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Updated: May 21, 2026

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Recent Advances in Cation-Engineered A3BX6 Metal Halide Perovskite for Enhanced Radiative Transition.

Xin Zhou1, Hang Yin1,2,3, Qinhua Wei1

  • 1College of Materials and Chemistry, China Jiliang University, Hangzhou 310018, China.

Research (Washington, D.C.)
|May 20, 2026
PubMed
Summary

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This summary is machine-generated.

B-site cation engineering in A3BX6 perovskites unlocks diverse luminescence for advanced photonic and radiation detection applications. Tailoring these materials enables high-performance photodetectors, LEDs, and scintillators.

Area of Science:

  • Materials Science
  • Solid-State Physics
  • Luminescence

Background:

  • A3BX6 perovskites are vacancy-ordered structures with tunable luminescence.
  • Luminescence arises from self-trapped excitons or dopant transitions.
  • B-site cation engineering significantly impacts optical properties.

Purpose of the Study:

  • To review how B-site chemistry influences structure-property-application relationships in A3BX6 perovskites.
  • To highlight the role of B-site cation engineering in tailoring luminescence.
  • To showcase A3BX6 perovskites for photonic and radiation applications.

Main Methods:

  • Systematic review of existing literature.
  • Analysis of structure-property relationships based on B-site cation type (ns2, transition-metal, rare-earth).

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  • Compilation of performance metrics for various applications.

    • Main Results:

    • P-block B-site A3BX6 perovskites show high photoluminescence efficiency, UV absorption, and applications in photodetectors and LEDs.
    • Rare-earth-based A3BX6 perovskites achieve high-efficiency electroluminescence and superior scintillation performance.
    • Specific examples include high-sensitivity photodetectors (1.23 × 10^12 Jones) and efficient blue LEDs (7.9% EQE).

    Conclusions:

    • B-site cation engineering is crucial for controlling luminescence mechanisms in A3BX6 perovskites.
    • A3BX6 perovskites offer versatile platforms for developing advanced photonic and radiation detection devices.
    • The diverse optical properties enable applications ranging from information encryption to high-resolution radiation sensing.