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相关概念视频

The Colloidal State01:29

The Colloidal State

97
The formation of a colloidal system is exemplified by an aqueous solution containing Cl− ions is introduced to another containing Ag+ ions, resulting in the precipitation of solid AgCl as extremely tiny crystals. Instead of settling out as a filterable precipitate, these crystals remain suspended in the liquid, showcasing a colloidal system.A colloidal system involves colloidal particles within the approximate range of 1 to 1000 nm in at least one dimension, dispersed in a medium called...
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Colloidal precipitates01:09

Colloidal precipitates

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The high insolubility of some precipitates can result in an unfavorable relative supersaturation. This can lead to colloidal particles with a large surface-to-mass ratio, where adsorption is promoted. For instance, in the precipitation of silver chloride, silver ions are adsorbed on the surface of the colloidal particles, forming a primary layer. This layer attracts ions of opposite charge (such as nitrate ions), forming a diffuse secondary layer of adsorbed ions. This electric double layer...
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相关实验视频

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A Modular Microfluidic Technology for Systematic Studies of Colloidal Semiconductor Nanocrystals
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利用合纳米晶体库构建电子设备

Ji-Hyuk Choi1, Han Wang2, Soong Ju Oh3

  • 1Department of Materials Science and Engineering, University of Pennsylvania, Philadelphia, PA 19104, USA. Complex Assemblies of Soft Matter, CNRS-SOLVAY-PENN UMI 3254, Bristol, PA 19007-3624, USA. Rare Metals Research Center, Korea Institute of Geoscience and Mineral Resources, 124 Gwahang-no, Yuseong-Gu, Daejeon, 305-350, Korea.

Science (New York, N.Y.)
|April 29, 2016
PubMed
概括
此摘要是机器生成的。

研究人员使用基于溶液的工艺创建了全纳米晶体场效应晶体管. 这些设备用银,和氧化纳米晶体构建, 在柔性塑料上实现高电子流动性.

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科学领域:

  • 材料科学
  • 纳米技术
  • 电子工程

背景情况:

  • 体纳米晶体通过大小,形状和组成的控制提供可调节的特性.
  • 基于解决方案的加工使先进材料和设备的可扩展制造成为可能.

研究的目的:

  • 使用多种合纳米晶构建全纳米晶电子设备.
  • 在柔性基板上开发高性能场效应晶体管 (FET).

主要方法:

  • 使用金属银和半导体化纳米晶体作为电极和通道层.
  • 使用多电解质的绝缘氧化纳米晶体作为门绝缘体.
  • 包含金属纳米晶体,用于通道层的被动化和化.

主要成果:

  • 在柔性塑料基板上制造全纳米晶体场效应晶体管.
  • 在纳米晶体通道层中实现了21.7 cm2/Vs的高电子流动性.
  • 由于高介电常数门绝缘体,可以证明低电压运行.

结论:

  • 使用基于溶液的方法可以成功制造全纳米晶体设备.
  • 多种纳米晶体的整合使得高性能电子元件成为可能.
  • 这种方法对灵活的电子和先进的半导体应用具有前景.