Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
600481 | Colloids and Surfaces B: Biointerfaces | 2013 | 7 Pages |
Cysteine and triethanolamine capped CdTe nanoparticles have been synthesized using a simple aqueous solution based method. This method involves the reaction of tellurium powder with sodium borohydride (NaBH4) in water to produce telluride ions (Te2−), followed by the simultaneous addition of an aqueous solution of cadmium chloride or other cadmium source (acetate, carbonate and nitrate) and solution of l-cysteine ethyl ester hydrochloride or triethanolamine. The effect of capping agent on the size, structure and morphology of the as-synthesized nanoparticles was investigated. The particles were characterized using optical spectroscopy, transmission electron microscopy (TEM), high-resolution TEM (HRTEM), X-ray diffraction (XRD) and Fourier transform infrared (FT-IR) spectroscopy.
Graphical abstractFigure optionsDownload full-size imageDownload as PowerPoint slideHighlights► Cysteine and triethanolamine capped CdTe nanoparticles have been synthesized using a simple method. ► Both capping groups are effective for water soluble CdTe. ► The absorption and luminescence properties are reported. ► The electron microscopy results confirm the high quality of the material.