Hydrothermal Growth of Double-Layer ZnO:Sc for X-ray Imaging Application DOI
Jingkun Chen, Xue Yang, Yucheng Li

и другие.

Crystal Growth & Design, Год журнала: 2024, Номер 24(17), С. 7262 - 7270

Опубликована: Авг. 19, 2024

The development of high-speed imaging technology requires ultrafast scintillators. ZnO is an excellent scintillator whose near-band-edge (NBE) radiation attenuation can reach subnanosecond levels. Homogeneous and unique double-layered ZnO:Sc microcrystals (1% doping) were prepared by adding polyvinylpyrrolidone during a hydrothermal reaction. growth process double-layer the effects Sc doping concentration on morphology studied. tended to nucleate into twins in weakly basic hexamethylenetetramine. c-axis was inhibited doping, pyramid accordance with Burton–Cabrera–Frank model (002) plane, according spiral dislocation. Sheet obtained under high-concentration doping. After hydrogen annealing, NBE intensity 0.5%-doped higher than that ZnO, mainly owing inhibition defect luminescence sheet morphology, which reduced self-absorption ZnO:Sc. decay time after annealing ultraviolet excitation less 1 ns. Combining annealed polydimethylsiloxane form flexible composite film enables scintillation screen be used for X-ray detection spatial resolution up 16 lp/mm.

Язык: Английский

Hydrothermal Growth of Double-Layer ZnO:Sc for X-ray Imaging Application DOI
Jingkun Chen, Xue Yang, Yucheng Li

и другие.

Crystal Growth & Design, Год журнала: 2024, Номер 24(17), С. 7262 - 7270

Опубликована: Авг. 19, 2024

The development of high-speed imaging technology requires ultrafast scintillators. ZnO is an excellent scintillator whose near-band-edge (NBE) radiation attenuation can reach subnanosecond levels. Homogeneous and unique double-layered ZnO:Sc microcrystals (1% doping) were prepared by adding polyvinylpyrrolidone during a hydrothermal reaction. growth process double-layer the effects Sc doping concentration on morphology studied. tended to nucleate into twins in weakly basic hexamethylenetetramine. c-axis was inhibited doping, pyramid accordance with Burton–Cabrera–Frank model (002) plane, according spiral dislocation. Sheet obtained under high-concentration doping. After hydrogen annealing, NBE intensity 0.5%-doped higher than that ZnO, mainly owing inhibition defect luminescence sheet morphology, which reduced self-absorption ZnO:Sc. decay time after annealing ultraviolet excitation less 1 ns. Combining annealed polydimethylsiloxane form flexible composite film enables scintillation screen be used for X-ray detection spatial resolution up 16 lp/mm.

Язык: Английский

Процитировано

0