A solution synthetic route toward Bi2Se3 layered nanostructures with tunable thickness via weakening precursor reactivity

摘要: We developed a solution synthetic route to Bi2Se3 layered nanostructures through weakening the reactivity of precursors in hot-injection process. Oleylamine (OYA) and its content precursor solutions determined reliable synthesis tunable thickness nanostructures. The Raman shift out-of-plane vibration mode (A1g1) suggested that minimum could be down ∼3 nm [about three quintuple layers (QLs)] by varying OYA. Both energy dispersive spectroscopy X-ray photoelectronic proved there were no inorganic impurities imported into This approach would bring about more opportunities for flexible preparation promising nanomaterials with thermoelectric conversion, electrochemical hydrogen storage, even topological insulators.