Browsing by Keywords "Charge carriers"
Now showing items 1-8 of 8
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Collective modes in a quasi-one-dimensional, two-component electron liquid
(Pergamon Press, 1994)Under favorable conditions, a new collective mode besides the usual plasmons may exist in degenerate electron-hole liquids. We calculate the dispersion and damping of this new mode (called the acoustic plasmon mode) in a ... -
Investigation of charge carriers in doped thiophene oligomers through theoretical modeling of their UV/Vis spectra
(2008)The nature of the charge carriers in conducting organic polymers (COPs) is a long standing problem. Polythiophene is one of the prototypes of COPs and intensively studied. Because doping leads to changes in UV/vis spectra ... -
Low-temperature photoluminescence study of GaS0.5Se0.5 layered crystals
(Elsevier Science, 2001)Photoluminescence (PL) spectra of GaS0.5Se0.5 layered single crystals have been studied in the wavelength range of 565-860 nm and in the temperature range of 15-170 K. Two PL bands centered at 585 nm (2.120 eV) and 640 nm ... -
Magnetic-field dependence of low-temperature mobility in quasi-one-dimensional electron systems
(Institute of Physics Publishing Ltd., 1994)We study the mobility of a quasi-one-dimensional (Q1D) electron system in the presence of an axial magnetic field at low temperatures. We consider the mobility limits for remote-impurity scattering, homogeneous-background ... -
Nature of charge carriers in long doped oligothiophenes: the effect of counterions
(2008)A series of oligothiophene dications doped with Cl3 - ions were studied using density functional theory (DFT) at the B3LYP/6-31G(d) level. The balance between the bipolaron and polaron pair states was addressed by studying ... -
Raman studies of doped polycrystalline silicon from laser-annealed, doped a-Si:H
(Pergamon Press, 1994)We have used Raman scattering to follow the progress of multiple-pulse (sub-melt-threshold) laser annealing in doped hydrogenated amorphous silicon films (a-Si:H) on glass. In phosphorous-doped a-Si:H the Raman signal shows ... -
Short-range correlations in coupled quantum-wire systems
(TÜBİTAK, 2002)We study the contact values of the inter-wire pair-correlation function in electron-electron and electron-hole double-wire systems. For this purpose the ladder approximation as generalized to multicomponent systems is used. ... -
Strongly Scale-Dependent Charge Transport From Interconnections of Silicon Quantum Dots and Nanowires
(Cambridge University Press, 2017)We present the first characterization of strongly scale-dependent charge transport of a unique, hierarchical complex topology: an interconnected random network of silicon quantum dots (QDs) and nanowires. We show that this ...
