Cu + centers in these glasses.…”

“…It is expected that the observed emission will be derived from Cu + species, in which the d 9 s→d 10 transition is observed. (24)(25)(26)(27)(28) It is reported that this emission is affected by the local coordination field. Since the photon energies of emission bands in Fig.…”

TSL and OSL Properties of Cu-doped CaF2 Ceramics Prepared by Spark Plasma Sintering

“…Prior research revealed that typical Cu-doped phosphors have two decay time constants of microsecond order due to the 3d 9 4s 1 -3d 10 transition of Cu + ions. (23)(24)(25)(26) In our measurements, such values were obtained for the PL decay curves monitored at 490 nm. Thus, we assigned the origin of the 490 nm peak to the 3d 9 4s 1 -3d 10 transition of Cu + ions.…”

Thermal effects on the surface plasmon resonance of Cu nanoparticles in phosphate glass: impact on Cu+ luminescence

“…In the current system no PL enhancement is observed, but rather the thermal quenching of the broad Cu + emission band is exhibited concurring with the increase in the non-radiative processes depopulating the Cu + emitting states. [31][32][33] The excited states of the luminescent ions in the solid host decay non-radiatively by exciting lattice vibrations, i.e. by phonon emission.…”

“…where I(T) is the emission intensity at a given temperature, I 0 is the initial intensity, c is a constant, k B is Boltzmann's constant and E A is the activation energy for the thermal quenching. [31][32][33] Eqn (3) can be linearized as…”