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Temperature Driven Reactant Solubilization Synthesis of BiCuOSe

Abstract : Phase-pure BiCuOSe, which is isostructural to the layered p-type transparent conductor LaCuOS, has been synthesized in high yield by a single-step hydrothermal reaction at low temperature (250 degrees C) and pressure (<20 atm). A moderate reaction temperature of 250 degrees C was sufficiently high to solubilize both Bi2O3 and Cu2O and stabilize monovalent copper and low enough to impede the oxidation of dianionic selenium. BiCuOSe exhibits a relatively high electrical conductivity (sigma approximately 3.3 S cm(-1)) and a reduced band gap (E(g) = 0.75 eV), which compare favorably with the optoelectronic properties of BiCuOS and the cerium-based oxysulfides, CeAgOS and CeCuOS.
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https://hal-normandie-univ.archives-ouvertes.fr/hal-03545115
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Submitted on : Thursday, January 27, 2022 - 9:43:51 AM
Last modification on : Saturday, June 25, 2022 - 9:57:31 AM

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Evan Stampler, William Sheets, Mariana Bertoni, Wilfrid Prellier, Thomas Mason, et al.. Temperature Driven Reactant Solubilization Synthesis of BiCuOSe. Inorganic Chemistry, American Chemical Society, 2008, 47 (21), pp.10009-10016. ⟨10.1021/ic801267m⟩. ⟨hal-03545115⟩

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