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Synthesis of In2 S3 Nanoplates and Their Self-Assembly into Superlattices

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Abstract:

Ultrathin nanoplates of -phase semiconductor In2S3 with the diameter of 50 ∼ 80 nm and a thickness of 1.85 nm were synthesized via a simple hot injection solution method with Hexadecylamine (HDA) as ligand, and the nanoplates self-assembled into superlattices by face to face stacking during evaporation of the solvent. The nanoplates and the assembled superlattices were characterized by XRD, TEM, HRTEM, XPS etc. The TEM and XRD results display that the nanocrystals are highly crystalline, hexagonal shape, and uniform in thickness. A strong quantum confinement effect of the 2D nanoplates was observed from the UV-Vis and PL spectra for the first time in the In2S3 nanoplates. A possible mechanism of the synthesis and assembly was proposed.

Keywords: IN2S3; NANOPLATES; QUANTUM CONFINEMENT; SELF-ASSEMBLY; SUPERLATTICES

Document Type: Research Article

DOI: http://dx.doi.org/10.1166/jnn.2007.881

Publication date: December 1, 2007

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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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