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Son, Jae Sung
Nanomaterials Science and Engineering Lab (NSE)
Research Interests
  • Nanoparticle, 3D printing, Thermoelectrics, Electronics

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Advances in the Colloidal Synthesis of Two-Dimensional Semiconductor Nanoribbons

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Title
Advances in the Colloidal Synthesis of Two-Dimensional Semiconductor Nanoribbons
Author
Yang, JiwoongSon, Jae SungYu, Jung HoJoo, JinHyeon, Taeghwan
Keywords
cadmium chalcogenide; cluster; colloidal synthesis; nanoribbons; shape-control; two-dimensional structure
Issue Date
2013-04
Publisher
AMER CHEMICAL SOC
Citation
CHEMISTRY OF MATERIALS, v.25, no.8, pp.1190 - 1198
Abstract
The shape-controlled synthesis of colloidal semiconductor nanocrystals has attracted a lot of interest because of their shape-dependent physical and chemical properties. With the growing understanding of the shape evolution, several successful syntheses of two-dimensional (2D) nanocrystals have been reported. In this review, we focus on the recent advances in the colloidal synthesis of 2D CdSe nanoribbons with a wurtzite structure. 2D lamellar assemblies of CdSe clusters are generated in the early stage of the synthesis, and then they direct the formation of 2D structure. The dense organic layers on the {112I...0} facets significantly stabilize the 2D nanoribbons. The nanoribbons exhibit unique optical properties originating from the strong 1D quantum confinement within their extremely uniform and thin thickness. Interestingly, a large amount of manganese(II) ions can be incorporated into CdSe nanoribbons via a nucleation-controlled doping process. A high doping concentration and the strong confinement effect of the nanoribbons result in enhanced magneto-optical properties that are suitable for spintronic device applications. CdS nanoribbons have a very similar formation pathway, which suggests the cluster-assembled approaches can potentially be extended to various other materials.
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DOI
10.1021/cm303145f
ISSN
0897-4756
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MSE_Journal Papers
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