Growth window optimization for large-size quasi-two-dimensional Dion-Jacobson type perovskites.

Chem Commun (Camb)

Wuhan National Laboratory for Optoelectronics and School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan 430074, China.

Published: January 2025

AI Article Synopsis

  • Quasi-2D DJ type perovskites show potential for X-ray detection but typically struggle with phase segregation and small crystal sizes.
  • Researchers synthesized large single crystals of the quasi-2D perovskite (3AMPY)(MA)PbBr using temperature-controlled methods, leading to enhanced properties.
  • The produced X-ray detector demonstrated impressive metrics, including high resistivity and sensitivity, indicating these materials could be key for future optoelectronic applications.

Article Abstract

Quasi-2D DJ type perovskites theoretically offer excellent properties for X-ray detection, but they often face issues such as phase segregation and small crystal size. In this study, we synthesized large single crystals of quasi-2D DJ type perovskite (3AMPY)(MA)PbBr using temperature-controlled crystallization. The resulting X-ray detector exhibited high resistivity (1.78 × 10 Ω cm), a carrier mobility-lifetime () product of 9.32 × 10 cm V, a dark current of 5.6 × 10 A cm V, and a sensitivity of 129.86 μC Gy cm. These results demonstrate the potential of quasi-2D DJ type perovskites for high-performance X-ray detection and provide insights into improving crystal growth for optoelectronic applications.

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http://dx.doi.org/10.1039/d4cc06234eDOI Listing

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