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Phosphoinositides and PIPs01:42

Phosphoinositides and PIPs

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Phosphoinositides are a group of phospholipids containing a glycerol backbone with two fatty acid chains and a phosphate attached to a myoinositol sugar ring. The inositol head group extends into the cytoplasm, where it is modified by adding phosphate groups to form phosphatidylinositol phosphates or PIPs.
Different phosphoinositides are synthesized and recruited on the cytosolic face of the plasma membrane. The localization of specific phosphoinositides concentrated in separate membrane...
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相关实验视频

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Synthesis of In37P20O2CR51 Clusters and Their Conversion to InP Quantum Dots
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氧化控制了InP/ZnSe量子点中的长轴外生长.

Reinout F Ubbink1, Tom Speelman2, Daniel Arenas Esteban1

  • 1Optoelectronic Materials Section, Faculty of Applied Sciences, Delft University of Technology, Van der Maasweg 9, 2629 HZ Delft, The Netherlands.

ACS nano
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PubMed
概括
此摘要是机器生成的。

调查化/化 (InP/ZnSe) 量子点显示,接口氧化产生酸盐层,阻碍外生长并影响可见光发射特性.

关键词:
印度化物化物.接口 接口 接口 接口 接口氧化过程中的氧化.摄影光的发光效应量子点是一个量子点.固态NMR是一种固态NMR.的化物化物.

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科学领域:

  • 材料科学 材料科学 材料科学
  • 纳米技术 纳米技术
  • 量子点研究研究 量子点研究

背景情况:

  • 化/化/硫化 (InP/ZnSe/ZnS) 核心/外/外量子点是可见光发射应用的关键.
  • 由于电荷不平衡和InP氧化,InP/ZnSe接口面临着挑战,缺陷的影响受到争论.

研究的目的:

  • 为了阐明InP/ZnSe接口的原子层结构.
  • 了解氧化和缺陷对量子点属性的作用.

主要方法:

  • 使用固态核磁共振 (ssNMR) 光谱法 (P,77Se,O).
  • 采用高角度环状暗场扫描传输电子显微镜 (HAADF-STEM).

主要成果:

  • 在有意氧化后观察到Se NMR光谱和晶体方向的明显变化.
  • 确定了高水平的接口氧化导致无形酸盐层.
  • 证明这种酸盐层抑制了ZnSe外的表生长.

结论:

  • 接口氧化显著改变了InP/ZnSe量子点结构.
  • 由于氧化而形成的无形酸盐层对外表层和量子点性能有害.