Sustainable perovskite materials for next-generation X-ray imaging

X-rays are widely applied in medical diagnostics, security screening and scientific research. The growing demand for X-ray imaging has increased the frequency of human exposure to ionizing X-rays, directly increasing radiation-related health risks. To minimize the health risks, this project aims to rationally design materials that enable more sensitive digital X-ray detectors, thus allowing to lower the radiation dose. Metal halide perovskite semiconductors have emerged as a highly promising material class for sensitive X-ray detection because of their outstanding optoelectronic properties, such as strong X-ray absorption, and efficient charge carrier generation and transport. However, the intrinsic instability and toxicity of popular lead-based perovskites hinders their large-scale application. This project aims for a fundamental understanding of the chemical and photophysical strengths and limitations of perovskites for X-ray detection and aims to rationally develop highly sensitive, sustainable lead-free perovskites through micromanaging their electronic structure.

Keywords:Photosensing, Semiconductor materials, Photophysical properties

Disciplines:Chemistry of clusters, colloids and nanomaterials