Lattice Anchoring Stabilizes α‑FAPbI3 Perovskite for High‑Performance X‑Ray Detectors (IMAGE)

Shanghai Jiao Tong University Journal Center

Lattice Anchoring Stabilizes α‑FAPbI3 Perovskite for High‑Performance X‑Ray Detectors

Caption

  • A lattice-anchoring strategy using low-dimensional perovskite addresses structural instability in α-formamidinium lead iodide (FAPbI3) by matching crystal lattice, mitigating residual stress and tensile strain.
  • Enhanced Pb-I bonding strength and reduced lattice strain improve structural stability and carrier mobility-lifetime product, enabling efficient charge transport.
  • Optimized X-ray detectors achieve high sensitivity (1.83 × 105 μC Gyair–1 cm–2), low detection limit (27.6 nGyair s–1), and stable performance under prolonged irradiation.

Credit

Yu-Hua Huang, Su-Yan Zou, Cong-Yi Sheng, Yu-Chuang Fang, Xu-Dong Wang, Wei Wei, Wen-Guang Li, Dai-Bin Kuang.

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License

CC BY-NC-ND

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