Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1792057 | Journal of Crystal Growth | 2011 | 7 Pages |
CdSe/CdTe core/shell nanowire heterostructures were synthesized not only in a noncoordinating octadecene (ODE) solvent but also in a coordinating tri-n-octylphosphine oxide (TOPO) solvent, using a relatively safe CdO as the Cd precursor instead of the highly toxic Cd(Me)2 by a colloidal approach. The polycrystalline CdTe shell was formed in the Volmer–Weber island mode, and its morphology was controlled by delicately adjusting the reaction parameters. The as-prepared core/shell nanowires were characterized by various electron microscopic techniques, energy-dispersive X-ray spectroscopy (EDX) and corresponding elemental mapping, X-ray diffraction (XRD), UV–vis spectroscopy and transient absorption spectroscopy.
► Colloidal synthesis of the CdSe/CdTe core/shell nanowire heterostructures. ► Not only in the noncoordinating solvent but also in the coordinating solvent. ► Using CdO as Cd precursor. ► Morphology of polycrystalline CdTe shell was controllably tuned. ► Shell was grown in the Volmer–Weber island mode.