Photostimulated emission of KBr—In previously exposed to UV- or X-radiation

Попов, А. И.; Plavina, I.

doi:10.1016/0168-583x(95)00485-8

Cited by 9 publications

(5 citation statements)

References 11 publications

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“…8 shows the excitation and emission spectra of the three fluoride compounds. [22][23][24][25] As indicated above, the redox process induced under UV irradiation stabilized indium in the monovalent oxidation state. In the three fluorides, a large orange-red emission due to the A x ( 3 P 0 ) -1 A 1 ( 1 S 0 ) transition is observed, and the corresponding excitation bands peak at approximately 240 nm.…”

Section: Materials Advances Papermentioning

confidence: 77%

“…In addition, the Jahn-Teller effect is predominant among the spin-orbit couplings, and the spectral distribution in absorption and emission is strongly affected Figure 8 shows the excitation and emission spectra of the three fluoride compounds. [22][23][24][25] Page 14 of 21 Materials Advances View Article Online bonding needs to be considered to better understand the observed shifts in excitation and emission. In all the studied A 2 BInF 6 (A=B for K 3 InF 6 cryolite) compounds, indium cations are surrounded by fluorine anions.…”

Section: View Article Onlinementioning

confidence: 99%

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Emission colours of bistable photochromic compounds: Ce-doped alkaline (Rb, K, Na)–indium fluorides

et al. 2022

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Section: Materials Advances Papermentioning

confidence: 77%

Section: View Article Onlinementioning

confidence: 99%

Emission colours of bistable photochromic compounds: Ce-doped alkaline (Rb, K, Na)–indium fluorides

et al. 2022

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“…KBr crystals are used as carriers for samples in IR measurements [1] and as models in studies of radiation-induced processes [2][3][4][5][6]. Moreover, when KBr is doped with various impurities, it exhibits excellent radiation storage properties and has, therefore, been proposed as an X-ray and UV photostimulable storage phosphor [7], a thermoluminescent dosimeter [8], or a neutron storage phosphor [9].…”

Section: Introductionmentioning

confidence: 99%

Ab Initio Study on the Vibrational and Electronic Properties of Radiation-Induced Defects in Potassium Bromide

Platonenko,

Pankratov,

Kotomin

et al. 2024

Crystals

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The vibrational and electronic properties of several basic radiation defects in potassium bromide are computed at the quantum mechanical level using a periodic supercell approach based on hybrid functionals, an all-electron Gaussian-type basis set, and the Crystalcomputer code. The exciton energy in alkali halides is sufficient to create lattice defects, such as F–H Frenkel defect pairs, resulting in a relatively high concentration of single defects and their complexes. Here, we consider eight defects: the electronic F+- and F-centers (bromine vacancy without and with trapped electrons) and their dimers; hole H-center (neutral bromine atom forming the dumbbell ion with a regular Br− ion.); VK-center (Br2− molecular ion consisting of a hole and two regular ions); and two complex Br3− defects, combinations of several simple defects. The local geometry and the charge- and spin-density distributions of all defects are analyzed. Every defect shows its characteristic features in Raman spectra, and their comparison with available experimental data is discussed.

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“…The negative effects of UV radiation on humans, in particular on the skin and eyes [ 1 , 2 ], were the driving force for research on systems for monitoring the amount of absorbed UV doses. Many sensors and dosimeters for UV monitoring have been elaborated, such as photodiodes and actinometers [ 3 ], liquid crystal mixtures, solutions of photoluminescent dyes [ 4 , 5 ] and inorganic materials [ 6 , 7 , 8 , 9 , 10 ]. These systems are most often placed at an appropriate distance from the source of UV radiation and then, after the agreed time, the changes to the dosimeters are read.…”

Section: Introductionmentioning

confidence: 99%

NBT-Pluronic F-127 Hydrogels Printed on Flat Textiles as UV Radiation Sensors

et al. 2021

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This work reports on the surface-modified woven fabrics for use as UV radiation sensors. The cotton and polyamide fabrics were printed with radiochromic hydrogels using a screen-printing method. The hydrogels used as a printing paste were composed of water, poly(ethylene oxide)-block-poly(propylene oxide)-block-poly(ethylene oxide) (Pluronic F-127) as a gel matrix and nitro blue tetrazolium chloride as a radiation-sensitive compound. The development of the hydrogels’ colour occurs after exposure to UV radiation and its intensity increases with increasing absorbed dose. The features of the NBT-Pluronic F-127 radiochromic hydrogels and the fabrics printed with the hydrogels were examined using UV-Vis and reflectance spectrophotometry as well as scanning electron microscopy (SEM). The effects of NBT concentration and UV radiation type (UVA, UVB, UVC) on dose responses of the hydrogels and printed fabrics were also examined. The results obtained reveal that the fabrics printed with NBT-Pluronic F-127 hydrogels can be potentially useful as UV radiation sensors.

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Photostimulated emission of KBr—In previously exposed to UV- or X-radiation

Cited by 9 publications

References 11 publications

Emission colours of bistable photochromic compounds: Ce-doped alkaline (Rb, K, Na)–indium fluorides

Emission colours of bistable photochromic compounds: Ce-doped alkaline (Rb, K, Na)–indium fluorides

Ab Initio Study on the Vibrational and Electronic Properties of Radiation-Induced Defects in Potassium Bromide

NBT-Pluronic F-127 Hydrogels Printed on Flat Textiles as UV Radiation Sensors

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