Synthesis and luminescent characteristic of Eu3+-doped (Gd,Lu)2O3 nanopowders

A study of the luminescence in near UV-pumped red-emitting novel Eu3+-doped Ba3Ca3(PO4)4 phosphors for white light emitting diodes

“…10 presents the emission spectra of Ba 3 Ca 3 (PO 4 ) 4 phosphors for various Eu 3+ concentrations. The emission spectra recorded upon excitation wavelength k = 394 nm consist of typical sharp lines ranging from 550 to 725 nm, corresponding to transition from the excited 5 D 0 level to 7 F J (J = 1, 2, 3 and 4) levels of Eu 3+ activators [43]. Since, no transitions related to 5 D 0 ?…”

Stimulatory effects of the fast setting and suitable degrading Ca–Si–Mg cement on both cementogenesis and angiogenesis differentiation of human periodontal ligament cells

“…In previous studies we had shown that the viability of pulp cells and osteoblast-like cells on CS is higher than Ctl for all culture times. 43 Shie et al found that soluble factors from calcium silicate substrates may be more important for proliferation and osteogenic differentiation in a growth medium. 25 The complexity of the bone supporting apparatus makes periodontal tissue regeneration a challenging field, as it involves the regeneration of cementum, a functionally oriented PDL tissue and an alveolar bone in the periodontal defect.…”

Single Crystal Preparation and Luminescent Properties of Lu2O3:Eu Scintillator by Vertical Bridgman Method

“…[ 29,30 ] In the ultraviolet range of the spectrum, the wide absorption peak at 264 nm should be attributed to the charge‐transfer (CT) transitions from the 2p orbital of O 2− to the 4f orbital of Eu 3+ . [ 4,31 ]…”

“…[ 33 ] And Figure a,b shows the normalized PLE spectra of Lu 2 O 3 :Eu monitored at 612 and 582 nm. It is obvious that the strongest excitation peaks (around 260 and 241 nm) must correspond to the Eu 3+ ─O 2− CT. [ 31 ] It is noted that the CT band of Eu 3+ in C 3i has a slightly higher energy because the levels of the Eu 3+ located in C 3i are higher than levels of the Eu 3+ in C 2 . [ 33 ] The narrow lines in the 280–550 nm range in the excitation spectra are related to the intraconfiguration 4f–4f transitions within Eu 3+ ions.…”