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.
- 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.”