A New Chemical Approach to the Low-Temperature Growth of Single Crystalline Trigonal Selenium Scrolled Nanotubes and Nanowires

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Abstract:

In this paper, we present the formation of high quality trigonal phase selenium (t-Se) scrolled nanotubes and nanowires at 100 °C by a simple wet chemical method using of Na2S as new reducing agent and poly(vinylpyrolidone) (PVP) as the stabilizing agent. The Na2S used in this method is not only cheaper and easily available but also easy to handle as compared to many earlier reported inorganic reducing agents e.g., hydrazine hydrate, hydroxyl amine hydrochloride, sodium borohydride, H2O2 etc. The phase purity of the as obtained product is confirmed by X-ray diffraction (XRD), Raman spectroscopy. We have also proposed a possible growth mechanism for the formation of scroll-type nanotubes on the basis of a series of scanning electron microscopy (SEM) and transmission electron microscopy (TEM) studies of the product obtained at different reaction durations.

Keywords: CRACKING MECHANISM; NANOWIRES; SCROLLED NANOTUBES; SODIUM SUPHIDE; TRIGONAL SELENIUM

Document Type: Research Article

DOI: http://dx.doi.org/10.1166/jnn.2010.1726

Publication date: January 1, 2010

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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