Syntheses, structures, and optical properties of the indium/GERMANIUM SELENIDE (cas 12065-10-0)s Cs4In8GeSe16, CsInSe2, and CsInGeSe4

Add time:08/03/2019    Source:sciencedirect.com

The three solid-state indium/germanium selenides Cs4In8GeSe16, CsInSe2, and CsInGeSe4 have been synthesized at 1173 K. The structure of Cs4In8GeSe16 is a three-dimensional framework whereas those of CsInSe2 and CsInGeSe4 comprise sheets separated by Cs cations. Both Cs4In8GeSe16 and CsInGeSe4 display In/Ge disorder. From optical absorption measurements these compounds have band gaps of 2.20 and 2.32 eV, respectively. All three compounds are charge balanced.

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