Radiation Stability and Analysis of Radiolysis Product of 1-Octanol

Abstract Metal halide perovskites have recently been reported as excellent scintillators for X-ray detection. However, perovskite based scintillators are susceptible to moisture and oxygen atmosphere, such as the water solubility of CsPbBr3, and oxidation vulnerability of Sn2+, Cu+. The traditional metal halide scintillators (NaI: Tl, LaBr3, etc.) are also severely restricted by their high hygroscopicity. Here we report a new kind of lead free perovskite with excellent water and radiation stability, Rb2Sn1-x Te x Cl6. The equivalent doping of Te could break the in-phase bonding interaction between neighboring octahedra in Rb2SnCl6, and thus decrease the electron and hole dimensionality. The optimized Te content of 5% resulted in high photoluminescence quantum yield of 92.4%, and low X-ray detection limit of 0.7 µGyair s−1. The photoluminescence and radioluminescence could be maintained without any loss when immersing in water or after 480,000 Gy radiations, outperforming previous perovskite and traditional metal halides scintillators.

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Synthesis and Radiation Stability of Some New Biologically Active Hydroquinoline and Pyrimido[4,5-b]quinoline Derivatives

Journal of the Chinese Chemical Society ◽

10.1002/jccs.200500177 ◽

2005 ◽

Vol 52 (6) ◽

pp. 1227-1236 ◽

Cited By ~ 15

Author(s):

S. M. Abdel-Gawad ◽

M. S. A. El-Gaby ◽

H. I. Heiba ◽

H. M. Aly ◽

M. M. Ghorab

Keyword(s):

Radiation Stability ◽

Biologically Active ◽

Quinoline Derivatives

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Materials and Photosensor Devices with High Radiation Stability

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.1117.107 ◽

2015 ◽

Vol 1117 ◽

pp. 107-113 ◽

Cited By ~ 1

Author(s):

Ilariy Rarenko ◽

Dmytro Korbutyak ◽

Volodymyr Koshkin ◽

Boris Danilchenko ◽

Leonid Kosyachenko ◽

...

Keyword(s):

Crystal Structure ◽

Metal Layer ◽

Chemical Properties ◽

Radiation Stability ◽

Reactor Irradiation ◽

High Concentration ◽

High Radiation ◽

Cubic Crystal ◽

Impurity Atoms ◽

Mixed Reactor

Semiconductor Hg3In2Te6 crystals and their analogous are solid solutions of In2Te3 and HgTe. Hg3In2Te6 crystals are congruently melted as chemical compound. Like In2Te3 the Hg3In2Te6 crystal has cubic crystal lattice with stoichiometric vacancies in their crystal structure. The electroconductivity, photoconductivity, mechanical, chemical properties of the crystals do not deteriorate after their irradiation by γ-photons with energies up to 1 MeV and doses up to 1018 cm-2 , by electrons with energies up to 300 MeV and doses up to 1019 cm-2 and by mixed reactor irradiation (filtered slow neutrons) with doses up to 1019 cm-2 [1,2]. This feature is determined by high concentration (~1021 cm-3) of stoihiometric vacancies (Vs) in crystal structure, where every third In-cation node is empty. These Vs are electroneutral, they capture all impurity atoms in these crystals and kept them in electroneutral state too. On the other hand this feature doesn't allow to form direct p-n junctions in these crystals by introducing the impurities. However, we have developed p-n junction analogues in form of Schottki diodes and corresponding photodiodes with semitransparent metal layer on single crystal Hg3In2Te6 substrate that allows irradiation to get into active region preserving this way all the advantages compared to p-n junction.

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