Northwestern University

Uchicago Argonne, LLC

Michigan State University

Duck Young Chung

Mercouri G Kanatzidis

Yihui He

Daniel G Chica

Wenwen Lin

Tim Hogan

Sandrine Sportouch

Stephane DeNardi

Lykourgos Iordanidis

Carl R Kannewurf

Stephane Denardi

Inorganic perovskites doped with oxygen atoms or fluorine atoms, methods for making the doped perovskites, and hard radiation detectors incorporating the doped perovskites as photoactive layers are provided. The doped perovskites utilize lead oxide, lead fluoride, or compounds that thermally decompose into lead oxide or lead fluoride as dopant atom sources. During the crystallization of a perovskite in the presence of the dopant atom sources, oxygen or fluoride atoms from the dopant source are incorporated into the perovskite crystal lattice.

Oxygen- and fluorine-doped cesium and rubidium lead perovskite compounds for hard radiation detection

Inorganic compounds having the formula LiMPQ, where M is Ga, In, Bi, Sb, As, Al, or a combination thereof, and Q is S and/or Se, are provided. Methods and devices for detecting incident neutrons and alpha-particles using the compounds are also provided. For thermal neutron detection applications, the compounds can be enriched with lithium-6 isotope (Li) to enhance their neutron detecting capabilities.

Lithium-containing chalcophosphates for thermal neutron detection

A family of isostructural compounds have been prepared having the general formula A,Pb,Bi,Q,. These compounds possess a NaCl lattice type structure as well as low thermal conductivity and controlled electrical conductivity. Furthermore, the electrical properties can be controlled by varying the values for n and m. These isostructural compounds can be used for semiconductor applications such as detectors, lasers and photovoltaic cells. These compounds also have enhanced thermoelectric properties making them excellent semiconductor materials for fabrication of thermoelectric devices.

Conductive isostructural compounds

A series of alkali metal bismuth or bismuth and antimony, antimony chalcogenides (Te or S) are described. The compounds have a unique combination electrical properties.

Alkali metal chalcogenides of bismuth alone or with antimony

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Duck Young Chung