This paper presents the definition of different Service Levels for Electronic Brokerage Applications1. This document is structured in three parts. The first one gives an overview of concepts such as Electronic commerce, Brokerage, Multimedia applications and Quality of service, including the definition of Service levels for different Electronic brokerage applications. The second part presents t...

DLTS and associated electrical measurements were made on unintentionally doped CdTe crystals obtained from several vendors, on Cu-doped CdTe, and on Te-annealed CdTe. All of the crystals were p-type. Four majority carrier deep levels were observed in the temperature range from 100-300 K with activation energies relative to the valence band of0.2, 0.41, 0.45, and 0.65 eV. Two of these levels wer...

The role of interfaces and higher bands on the electronic structure of embedded semiconductor quantum dots (QDs) was investigated. The term in the multiband k p Hamiltonian that captures the effect of interface band mixing was derived starting from the microscopic theory. It was shown, analytically and numerically, that, with such a term included, the right symmetry of the QD system can be capt...

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The electronic structure of benzene on graphite (0001) is computed using the GW approximation for the electron self-energy. The benzene quasiparticle energy gap is predicted to be 7.2 eV on graphite, substantially reduced from its calculated gas-phase value of 10.5 eV. This decrease is caused by a change in electronic correlation energy, an effect completely absent from the corresponding Kohn-S...