electrons and holes
Broadband cooling spectra of hot electrons and holes in PbSe quantum dots
... that holes cool faster than electrons, in agreement with our earlier ...for electrons and two for holes) near the band edge before the onset of the quasi- ...of electrons and ...
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Theory of Excitons and Excitonic Quasimolecules Formed from Spatially Separated Electrons and Holes in Quasi - Zero - Dimensional Nanosystems
... separated electrons and holes) in a nanosystem that consists of ZnSe QDs synthesized in a borosilicate glass matrix is developed within the context of the modified effective mass ...
12
Optical Functions, Band Structure and Effective Masses of Electrons and Holes in InGaTe2
... Abstract This paper has presented results of calculations of optical functions for e||c and e⊥c polarizations in 0 - 12 eV energy interval, band structure and effective masses of electro[r] ...
8
Vol 4, No 4-6 (2015)
... separated electrons and holes, iv) activity upon irradiation with light of possibly low energies, preferably with visible light, v) high stability and photo stability, vi) possible low environmental impact, ...
8
Theory of Conductivity in Semiconducting Single Wall Carbon Nanotubes
... Let us consider the long SWNT rolled with a graphene sheet. The charge may be transported by the channeling “electrons” and “holes” in the graphene wall. But the “holes” within the wall can also ...
6
Strongly temperature dependent recombination kinetics of a negatively charged exciton in asymmetric quantum dots at 1 55 µm
... For a thermal escape of carriers34 from a large QDash one may expect energies of ∼300 meV and ∼50 meV for groundstate electrons and holes, respectively.31 The observed lower activation e[r] ...
5
Hydrodynamic theory of partially degenerate electron-hole fluids in semiconductors
... In the opposite limit, for electrostatic waves with wave speeds much higher than the average particle speed, the electrons and holes do not have the time to stream and reach an equilibrium. The distribution ...
19
Physics and Materials Chemistry
... between electrons and holes is very important in this ...the electrons and holes (strong coupling) causing an increase of the excitons recombination velocity and consequently a reduction of ...
5
Activation of Molecular Hydrogen by Electron Impact Velocity Distribution of Electrons Issuing from Small Holes Activation of Gases by Electron Impact
... Electrons of 11.4 volts' energy can activate hydrogen molecules, for we find that there is a definite pressure decrease when the accelerating.. voltage applied to our tube has this value[r] ...
29
Spin and valley control of free carriers in single layer WS2
... of holes in this band compared to the lower VB, as seen in ...free electrons and holes, which are situated at the band edges where the phase space for intra-band decay processes is small, thereby ...
5
Voltage and light controlled spin properties of a two dimensional hole gas in p type GaAs/AlAs resonant tunneling diodes
... an energy shift of the e-2DHG transition to smaller energies. Furthermore, the larger electric field gives rise to an increasing spatial-separation between electrons and holes. Therefore, a decreasing ...
13
Stability of trions in coupled quantum wells modeled by two dimensional bilayers
... two electrons in one layer and a hole in the opposite layer, or vice versa) in coupled quantum ...of electrons and holes leads to a local imbalance in the carrier ...
7
Optical loss suppression in long-wavelength semiconductor lasers at elevated temperatures by strong doping of n-waveguides
... free holes, compared to the~1 μm ...equilibrium holes due to doping and is thus inherently lossy. The remaining holes, the source of IVBA, are then the nonequilibrium ...(both electrons and ...
17
Fast, multicolor photodetection with graphene contacted p GaSe/n InSe van der Waals heterostructures
... The response of a photodetector is determined by a combination of several processes, including the excitation, recombination, and diffusion of carriers. Due to the built-in potential of the heterojunction and the type II ...
20
Strong Doping of the n-Optical Confinement Layer for Increasing Output Power of High- Power Pulsed Laser Diodes in the Eye Safe Wavelength Range
... (both electrons and holes) in the OCL, which has its origin in the carrier transport through the OCL and in the carrier generation by two-photon absorption and leads to optical and recombination losses as ...
10
nenergy20151.pdf
... of electrons and holes in the whole device under illumination, which is affected by the occupation of the available electronic states by photogenerated charge carriers, not only in the perovskite layer, but ...
6
Investigation of Semiconductor Quantum Dots for Waveguide Electroabsorption Modulator
... behavior. In fact, both theoretical studies and experimental results had confirmed that QDs exhibit a quadratic relation with the E-field [21, 22]. Therefore, similar to that reported in Fig. 3 (for sample D) of Ref. ...
5
The Nonideality Coefficient of Current Voltage Characteristics for Asymmetric p n Junctions in a Microwave Field
... of electrons and holes, as well as their temperature coefficient and diffusion length, the temperature of the phonons, the applied voltage, and the height of the potential ...
5
Lasing in Bose Fermi mixtures
... Light amplification by stimulated emission of radiation, well-known for revolutionising photonic science, has been realised primarily in fermionic systems including widely applied diode lasers. The prerequisite for ...
7
Platinum Group Metals and their Oxides in Semiconductor Photosensitisation2-12
... Despite this, much research has been carried out on titania- based systems for water reduction, oxidation and splitting, as the photogenerated electrons and holes on ti[r] ...
11