Researchers from Dongguan University of Technology have developed a high-performance X-ray detector based on a graphene/perovskite heterostructure, addressing the limitations of traditional perovskite detectors that suffer from charge recombination in thick and defect-rich films.
By exploiting graphene’s exceptional carrier mobility (> 10⁴ cm²·V⁻¹·s⁻¹), the device achieves efficient charge transport and reduced non-radiative recombination at the interface with CsPbBr₃. Incorporating a MAPbCl₃ buffer layer minimizes lattice mismatch at the perovskite/Si interface, enhancing mechanical adhesion by an order of magnitude.
Researchers from Dongguan University of Technology have developed a high-performance X-ray detector based on a graphene/perovskite heterostructure, addressing the limitations of traditional perovskite detectors that suffer from charge recombination in thick and defect-rich films. By exploiting graphene’s exceptional carrier mobility (> 10⁴ cm²·V⁻¹·s⁻¹), the device achieves efficient charge transport and reduced non-radiative recombination at the interface with CsPbBr₃. Incorporating a MAPbCl₃ buffer layer minimizes lattice mismatch at the perovskite/Si interface, enhancing mechanical adhesion by an order of magnitude.
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