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Updated: Aug 12, 2026

Compact Quantum Dots for Single-molecule Imaging
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Published on: October 9, 2012

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超高分辨率,高保真度量子点像素,其图案是由介电电泳沉积的介电电泳沉积

Chengzhao Luo1, Yanhui Ding1, Zhenwei Ren2

  • 1School of Optoelectronic Science and Engineering & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou, 215006, China.

Light, science & applications
|September 26, 2024
PubMed
概括

研究人员开发了一种超高分辨率量子点 (QD) 图案的新方法,以99%的准确度实现每英寸23090像素 (PPI). 这种技术使得使用各种QD类型的高性能,电发光QD显示器成为可能.

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相关概念视频

Scanning Electron Microscopy01:07

Scanning Electron Microscopy

A scanning electron microscope (SEM) is used to study the surface features of a sample by using an electron beam that scans the sample surface in a two-dimensional manner. Typically, areas between ~1 centimeter to 5 micrometers in width can be imaged. SEM can be used to image bacteria, viruses, tissues as well as larger samples like insects. Conventional SEM gives a magnification ranging from 20X to 30,000X and spatial resolution of 50 to 100 nanometers.
Fundamental Principles
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Preparation of Samples for Electron Microscopy

To be visualized by an electron microscope, either transmission or scanning, biological samples need to be fixed (stabilized) so the electron beam does not destroy them and dried thoroughly (desiccated/dehydrated) so the vacuum does not affect them. Fixation needs to be done as quickly as possible because the sample properties will start changing as soon as it is removed from its natural environment. For example, in a tissue sample, the oxygen levels begin decreasing, causing an altered...