Electronic structure of phosphorus and arsenic d-doped germanium
MetadataShow full item record
Density functional theory in the LDA+U approximation is used to calculate the electronic structure ofgermanium d doped with phosphorus and arsenic. We characterize the principal band minima of the twodimensional electron gas created by d doping and their dependence on the dopant concentration. Populated first at low concentrations is a set of band minima at the perpendicular projection of the bulk conduction band minima at L into the (kx ,ky ) plane. At higher concentrations, band minima at and become involved. Valley splittings and effective masses are computed using an explicit-atom approach, taking into account the effects of disorder in the arrangement of dopant atoms in the d plane.
Copyright © 2013 by the American Physical Society
Showing items related by title, author, creator and subject.
Nitrogen-doped TiO2 microspheres with hierarchical micro/nanostructures and rich dual-phase junctions for enhanced photocatalytic activityWang, W.; Liu, Y.; Qu, J.; Chen, Y.; Shao, Zongping (2016)We successfully synthesized microspherical nitrogen-doped TiO2 with hierarchical nano/microstructures, rich anatase TiO2-TiO2(B) phase junctions and a reduced band gap by a facile solvothermal process, followed by a ...
Luminescence of Ca<inf>2</inf>LiSiO<inf>4</inf>F: Ce<sup>3+</sup>, Tb <sup>3+</sup> phosphorsHuang, L.; Guo, M.; Zhao, S.; Deng, D.; Wang, H.; Hua, Y.; Jia, Guohua; Xu, S. (2013)Ce3+, Tb3+ singly-doped and co-doped Ca 2LiSiO4F phosphors have been synthesized through conventional solid-state reaction. Their luminescence properties are studied. Under UV excitation, Ce3+ singly-doped Ca2LiSiO 4F ...
A comparative study on crystallization behavior, phase stability, and binding energy in pure and Cr-doped TiO2 nanotubesLow, It Meng; Albetran, Hani; Prida, V.; Vega, V.; Manurung, P.; Ionescu, M. (2013)Use of nanostructured TiO2 for photocatalysis is a cost-effective and sustainable technology. However, to make this an attractive viable technology will require the design of TiO2 photocatalyst capable of harnessing the ...