The device and method for performing an optical Hall test provide means foron-destructive measurement of free carrier concentration or effective mass in semiconductor materials using Faraday rotation spectra. A beam emitted by a Fourier transform infrared (FTIR) spectrometer is transmitted through the ...
This arises in effective-mass theory for all metal-semiconductor interfaces. We carried out full numerical calculations of the interface resistivity and describe approximations which lead to explicit formulae for the current flow, allowing one to see the dependence of the resistivity on doping, ...
JOACHIM PIPREK, in Semiconductor Optoelectronic Devices, 2003 2.1.2 Effective Mass of Electrons and Holes The properties of semiconductors are mainly determined by the behavior of electrons near the smallest band gap, where the relationship En () is almost parabolic so that electrons can be treated...
Band sharpening is one of the band structure modification methods which enhances the mobility of charge carriers by reducing the carrier's effective mass [20]. This reduces carrier effective mass which promotes carrier mobility, resulting in high electrical conductivity. So, to obtain good electrical...
However, the application of this catalyst is limited, because that the phenyl group in the reaction substrates can be also catalytic hydrogenated simultaneously. Ru/C can be used as the catalyst for the aqueous-phase catalytic hydrogenation of amino acids to amino alcohols, but the drawbacks of ...
mass of the atoms in the material, the speed of sound in the material, and the Debye temperature, which is a measure of the thermal excitation of the material lattice vibrations. Although the Slack formula depends on the empirical parameter A (see Eq.16), it was chosen as a reference ...
Modern physics is frame-invariant in this way: the Earth’s mass objectively exerts gravitational attraction on us regardless of how we choose to interpret it. Something like economic theory, on the other hand, is not frame-invariant: we must interpret how to apply terms such as “GDP” or...
[66]. In addition, low-cost mass production, low efficiency, and poor light-harvesting properties remain a challenge for scientists. The excellent electrical properties, with no toxicity, are leading 2D nanomaterials to improve the efficiency of 2D nanomaterials for solar energy harvesting as a ...
Semiconductor Quantum Science and Technology Pei-Cheng Ku, ... Chu-Hsiang Teng, in Semiconductors and Semimetals, 2020 2.2.3 Effective quantum dot dimension The strain-induce lateral confinement potential can enable the formation of quantum dots with an effective dimension much smaller than the physic...
allows using less than 80% of the starting perovskite material and toxic solvents to fabricate lab-scale devices with similar high performance, which inspired us to validate our strategy on large-scale module fabrication using industrial spin-coating approaches commonly available in a semiconductor fab...