Perovskite semiconductors seeing right through next generation X-ray detectors

Researchers have put forward a very promising direct X-ray detector design, based on a rapidly emerging halide perovskite semiconductor. Perovskite is the general name for a particular type of periodic crystal structure, which, when composed of heavy elements like silver (Ag) and bismuth (Bi), are ideal for direct X-ray conversion. This research is a big step forward in the development of new, cheap and easy to make, and highly sensitive X-ray detectors.

Key Takeaways:

  • Perovskites are one of the strongest candidates because of their high X-ray sensitivity and excellent structural stability.
  • By optimising the materials and lowering the operating temperature, they were even able to improve the X-ray sensitivity of the device tenfold.

“KU Leuven researchers from the Roeffaers Lab and the Hofkens Group have now put forward a very promising direct X-ray detector design, based on a rapidly emerging halide perovskite semiconductor, with chemical formula Cs2AgBiBr6.”

Read more: https://phys.org/news/2018-09-perovskite-semiconductors-x-ray-detectors.html

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