Related Experiment Video
Updated: Jul 10, 2025

11:45
Experimental Methods for Trapping Ions Using Microfabricated Surface Ion Traps
Published on: August 17, 2017
14.5K
Electron traps and energy storage: modeling a bright path to the future
1Department of Chemistry and Physics, Center of Agrarian Sciences, Federal University of Paraiba, Areia, PB 58397-000, Brazil.
Summary
This study uses time-dependent density functional theory to explore electron and hole traps in doped materials. The findings enhance understanding of charge carrier behavior in solid-state chemistry.
Area of Science:
- Solid-state chemistry
- Computational materials science
- Quantum chemistry
Background:
- Understanding charge carrier dynamics, specifically electron and hole traps, is crucial for developing advanced doped materials.
- Doped materials are essential in various electronic and optoelectronic applications, necessitating detailed characterization of defect states.
Purpose of the Study:
- To investigate the nature and behavior of electron and hole traps in doped materials.
- To elucidate the mechanisms governing charge carrier trapping using advanced computational methods.
Main Methods:
- Employment of time-dependent density functional theory (TD-DFT) for solid-state calculations.
- Simulation of electronic structure and dynamics in doped crystalline materials.
Main Results:
- Detailed characterization of energy levels associated with electron and hole traps.
- Identification of specific atomic or electronic configurations responsible for trapping phenomena.
- Insights into the stability and dynamics of trapped charge carriers.
Conclusions:
- The study provides a comprehensive understanding of electron/hole traps in doped materials.
- The computational approach offers a predictive tool for designing materials with tailored electronic properties.
- This research advances the field of solid-state chemistry by clarifying charge trapping mechanisms.
Related Concept Videos
Transmission Electron Microscopy
5.5K
In 1931, physicist Ernst Ruska—building on the idea that magnetic fields can direct an electron beam just as lenses can direct a beam of light in an optical microscope—developed the first prototype of the electron microscope. This development led to the development of the field of electron microscopy. In the transmission electron microscope (TEM), electrons are produced by a hot tungsten element and accelerated by a potential difference in an electron gun, which gives them up to 400...
5.5K
The Bohr Model
54.3K
Following the work of Ernest Rutherford and his colleagues in the early twentieth century, the picture of atoms consisting of tiny dense nuclei surrounded by lighter and even tinier electrons continually moving about the nucleus was well established. This picture was called the planetary model since it pictured the atom as a miniature “solar system” with the electrons orbiting the nucleus like planets orbiting the sun. The simplest atom is hydrogen, consisting of a single proton as...
54.3K
Electron Orbital Model
67.8K
Orbitals are the areas outside of the atomic nucleus where electrons are most likely to reside. They are characterized by different energy levels, shapes, and three-dimensional orientations. The location of electrons is described most generally by a shell or principal energy level, then by a subshell within each shell, and finally, by individual orbitals found within the subshells.
The first shell is closest to the nucleus, and it has only one subshell with a single spherical orbital called the...
The first shell is closest to the nucleus, and it has only one subshell with a single spherical orbital called the...
67.8K
The Quantum-Mechanical Model of an Atom
42.4K
Shortly after de Broglie published his ideas that the electron in a hydrogen atom could be better thought of as being a circular standing wave instead of a particle moving in quantized circular orbits, Erwin Schrödinger extended de Broglie’s work by deriving what is now known as the Schrödinger equation. When Schrödinger applied his equation to hydrogen-like atoms, he was able to reproduce Bohr’s expression for the energy and, thus, the Rydberg formula governing hydrogen spectra.
42.4K
Electron Behavior
8.1K
Electrons are negatively charged subatomic particles attracted to and orbit around the positively-charged nucleus of an atom. They reside in spaces associated with energy levels called shells and are further organized into subshells and orbitals within each shell.
Electrons Orbit the Nucleus
Electrons are found in specific locations outside of the nucleus. The shell in which an electron resides indicates the general energy level of the electron: those closer to the nucleus have less energy,...
Electrons Orbit the Nucleus
Electrons are found in specific locations outside of the nucleus. The shell in which an electron resides indicates the general energy level of the electron: those closer to the nucleus have less energy,...
8.1K
Mass Analyzers: Common Types
617
The quadrupole mass analyzer consists of four cylindrical metal rods arranged in a diamond carrying a DC voltage and a radio-frequency AC voltage. The motion of ions through the quadrupole depends on the field strength, causing only ions of a certain m/z to resonate successfully and strike the detector at a given field strength. Though the transmission rate for these analyzers is high, the exact elemental composition of the sample is not determined because of low resolution; however, they are...
617

