Project TitleStable Semiconductor Materials for Detection of X-Ray and γ-Ray Radiation
Track Code2013-054
Short Description

Novel semiconducting chalcohalide material for detection of hard radiation

#materials #biomedical #healthcare #imaging


Northwestern scientists have synthesized a novel chalcohalide material, Tl6SI4, which can be used to detect X-ray and γ-ray (gamma ray) radiation for medical, industrial and defense applications. Materials currently used for detection of X-ray or γ-ray, also known as hard radiation, can be unstable at room temperature or difficult to produce. Prof. Kanatzidis and colleagues have addressed these issues by using lattice hybridization to produce mechanically robust materials that can be used for radiation detection. The crystals of Tl6SI4 can be grown simply, at room temperature, to produce detector-grade wafers with high resistivity (~10^10 Ωcm) and resolution (22 keV). Importantly, the increased hardness of these novel materials, could simplify crystal processing and device fabrication, which are key obstacles for commercial production of hard radiation detectors.

TagsHEALTHCARE: imaging, MATERIALS: biomedical
Posted DateJun 12, 2015 5:07 PM


Mercouri Kanatzidis*

Sandy Nguyen

Bruce Wessels

John Peters

Zhifu Liu


  • Detection of X-ray and γ-ray radiation


  • Mechanically robust
  • Strong conductivity response
  • High resistivity and resolution


IP Status

Contact Information

Dimitra Georganopoulou, PhD

Invention Manager

(p) 847.467.3095