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

Structural and optical investigation of semiconductor CdSe/CdS core-shell quantum dot thin films

A B Sharma1, Sudhir Kumar Sharma, M Sharma

  • 1Department of Physics, Barkatullah University, Bhopal, M.P. 462026, India.

Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy
|November 29, 2008
PubMed

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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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