Radiation-induced Luminescence Properties of Tm-doped Bi4Ge3O12 Single Crystals

Abstract

We grew 0.1, 0.5, and 1% Tm-doped Bi 4 Ge 3 O 12 single crystals by the floating zone method. Their photoluminescence and scintillation properties were investigated in the range from visible to near-IR. Luminescence spectra and decay times consistent with the transitions of Tm 3+ were confirmed. X-ray-irradiated dose rate response properties were evaluated using the prepared samples and an InGaAs photodiode. The 1% Tm-doped sample showed the widest dynamic range (0.03-60 Gy/h) among the prepared samples.

Revisiting the Luminescence Properties of Er3+, Tm3+ and Ho3+ Doped Bi4ge3o12 Rod-Type Crystal Fibers for the Laser Application

“…All the measured fluorescence lifetimes are reported in Table 4, along with those which were already reported in the literature [21,22,30,31].…”

“…BGO crystals doped with transition metals of the iron group such as Cr, Mn, Fe and Co were studied for their photochromic and photorefractive behavior and their potential use in the production of optically induced holographic gratings [12][13][14][15]. BGO can also be doped rather easily with trivalent rare-earth ions and some of these rare-earth doped materials were investigated for lighting [16][17][18], temperature sensing [19] scintillating [20][21][22] and laser applications [23][24][25][26][27][28][29][30][31], the latter more specifically not only because of favorable emission properties but also because of several excellent optical, electrooptic and thermo-mechanical properties [23,[32][33][34] and because very stable, non-hygroscopic and high optical quality single crystals can be obtained in the form of large-size bulk materials as well as sub-millimeter rod-type crystal fibers by using well-mastered and low-temperature crystal growth techniques [1, [35][36][37]. This is not the case of many well-known reference laser materials for high power laser applications such as YLF (LiYF 4 ), YAG (Y 3 Al 5 O 12 ), YAP (YAlO 3 ) and (Y,Lu) 2 O 3 .…”

Photoluminescence and Radioluminescence Properties of Y3Al5O12 Doped with 3d-Transition Metal Ions

“…Although many scintillators have been studied in the last few decades, (4)(5)(6)(7) fundamental studies on novel scintillators still continue to achieve better performance than ever before. There have been reports on various types of scintillator, such as single crystals, (8)(9)(10)(11)(12)(13)(14)(15)(16)(17)(18)(19)(20)(21) nanocrystals, (22) crystalline films, (23) ceramics, (24)(25)(26)(27) glasses, (28)(29)(30)(31)(32)(33)(34)(35)(36)(37) plastics, (38) and organic-inorganic hybrid materials, (39)(40)(41)(42) even in the last few years. In terms of the luminescent center, specific dopants such as Ce, Eu, and Tl have been mainly used for commercial scintillators; however, other dopants are also of our interest.…”

Tm Concentration Dependence on Scintillation Properties of Y3Al5O12 Garnet Single Crystals

“…Therefore, the performance of scintillators strongly affects that of radiation detectors. Various scintillators, such as films, (6) ceramics, (7)(8)(9)(10)(11)(12) glasses, (13)(14)(15)(16)(17)(18)(19)(20)(21)(22) single crystals, (23)(24)(25)(26)(27)(28)(29)(30)(31)(32) and nanoparticles, (33) have been investigated to date. Single crystal materials tend to show excellent properties and are widely used as scintillators.…”