Electronic properties and europium ion photoluminescence behaviors in Sr2CeO4 phosphor

Electronic structure analysis and properties of Sr2CeO4 grown by sol–gel method

“…The difference in the binding energy between two lines related to two kinds of bonds is 1.2 eV. This is in agreements with the energy difference in the absorption peaks (4.63 and 3.55 eV) and their ratio [22].…”

“…The energy gap estimated from the valence band measurements is about 1.4 eV. Taking the Fermi level situated in the middle of the energy gap, the full gap width is of order 2.8 eV what is in agreement with experiment and theoretical predictions for Sr 2 CeO 4 equal 2.64 eV [22].…”

Luminescence variations in europium-doped silicon-substituted hydroxyapatite nanobiophosphor via three different methods

“…Fundamentally, the light emission ability of materials is strongly affected by their host matrices, activators, defects, and crystallinity of materials [3,4]. This encouraged scientists and engineers to explore new methods of designing materials by tailoring the physical and chemical characteristics of materials, for example, by doping with strong and stable light emission materials and designing the suitable host materials for stimulating energy transfer from the host matrix to the activator [5,6].…”

An open aperture z-scan study of Sr2CeO4 blue phosphor

“…The UV-Vis absorption spectrum of pure Sr 2 CeO 4 is composed of two absorption peaks centering around 275 nm (4.52 eV) and 322 nm (3.85 eV) respectively. The broad band absorption from 220 nm to 450 nm was due to the electron transition from O 2− anti-bonding to the lowest empty orbital of Ce 4+ that is the electron transition from the valence band to the conduction band [11,13,14]. According to Tauc's law [12], the absorption co-efficient is found to follow the relation…”