During the past few decades, the research on persistent luminescent materials has focused
mainly on Eu2+-doped compounds. However, the yearly number of publications on non …

Photo-stimulated luminescence (PSL) is the process in which trapped charges are released
by photons and produce luminescence through recombination. The variegated optical …

Persistent luminescence is the phenomenon whereby a material keeps emitting light for
seconds to hours after the excitation has stopped. This chapter describes the history of this …

Electronic and structural properties of cubic Lu2O3 with either single oxygen vacancy,
oxygen vacancy–vacancy pair, or a Frenkel pair (an oxygen vacancy and an interstitial …

Ceramics of Lu 2 O 3 activated with either Tb 3+ or Pr 3+ and co-doped with one of the
transition metal ions–Ti, Hf or Nb–were investigated for their energy storage properties …

Ca_2Ge_7O_16 phosphor with a self-activated LPL was synthesized. The unique emission
of Ca_2Ge_7O_16 related to the creation of the oxygen vacancies was proved. With …

Electronic structure of Ta-doped cubic (bixbyite-type) lutetium oxide was analyzed using
augmented plane wave with local orbitals density functional theory (DFT) calculations with …

Quantum Espresso 6.5, 6.6 and 7.1 (QE, https://www. quantum-espresso. org/) module pw. x
(total energy calculations and geometry optimization) was used with mostly default settings …

Abstract Lu 2 O 3: Pr, Ti storage phosphors were prepared by means of high temperature
(1700° C) sintering both in a reducing atmosphere of the N 2-H 2 mixture (3: 1 by volume) …

Persistent luminescence as well as Thermoluminescence (TL), both the phenomena are
nothing but long-period afterglow having lifetime (τ) in the broad range of few minutes to few …