Publications by authors named "Yangmin Tang"

Low dimensional metal halide perovskites (MHPs) have a soft lattice, leading to strong exciton phonon coupling and exciton localization. Microstructural stiffness engineering is an effective tool for modulating the mechanical and electrical properties of materials, but its complex effects on the luminescence of low dimensional MHPs remain lacking. Here, we report microstructural stiffness engineering of low dimensional MHPs by halogen replacement in Ag-X bonds and [AgX] (X = Br, Cl) units to increase the Young's modulus from 15.

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Article Synopsis
  • Fast-decaying scintillators have extremely short lifetimes, making them essential in fields like nuclear physics and medical diagnostics.
  • Metal halide perovskites (MHPs) are promising materials for these scintillators due to their easy synthesis and favorable optical properties, though improvements in their decay lifetime are still needed.
  • The paper discusses recent advancements in MHP design, focusing on their structural characteristics and exciton behaviors to enhance decay lifetimes, while also highlighting challenges and future opportunities for development.
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BiGeO (BGO) is a traditional scintillator, widely used in high-energy physics and nuclear medicine. However, it not only suffers from low scintillation intensity but also tends to be damaged by high-energy rays. Herein, we prepare pure-phase BGO materials enriched with Bi vacancies by rationally reduced Bi content, showing significantly enhanced luminescence intensity and irradiation resistance ability.

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