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首页> 外文期刊>Journal of Electronic Materials >Morphological Manipulation of Solvothermal Prepared CdSe Nanostructures by Controlling the Growth Rate of Nanocrystals as a Kinetic Parameter
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Morphological Manipulation of Solvothermal Prepared CdSe Nanostructures by Controlling the Growth Rate of Nanocrystals as a Kinetic Parameter

机译:通过控制纳米晶体的生长速率作为动力学参数的溶剂热制备的CdSe纳米结构的形态操纵。

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摘要

The morphological manipulation, structural characterization, and optical properties of different cadmium selenide (CdSe) nanostructures are reported. Two different CdSe nanostructures, i.e., nanorods and nanoparticles, were grown by controlling the concentration of precursors (i.e., cadmium nitrate and selenium dioxide) in ethanolamine solvent. By manipulating the kinetic parameter of the process (i.e., growth rate) under constant growth driving force (i.e., degree of supersaturation), the morphology of CdSe nanostructures can be tailored from nanorods to nanoparticles. The optical properties of CdSe nanostructures were investigated using ultraviolet–visible (UV-vis) spectroscopy. The absorption edge of the samples showed a blue-shift. CdSe nanostructures prepared under optimized conditions showed good microstructural and optical properties for solar cell applications.
机译:报道了硒化镉(CdSe)纳米结构的形态学操纵,结构表征和光学性质。通过控制乙醇胺溶剂中前体(即硝酸镉和二氧化硒)的浓度,可以生长两种不同的CdSe纳米结构,即纳米棒和纳米颗粒。通过在恒定的生长驱动力(即过饱和度)下控制过程的动力学参数(即生长速率),可以将CdSe纳米结构的形态从纳米棒改造为纳米颗粒。 CdSe纳米结构的光学性质使用紫外可见光谱进行了研究。样品的吸收边缘显示出蓝移。在优化条件下制备的CdSe纳米结构在太阳能电池应用中显示出良好的微观结构和光学性质。

著录项

  • 来源
    《Journal of Electronic Materials》 |2012年第11期|p.3050-3055|共6页
  • 作者单位

    Department of Materials Science and Engineering, Sharif University of Technology, Azadi Street, Tehran, Iran;

    Department of Materials Science and Engineering, Sharif University of Technology, Azadi Street, Tehran, Iran;

    Department of Materials Science and Metallurgy, University of Cambridge, Pembroke Street, Cambridge, UK;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    CdSe; concentration of precursors; morphology; nanostructure;

    机译:CdSe;前驱体浓度;形貌;纳米结构;

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