Biomolecule-Assisted Green Route to Sb2S3 Crystals with Three-Dimensional Dandelionlike Patterns

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This paper describes a simple biomolecule-assisted solvothermal approach to fabricate the three-dimensional (3D) Sb2S3 microsphere with a wealth of novel morphologies in the presence of L-cysteine, which served as both the sulfur source and the directing molecule in the formation of antimony sulfide nanostructures. The effects of different solvents, and polyvinylpyrrolidone (PVP) on the morphology, structure, and phase composition of the as-prepared Sb2S3 products were discussed. The formation of 3D dandelionlike Sb2S3 microsphere was probably via the mechanism of the orientated aggregation growth of the Sb2S3 particles under the complexing action of L-cysteine, and co-action of the surfactant PVP. The absorption spectra of as-prepared 3D dandelionlike Sb2S3 structures show an optical shoulder band gap of 1.81 eV, which is near to the optimum for photovoltaic conversion.


Document Type: Research Article


Publication date: September 1, 2011

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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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