Perovskite-Based X-ray Detectors

Area of Science:

• Materials Science
• Physics
• Engineering

Background:

• X-ray detection is crucial for medical diagnosis, industrial radiography, and safety inspection.
• Medical X-ray detectors face increasing demand.
• Perovskite materials offer excellent carrier transport and high effective atomic numbers for radiation detection.

Purpose of the Study:

• To review X-ray detectors utilizing various halide perovskite materials.
• To discuss the device performance of different perovskite crystal structures.
• To highlight up-scaling technologies for commercialization.

Main Methods:

• Review of existing literature on perovskite-based X-ray detectors.
• Detailed discussion of device performance metrics.
• Analysis of different perovskite crystal structures (single-crystal, 2D layered, double, lead-free).

Main Results:

• Single-crystal perovskites demonstrate excellent performance due to superior photoelectric properties.
• Inorganic perovskites offer good environmental stability and high sensitivity.
• 2D layered perovskites suppress dark current but have lower sensitivity.
• Double perovskites provide better X-ray attenuation and lower dark current.
• Lead-free perovskites show potential due to high X-ray attenuation.

Conclusions:

• Perovskite materials are highly suitable for X-ray detection applications.
• Different perovskite structures offer unique advantages for detector design.
• Up-scaling fabrication processes are critical for commercializing perovskite X-ray detectors.