Electron Mobility
Electron Mobility - Related Videos
10:31
Plasma-assisted Molecular Beam Epitaxy of N-polar InAlN-barrier High-electron-mobility Transistors
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Cited by 2 •
2016
Molecular beam epitaxy is used to grow N-polar InAlN-barrier high-electron-mobility transistors (HEMTs). Control of the wafer preparation, layer growth conditions and epitaxial structure results in smooth, compositionally homogeneous InAlN layers and HEMTs with mobility as high as 1,750 cm2/V∙sec.
06:57
Electrophoretic Mobility Shift Assay (EMSA)
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2023
The electrophoretic mobility shift assay (EMSA) is a biochemical procedure used to elucidate binding between proteins and nucleic acids. In this assay a radiolabeled nucleic acid and test protein are mixed. Binding is determined via gel electrophoresis which separates components based on mass, charge, and conformation. This video shows the concepts of EMSA and a general procedure, including gel and protein preparation, binding, electrophoresis, and detection. Applications covered in this video...
01:26
Mobile Marketing
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2024
As consumers increasingly rely on smartphones and other mobile devices for browsing, communication, and shopping, mobile marketing has become essential in today's digital world. Brands must adjust their strategies to engage users where they spend most of their time, which is on mobile screens. Understanding mobile user behavior is crucial for successful mobile marketing. Mobile users typically interact with their devices briefly and frequently throughout the day. They prefer content that is...
08:40
Using a Cyclic Ion Mobility Spectrometer for Tandem Ion Mobility Experiments
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Cited by 2 •
2022
Ion mobility spectrometry (IMS) is an interesting complement to mass spectrometry for the characterization of biomolecules, notably because it is sensitive to isomerism. This protocol describes a tandem IMS (IMS/IMS) experiment, which allows the isolation of a molecule and the generation of the mobility profiles of its fragments.
01:24
Electron Carriers
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2019
Electron carriers can be thought of as electron shuttles. These compounds can easily accept electrons (i.e., be reduced) or lose them (i.e., be oxidized). They play an essential role in energy production because cellular respiration is contingent on the flow of electrons. Over the many stages of cellular respiration, glucose breaks down into carbon dioxide and water. Electron carriers pick up electrons lost by glucose in these reactions, temporarily storing and releasing them into the electron...
FAQs
Scattering interrupts electron motion by redirecting carriers as they encounter lattice vibrations, impurities, defects, or other charge carriers. These interruptions reduce the distance electrons travel in a consistent direction before their motion is disturbed. As scattering becomes stronger, carrier transport becomes less efficient, which can lower conductivity and limit the performance of electronic materials.
Temperature changes the intensity of lattice vibrations, one of the factors that can scatter electrons. When vibrations become stronger, electrons may experience more frequent disruptions to their motion, reducing mobility. Comparing mobility at different temperatures therefore helps researchers identify how strongly lattice-related scattering influences transport and can reveal information about a material’s electronic behavior.
Impurities and structural defects provide additional sources of scattering beyond the material’s regular lattice motion. Their presence can hinder carrier transport even when lattice conditions remain unchanged. Studying how mobility varies with material composition or defect concentration helps distinguish these contributions and supports efforts to control transport properties in metals, semiconductors, and other electronic materials.
Mobility changes provide clues about which scattering processes control carrier transport under particular conditions. Variations associated with temperature or material composition can show how electrons interact with the lattice, impurities, defects, or other carriers. These trends help connect measurable transport behavior with underlying electronic structure rather than treating conductivity as an isolated property.
A mobility study examines electron transport while changing a controlled factor such as temperature or material composition, then compares the resulting transport response. Measurements can be interpreted alongside the applied electric field and carrier drift behavior to evaluate how readily electrons respond. Consistent comparisons help identify conditions that improve transport or increase scattering.
Mobility influences how effectively charge carriers move through electronic materials, so it affects transport and device performance. In transistors and high-speed circuits, transport properties are relevant to rapid electronic operation; in sensors and solar cells, they help characterize carrier behavior. Measuring and controlling mobility therefore supports material selection and device design across several applications.