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Selective formation of ternary Cu–Ge–S nanostructures in solution

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Abstract

In this paper, special attention is given to ternary copper germanium sulfides (Cu–Ge–S), which belong to an important class of mixed-metal chalcogenide materials called the copper-based multinary sulfides (CMSs). Like most members of the CMS family, the Cu–Ge–S compounds display enormous potential in energy-related applications especially in their nanostructured forms, but there exists very little research on the preparation of Cu–Ge–S materials in the nanometer size range. Herein, we report a simple noninjection protocol for the selective synthesis of Cu–Ge–S nanomaterials. We show that variations in the solvent environment can lead to different types of Cu–Ge–S nanostructures (i.e., from large, faceted Cu8GeS6 to smaller, irregularly-shaped Cu2GeS3). Our investigation of the growth process revealed interesting formation pathways, which could help advance our understanding of the selective formation of compositionally and structurally diverse multinary materials in solution.

Graphical abstract: Selective formation of ternary Cu–Ge–S nanostructures in solution

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Publication details

The article was received on 27 Aug 2018, accepted on 07 Oct 2018 and first published on 08 Oct 2018


Article type: Paper
DOI: 10.1039/C8CE01443D
Citation: CrystEngComm, 2018, Advance Article
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    Selective formation of ternary Cu–Ge–S nanostructures in solution

    M. D. Regulacio, S. Y. Tee, S. H. Lim, Z. Zhang and M. Han, CrystEngComm, 2018, Advance Article , DOI: 10.1039/C8CE01443D

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