physica status solidi (b)

Cover image for Vol. 254 Issue 1

Editor: Stefan Hildebrandt (Editor-in-Chief), Sabine Bahrs (Deputy Editor)

Online ISSN: 1521-3951

Associated Title(s): physica status solidi (a), physica status solidi (c), physica status solidi (RRL) - Rapid Research Letters

Simulation of Semiconductor Nanostructures

233_01/2002The authors of the paper by Aaron Puzder et al. [1], highlighted as Editor's Choice in the present issue of phys. stat. sol. (b), are members of the Quantum Simulations Group at Lawrence Livermore National Laboratory where they employ quantum Monte Carlo and density functional calculations on semiconductor nanoclusters.The present investigations report significant changes in the electronic structure of hydrogenated silicon nanoclusters which are passivated by impurities such as oxygen. These findings may have important consequences for the interpretation of experimental data such as visible photoluminescence of porous and nanoscale Si. In the picture shown on the cover, the green and yellow isosurfaces contrast the wavefunction squared of the highest occupied molecular orbital (HOMO) in 1 nm silicon quantum dots with perfect hydrogen termination (Si35H36, yellow) and terminated with six, double bonded oxygen atoms (Si35H34O6, green).The paper is a presentation from the 3rd Motorola Workshop on Computational Materials and Electronics. This issue comprises a selection of papers from this workshop covering a broad range of topics in the areas of materials, molecular electronics, process theory, devices and nanoelectronics.