Photoluminescence and scintillation properties of Al(PO3)3–CeCl3–CsCl–CsPO3 glass scintillators

A Bifunctional Luminescent Whitening and Sensing Material Based on Photoluminescence and Mechanoluminescence

“…Furthermore, Figure d shows a comparison of white model cars in sunlight before and after spraying the luminescence layer. Obviously, the model car with only a white paint layer always exhibits an unpleasant aged yellow appearance, whereas the car with a luminescence layer exhibits a more attractive white appearance in sunlight. ,, Additionally, the luminescence layer shows good water resistance and irradiation stability. Figure e indicates that even after immersion in water for 4 h, the PL and ML intensities of the luminescence layer do not show a significant decrease.…”

“…As typical examples, some materials, such as stilbene biphenyls and SiO 2 nanoparticles, can absorb invisible ultraviolet light from sunlight and emit visible blue light, which is combined with the aged yellow light emitted by fabric to form white light. Consequently, it can make the fabric appear much whiter and brighter, which is called photoluminescence (PL) whitening. − Moreover, it has been found that without any preirradiation, some materials such as ZnS: Cu/Mn 2+ can emit intense light under mechanical stimuli, including friction, stretching, compression, or impact, and their brightness is quantitatively related to the applied stress, which is called mechanoluminescence (ML) sensing. − Accordingly, the PL whitening and ML sensing materials can utilize natural sunlight or ubiquitous mechanical energy in daily life to generate light emissions, avoiding the requirement of an artificial irradiation source. Therefore, these materials show great advantages in energy conservation and environmental protection. − However, the PL whitening and ML sensing effects have never been simultaneously observed in a single material.…”

Radiation-induced Luminescence Properties of Ce-doped ZnBr2-based Glasses

“…In recent years, Ce-doped oxyhalide and halide glasses have attracted much attention because of advantages including a low synthesis temperature and a low phonon energy compared with oxide glasses. (48)(49)(50)(51)(52) In addition, Ce-doped oxyhalide glasses show high LYs compared with those reported for glass scintillators; for example, the LYs reported for Ce-doped BaF 2 -Al 2 O 3 -B 2 O 3 , (53) CsCl-Al(PO 3 ) 3 -CsPO 3 , (54) and CsBr-Al(PO 3 ) 3 -CsPO 3 (55) were 1800, 2100, and 2700 photons/MeV, respectively. In the case of halide glasses, Ce-doped ZnCl 2 -based glasses such as CsCl-CaCl 2 -ZnCl 2 (56) and CsCl-BaCl 2 -ZnCl 2 (57) showed high quantum yields (QY) of ~87.6 and ~75.7, respectively.…”

Fundamental aspects, recent progress and future prospects of inorganic scintillators

“…Among the glasses listed in Table II, Eu-doped SiO 2 glass, 146) Eu-doped CaF 2 embedded in 42SiO 2 -24Al 2 O 3 -9LiF-25CaF 2 -0.1Eu 2 O 3 glass ceramics, 158) Ce-doped 33.4SiO 2 -33.3LiF-33.1GdBr 3 glass, 177) Ce-doped 65SiO 2 − 20Al 2 O 3 -15BaF 2 -Gd 2 O 3 glass, 195) Ce-doped 30BaF 2 -20Al 2 O 3 -50B 2 O 3 glass, 199) Ce-doped Al(PO 3 ) 3 -CsPO 3 -0.5CsCl 206) glass, and Ce:BaO 2 -10Gd 2 O 3 -3SiO 2 glass 223) show a notable high light yield under γ-rays irradiation. In a typical manner, if the sample does not show a significant signal in the pulse height with γ-ray excitation, an α-ray is used as an irradiation source instead, since the energy of a typical α-ray source (5.5 MeV by 241 Am) is larger than that of typical γ-ray source (0.662 MeV by 137 Cs).…”