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Low-energy cathodoluminescence microscopy for the characterization of nanostructures

Author(s): Benjamin Dierre, Xiaoli Yuan and Takashi Sekiguchi

Journal: Science and Technology of Advanced Materials
ISSN 1468-6996

Volume: 11;
Issue: 4;
Start page: 043001;
Date: 2010;
Original page

Spatially and spectrally resolved low-energy cathodoluminescence (CL) microscopy was applied to the characterization of nanostructures. CL has the advantage of revealing not only the presence of luminescence centers but also their spatial distribution. The use of electrons as an excitation source allows a direct comparison with other electron-beam techniques. Thus, CL is a powerful method to correlate luminescence with the sample structure and to clarify the origin of the luminescence. However, caution is needed in the quantitative analysis of CL measurements. In this review, the advantages of cathodoluminescence for qualitative analysis and disadvantages for quantitative analysis are presented on the example of nanostructures.
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