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Novel Family of Semiconductors

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New research paper titled “Semiconducting silicon–phosphorus frameworks for caging exotic polycations” from researchers at Department of Chemistry, Iowa State University, and Ames Laboratory, U.S. Department of Energy.

Abstract
“A series of novel semiconductors AAe6Si12P20X (A = Na, K, Rb, Cs; Ae = Sr, Ba; X = Cl, Br, I) is reported. Their crystal structures feature a tetrahedral Si–P framework with large zeolite-like pores hosting two types of cations, monoatomic A+ and unprecedented octahedral [email protected]611+. Mixing of the A and Ba cations was detected by single crystal X-ray diffraction and confirmed by multinuclear solid state NMR. The reported compounds are highly stable semiconductors with a bandgap range from 1.4 to 2.0 eV.”

Find the technical paper here. Published June 2022 in the Chemical Communications journal.

https://doi.org/10.1039/D2CC02304K. Authors: Philip Yox, Andrew P. Porter, Rick W. Dorn, Victoria Kyveryga, Aaron J. Rossini, Kirill Kovnir.



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