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Colloidal precipitates01:09

Colloidal precipitates

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...
Colloids and Suspensions01:17

Colloids and Suspensions

Children at play often make suspensions such as mixtures of mud and water, flour and water, or a suspension of solid pigments in water known as tempera paint. These suspensions are heterogeneous mixtures composed of relatively large particles visible to the naked eye or seen with a magnifying glass. They are cloudy, and the suspended particles settle out after mixing. The suspended particles in a suspension settle out after some time of mixing. The separation of particles from a suspension is...
The Colloidal State01:29

The Colloidal State

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 the...

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関連する実験動画

Updated: May 16, 2026

Solid Lipid Nanoparticles (SLNs) for Intracellular Targeting Applications
08:19

Solid Lipid Nanoparticles (SLNs) for Intracellular Targeting Applications

Published on: November 17, 2015

コロイドのInSbナノ結晶は,コロイドのInSbナノ結晶と似ています.

Wenyong Liu1, Angela Y Chang, Richard D Schaller

  • 1Department of Chemistry and James Frank Institute, University of Chicago, Illinois 60637, United States.

Journal of the American Chemical Society
|December 4, 2012
PubMed
まとめ
この要約は機械生成です。

インジウムアンチモニド (InSb) ナノ結晶のコロイド合成により,調節可能な近赤外線光学特性が得られます. コア・シェル構造は光発光を高め,InSbフィルムは両極電荷伝送を示す.

さらに関連する動画

Fabrication of Spherical and Worm-shaped Micellar Nanocrystals by Combining Electrospray, Self-assembly, and Solvent-based Structure Control
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Fabrication of Spherical and Worm-shaped Micellar Nanocrystals by Combining Electrospray, Self-assembly, and Solvent-based Structure Control

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Quantitative and Qualitative Examination of Particle-particle Interactions Using Colloidal Probe Nanoscopy
13:15

Quantitative and Qualitative Examination of Particle-particle Interactions Using Colloidal Probe Nanoscopy

Published on: July 18, 2014

関連する実験動画

Last Updated: May 16, 2026

Solid Lipid Nanoparticles (SLNs) for Intracellular Targeting Applications
08:19

Solid Lipid Nanoparticles (SLNs) for Intracellular Targeting Applications

Published on: November 17, 2015

Fabrication of Spherical and Worm-shaped Micellar Nanocrystals by Combining Electrospray, Self-assembly, and Solvent-based Structure Control
06:16

Fabrication of Spherical and Worm-shaped Micellar Nanocrystals by Combining Electrospray, Self-assembly, and Solvent-based Structure Control

Published on: February 11, 2018

Quantitative and Qualitative Examination of Particle-particle Interactions Using Colloidal Probe Nanoscopy
13:15

Quantitative and Qualitative Examination of Particle-particle Interactions Using Colloidal Probe Nanoscopy

Published on: July 18, 2014

科学分野:

  • マテリアルサイエンス 材料科学
  • ナノテクノロジー ナノテクノロジー
  • 固体物理 固体物理学

背景:

  • インジウムアンチモニド (InSb) は,重要な光電子ポテンシャルを持つ重要なIII-V半導体である.
  • ナノ結晶のサイズと特性を正確に制御することは,高度なアプリケーションにとって極めて重要です.

研究 の 目的:

  • モノディスパースのInSbナノ結晶 (NCs) のコロイド合成を達成するために.
  • これらのInSb NCおよびそれらのコアシェル変種の光学および電子特性を調査する.

主な方法:

  • モノディスペルスのコロイド合成 InSb NCs.
  • InSb/CdSeおよびInSb/CdSのコアシェルナノ構造物の製造.
  • 光学的性質の特徴化 (興奮的移行,光発光).
  • InSb NCフィルムにおけるチャージ・トランスポートの調査.

主要な成果:

  • 1.03 eV (1200 nm) から 0.71 eV (1750 nm) までの調節可能な光学帯のギャップを持つ単一分散のInSb NCを合成しました.
  • サイズ調整可能なバンドエッジの光発光が観察されました.
  • InSb/CdSeとInSb/CdSのコアシェルナノ構造において,光発光が著しく強化された.
  • S(2-) イオンで封じられたInSb NCのフィルムでは,両極性電荷輸送が示されました.

結論:

  • コロイドのInSb NCは,近赤外線の光学特性を調節することができます.
  • コアシェル戦略は,光発光を効果的に強化する.
  • InSbのNCフィルムは,アンビポラー電子機器の将来性を示しています.