A theory of luminescence that takes into account fluctuations in the band-edge potentials due to nonuniform distribution of impurities is used to calculate temperature dependences of the positions and half-widths of peaks in these spectra. Good agreement is obtained between experimental and calculated ...
A theory of luminescence that takes into account fluctuations in the band-edge potentials due to nonuniform distribution of impurities is used to calculate temperature dependences of the positions and half-widths of peaks in these spectra. Good agreement is obtained between experimental and calculated ...
In a recent work [Phys. Rev. B 37, 8519 (1988)], we have shown how it is possible to derive a ‘‘universal analytical expression’’ for the dependence of tight-binding parameters upon distance that provides, for seven III-V compounds, deformation potentials in reasonable agreement with av...
Tunneling Josephson effect Bose-Einstein condensates in periodic potentials solitons vortices and topological excitationsStochastic analysis methodsWe present a joint theoretical and experimental study of the dynamical instability of a Bose鈥擡instein condensate at the band edge of a one-dimensional optical ...
(HAXPES). Hard x-rays generate photoelectrons with larger attenuation lengths and, accordingly, capture band-edge profiles over longer length scales. This approach relies on the fact that core orbitals are highly spatially localized and their ionization potentials (binding energies) track with depth-...
In a crystalline structure, the motion of electrons and holes is affected by the periodic potentials around the atoms. An expression analogous to eqn [5] can be applied to carriers in a solid, accounting for the crystalline structure with an effective mass term [6]. This approximation is only...
Cuprous oxide (Cu2O) thin films were prepared by using electrodeposition technique at different applied potentials (−0.1,... Xishun,Jiang,Miao,... - 《Nanoscale Research Letters》 被引量: 19发表: 2014年 Photoluminescence measurements in the phase transition region of Zn1−xCdxS films Thin ...
Bond-Order Potentials: Theory and Implementation. Phys. Rev. B. 53, 12694 (1996). 50. Das, T., Markiewicz, R. S. & Bansil, A. Emergence of non-Fermi-liquid behavior due to Fermi surface reconstruction in the underdoped cuprate superconductors. Phys. Rev, B 81, 174504 (2010). 51....
terial parameters, with the deformation potentials and Luttinger parameters being the most important [8]. In addition, the material parameters are known with vary- ing degrees of accuracy. For example, lattice and elastic constants are known to four or more significant figures, while Luttinge...
Furthermore, after indium element solid solution, the conduction band and valence band potentials of BiOCl shift towards negative and positive, respectively, enhancing the redox capacity of the photogenerated electrons and holes. Thus, BiInOCl shows excellent photocatalytic performances for reduction of ...