Development of earth-abundant mixed-metal sulfide nanoparticles for use in solar energy conversion
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United States of America Patent
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Mar 18, 2014
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Jul 4, 2013
app pub date -
Jan 4, 2013
filing date -
Jan 4, 2012
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Abstract
This invention relates to a process for the phase-controlled synthesis of ternary and quaternary mixed-metal sulfide nanoparticles by reacting soft metal ions with hard metal ions in a high-boiling organic solvent in the presence of a complexing and activating ligands to control the reactivity of the metal ions. Ternary and quaternary mixed metal sulfides nanoparticles of copper, sulfur, and iron, aluminum, tin, and silicon are preferred. This invention also relates to the phase controlled preparation of polymorphs of bornite nanoparticles and the phase controlled preparation of stabilized α- and γ-chalconite nanoparticles.
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