physica status solidi (a)

Cover image for Vol. 214 Issue 4

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

Online ISSN: 1862-6319

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

Papers presented at the International Workshop on Nitride Semiconductors (IWN 2002)

194_02/2002This issue contains papers presented at the International Workshop on Nitride Semiconductors (IWN 2002) which was held in Aachen, Germany, July 22–25, 2002. The objective of this workshop was to provide a forum for active nitride researchers to gather and promote scientific and technical discussions. It covered all aspects of nitride semiconductor systems such as AlInGaN, AlGaNAsP, and other materials containing nitrogen as one of the major constituents. Application-related topics including light emitting and laser diodes, transistors and detectors, growth, bulk and epitaxial lateral overgrowth, and contacts are covered in this issue. Please note that further papers from IWN 2002 on AlGaN and InGaN heterostructures, surfaces, polarisation and piezoelectric effects, InN and small band-gap materials, transport, impurties, defects, doping, electrical, optical, and structural properties, lattice dynamics and phonons are published in phys. stat. sol. (a) 234, No. 3 (2002). The full Proceedings of this conference will be published in the first issue of our new and third journal series physica status solidi (c) – conferences, Vol. 0, No. 1 (2002).The cover picture is taken from paper [1] and shows a 40 (20 + 20) monolithic blue LED series array under negative dc bias with one group of 20 bright LEDs whereas the other group turns on under positive bias, leading to alternate illumination for ac operation.