Luminescence and scintillation of Ce3+-doped high silica glass

Luminescence, scintillation, and energy transfer in SiO2 -Al2 O3 -B2 O3 -Gd2 O3 :Ce3+ ,Pr3+ glasses

“…In spite of a lower LY value of SABG:Ce,Pr glass with respect to Ce‐doped high silica glass (16% of BGO) reported in Ref. , the SABG:Ce,Pr glass shows a photopeak well‐separated from the Compton continuum (CC) in a pulse height spectrum of 662 keV γ‐rays, whereas the Ce‐doped high silica glass shows only the CC in the spectrum of γ‐rays. This is due to a higher density of the SABG glass with respect to the high silica glass (4.7 vs. 2.2 g cm −3 ).…”

“…Rare‐earth (RE)‐doped glasses are very useful materials for applications in solid‐state lighting and optical displays, as well as in the detection of X‐ or γ‐rays . Intense luminescence under UV and X‐ray excitations was obtained for the high‐silica glasses doped with Ce 3+ , Eu 2+ , or Tb 3+ . Dense oxide glasses with high‐Gd 2 O 3 content were also investigated for efficient detection of high energy photons .…”

Self‐reduction of Eu3+ to Eu2+ in europium‐doped Li2B4O7 glass prepared in air

“…[28][29][30] However, as one of the most promising scintillating activators in glasses and ceramics, divalent europium has been rarely proposed. [11][12][13] Herein, for the first time, the self-reduction of Eu 3+ to Eu 2+ ions in europium-doped Li 2 B 4 O 7 glass induced by partially replacing B 2 O 3 with BN was reported in the present work, and the optical properties including transmittance, photoluminescence and radioluminiescence spectra, together with the luminescence decay curves are systematically revealed. poured onto a 380°C preheated stainless-steel model and transferred to a 380°C muffle furnace as quickly as possible to release the thermal stress.…”

“…10 However, the divalent europium, Eu 2+ , with the lifetime of microsecond scale in luminescent materials has been rarely proposed for scintillation application in glass and glass ceramics. [11][12][13] There report lots of both Eu 3+ and Eu 2+ codoped crystalline phosphors and amorphous glass in literatures, especially on the possible self-reduction mechanism of Eu 3+ to Eu 2+ ions in luminescent materials prepared in air atmosphere. [14][15][16][17][18][19][20][21][22][23] This kind of self-reduction is considerably valid in the case of SrB 4 O 7 :Eu 2+ phosphors, but it seems weaker in the glass with the same chemical composition, 15 which suggests the microenvironments surrounding Eu 3+ ions in glasses differ noticeably from that in crystals.…”

Photo‐ and radioluminescence of Dy3+‐doped oxide glass with high‐Gd2O3 content

“…Rare‐earth (RE)‐doped glasses are very useful materials for applications in lighting and optical displays as well as in the detection of X‐ or γ‐rays . Intense luminescence under UV and X‐ray excitations was obtained for the high‐silica glasses doped with Ce 3+ , Eu 2+ , or Tb 3+ . For effective detection of X‐ or γ rays, the RE‐doped dense glasses containing high‐Gd 2 O 3 content at levels up to 30 mol.% in the glass hosts were investigated .…”