Aug 2026· Inorganic Chemistry· Vol 65 32, pp.
18758-18764
· 0 citations· 49 references
Medicine
Abstract
Fe3GeTe2, a two-dimensional (2D) van der Waals magnet with intrinsic long-range ferromagnetic ordering, has attracted great attention in recent years. However, the synthesis of large-area Fe3GeTe2 crystals by chemical vapor deposition (CVD) remains challenging, for it is difficult to control the reactions among three precursors. Herein, we demonstrate the growth of large-area van der Waals Fe3GeTe2 nanosheets via the subtractive element growth mechanism. Different from previous methods including three precursors, we selected GeTe and FeCl3 as precursors. The obtained nanosheets exhibit triangular or hexagonal shapes, with lateral sizes up to 162 μm and thicknesses down to 5.6 nm. XRD, Raman, HRTEM, and SAED were used to characterize the crystal structure and phase purity, while EDS, and XPS analyses further verified the chemical composition and valence states. Magnetic measurements reveal robust ferromagnetism with a Curie temperature of ∼230 K. This work establishes a feasible chemical strategy for the scalable preparation of 2D Fe3GeTe2, thereby advancing its prospects in spintronic applications.
Two-dimensional (2D) magnets provide a versatile platform for exploring emergent quantum phases and developing next-generation spintronic devices. Despite this potential, high-throughput chemical vapor deposition (CVD) of ternary phase 2D magnets remains a significant challenge and is rarely explored. Here, we report a...
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Vanadium diboride (VB2), a layered ceramic comprising of vanadium atoms between boron honeycomb planes, has sought a renewed attention on account of its promising properties for energy storage and catalysis. The layered structure of VB2 also presents a possibility to yield two-dimensional counterparts. This aspect, h...
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LaFeO3 perovskites are promising candidates for supercapacitor electrodes, yet their performance is limited by low ionic conductivity and restricted active surface area. In this work, Er3+ was introduced at the A-site of LaFeO3 to increase defect concentration and improve ion transport within the perovskite lattice. Na...
Two-dimensional (2D) metal–organic framework (MOF) nanosheets possess great potential in gas separation, photocatalysis, and other advanced applications, benefiting from their ultrathin morphology, high specific surface area, and abundant exposed active sites. However, rational synthesis of 2D nanosheets from nonlame...
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Metastable wurtzite transition-metal compounds are of interest because their hexagonal symmetry can enable electronic and magnetic behaviors inaccessible to thermodynamically stable phases. Their synthesis in the 2D limit, however, remains challenging. Here, we demonstrate the direct growth of metastable 2D wurtzite Mn...
