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What is cathodoluminiscence? 


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Cathodoluminescence (CL) is the emission of light from a material when it is excited by incident electrons. CL microscopy utilizes this phenomenon to analyze and characterize various materials at the nanoscale. It has been used for the characterization of color centers, excitons, plasmonic and nanophotonic systems, as well as semiconductors, minerals, ceramics, and nanostructured materials . CL measurements can be performed in scanning transmission electron microscopes (STEM) and scanning electron microscopes (SEM) . CL microscopy offers advantages such as ultrahigh spatial resolution, the ability to analyze spatial, spectral, and temporal properties, and the correlation with other analytical techniques available in the electron microscope . It has been used for a wide range of applications, including imaging, spectroscopic detection, and opto-electronic investigations at the nanoscale . The technique has seen significant advancements in recent years, expanding its capabilities and potential for future research .

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Cathodoluminescence (CL) is a radiative light produced when an electron beam excites a luminescent material. It is widely used in imaging and spectroscopic detection of various samples with high spatial resolution.
Cathodoluminescence (CL) is the emission of light from a material when it interacts with an electron beam. It can be used to analyze the spatial, spectral, and temporal properties of materials and is a valuable characterization tool in electron microscopy.
Cathodoluminescence (CL) microscopy is a technique used for sub-diffraction-limited characterization of color centers and excitons in nanoscale and 2D materials.
Open accessJournal ArticleDOI
Toon Coenen, Nancy M. Haegel 
76 Citations
Cathodoluminescence (CL) is the emission of light from a material when it is excited by incident electrons.

Related Questions

What is cathoduluminescence?4 answersCathodoluminescence (CL) is the emission of light from a material when it is excited by incident electrons. CL microscopy has been used to characterize various materials, including semiconductors, minerals, ceramics, and nanostructured materials. It has been particularly useful in spatial mapping of luminescence variations and high-resolution imaging of compositional variations. CL measurements can be performed using scanning transmission electron microscopes (STEM) or scanning electron microscopes (SEM). However, in SEM, the excitation of individual defects has not yet been reported, resulting in the excitation of ensembles of defects. CL spectroscopy in an electron microscope can also be used to study the luminescence properties of scintillator nanofibers. Overall, CL is a valuable technique for studying the luminescent properties of materials at the nanoscale and has applications in various fields, including materials science and nanotechnology.
What are cathodic polarization?5 answersCathodic polarization is a technique used to modify the surface properties of materials by applying a negative voltage or current. It has been studied in various contexts. In the context of primary pressurized water reactor conditions, cathodic polarization at different voltages was found to reduce surface deposition and prevent the formation of surface deposits. In the context of titanium-based implant materials, cathodic polarization was reported to enhance the interaction with biomolecules by forming a titanium hydride layer on the surface. However, it was found that no hydride was created during the polarization process, and the biomolecule was attached to a modified oxide layer. In the context of electrochemical deposition, cathodic polarization was used to deposit biopolymer blends with controlled composition, thickness, and morphology. Overall, cathodic polarization is a versatile technique that can be used to modify the surface properties of materials in various applications.
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