General information

FP7 RAINBOW Training workshop  : Properties of semiconductor materials and devices: Structural, Spectroscopic, Electrical characterization
Organized within the project: FP7 RAINBOW ITN
Warsaw, 16-17 September 2009
Event associated to E-MRS Fall Meeting 2009


Since October 2009, RAINBOW is an initial Training Network gathering 13 partners in 8 European countries. It aims at training 19 Early stage researchers and 8 Experienced researchers throughout the 13 partner institutions.

The partners are located in the following countries: France, Germany, Spain, Italy, United-Kingdom, Switzerland, Poland and Finland.

The field of research is indium Nitride and its alloys. The RAINBOW academic and industrial consortium work is focused on 3 main work packages: growth, characterization and modelling of InN, InGaN alloys and heterostructures. In the RAINBOW academic and industrial consortium, the theoretical work encompasses modelling of the atomic structure and properties of the material from empirical potentials to ab initio techniques. Experiments provide correlated structural, electronic, optical and chemical information from the nano to the macroscopic scale. Our work will enable us to determine will determine the best conditions for the growth of highest quality InN and In rich (In,Ga,Al)N alloys by the main growth techniques (MOVPE, PAMBE, and HVPE). This will lead to ensure the production of reliable commercial devices such as solar cells and devices capable of operating in the Terahertz range.

The event aims at sharing knowledge on the subject and training young researchers. It will also enable the RAINBOW partners to state their progress through the project after the first year of collaborative work.

The event is focusing on:

• Experimental results on the structure and optical properties

• Growth mechanisms

• Structure of defects that form inside the layers

• Strategies to grow high quality layers

Workshop: Properties of semiconductor materials and devices: Structural, Spectroscopic, Electrical characterization

The event is directed towards the RAINBOW partners and young researchers but also open to the EMRS attendees.


RAINBOW Training Workshop

Investigation of the properties of nitride semiconductors

Wednesday 16th: Optical and electrical properties of nitride semiconductors

8:30 - 9:15 W1 Spectral properties of InN and related compounds from first principles   Prof F. Bechstedt, FSU Jena

9:45-10:30 W2 Sources of doping for InN bulk and surfaces Prof. C. Van de Walle, UCSB, Santa Barbara

11:30-12:00 W3 Interface, bulk and surface electronic properties of InN  Dr.  T. Veal, Univ. Warwick

14:00-14:45 W4 New twists in carrier recombination and hot carrier scattering in light emitting devices and field effect transistors based on III-V nitride semiconductors    Prof. H. Morkoc, VCU, Virginia

14:45-15:30 W5 Capacitance and surface voltage charge techniques     Dr. D. Cavalcoli, Univ. Bologna

15:50-16:35  W6 Optical properties of low-dimensional nitride semiconductors Dr. R. Butté, EPFL

16:35-17:20 W7 Optical properties of bulk-like nitride semiconductors Dr. R. Goldhahn TUIL Ilmenau

Thursday 17th:  Structural characterization by transmission electron microscopy

9:00-10:30 W8 Fundamental principles of Transmission electron microscopy   Prof. Pierre Stadelmann, EPFL Lausanne

11:00-12:30  Practicals: Simulation and quantitative information retrieval   P. Stadelmann, S. Kret IFPAN Warsaw, P. Ruterana CIMAP Caen

14:00-15:00 W9 The resolution in aberration corrected microscopy,   Prof. Angus J. Kirkland Oxford University

15:00-15:45 Practicals, Dr. Sarah Haigh, Prof. Angus Kirkland, Oxford University

16:00-17:00 W10 Focal and Tilt series reconstructions Prof. Angus J. Kirkland

17:15-18:00 Practicals, Dr. Sarah Haigh, Prof. Angus Kirkland, Oxford University


RAINBOW Initial Training Network

Professor Friedhelm Bechtedt, Friedrich-Schiller University, Jena, Germany

Tel: +49 3641 947150

Fax: + 49 3641 947152


Professor Anna Cavallini, Bologna University, Department of Physics, Italy

Tel: +390512095108

Fax: +390512095153


Professor Christopher Francis McConville, University of Warwick, Department of Physics, United-Kingdom

Tel: +44 24 76524236

Fax: +44 24 76524236


Doctor Pierre Ruterana, CIMAP, CNRS, France

Tel: +33 2 31 45 26 53

Fax: +33 2 31 45 26 60


The workshop is intended to all members of RAINBOW, especially the young researchers.

Registration is open to the EMRS attendees.

The number of attendees is limited to 50.

Online registration is necessary for the non-members of RAINBOW.

Please fill-in a registration form and send it to:

Claire Durand

RAINBOW project manager