Fabrication of Cd Metal Hexagonal Semi-Hollow Microprisms by Modified Thermal Reduction of CdO
We report here single crystalline cadmium (Cd) metal hexagonal microprisms (CdHMPs) with semi-hollow interior fabricated by modified thermal reduction of cadmium oxide (CdO) powder at 800 °C for 90 minutes under NH3 gas ambient inside horizontal tube furnace. CdHMPs were
observed to be about 2–3 μm in diameter and 5–6 m in length. The as-synthesized CdHMPs were characterized by X-ray diffraction (XRD), energy dispersive X-ray spectroscopy (EDS), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and selected area
electron diffraction (SAED). Vapour–solid (VS) process based growth mechanism is proposed for the formation of Cd hexagonal microprisms. Room temperature photoluminescence (PL) spectrum for Cd metal microprisms exhibited a prominent emission band at 352 which may be owing to surface
oxidation effects or induced defects.
Keywords: CD METAL; PL PROPERTIES; THERMAL REDUCTION
Document Type: Research Article
Publication date: 01 January 2012
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