Due to their appealing size-dependent properties, semiconductor and metallic nano-objects (nanocrystals, nanowires) have been predicted to act as technological boosters in various fields including nano-electronics, optoelectronics, photonics, magnetism, and photovoltaics. The capability to control size, shape, composition and doping of these nano-objects is crucial to finely tailor their properties. Nevertheless, the future implementation of these elemental building blocks in functional devices at nano-scale requires precise control of the organization of the nano-objects in terms of density and relative positioning within well organized structures. The capability to fabricate ordered arrays of nano-objects and to precisely organize the nanoobjects on appropriate substrates or inside various matrices is the key point to support the technological development of new device concepts with predictable characteristics based on these novel nano-materials.
This topical section in physica status solidi (a) comes up with representative contributions describing the main topics covered at Symposium H “Organized Nanostructures and Nano-objects: Fabrication, characterization and applications” during the 2012 Fall meeting of the European Materials Research Society (E-MRS). The four-day symposium was organized by the guest editors of the present issue in the framework of the international project NANOBLOCK (“NANO-device fabrication using Block copolymer based technology”) funded by the ERANET PLUS ‘NanoSci-E+’ consortium.
The following pages present a selection of 14 articles, with six invited papers, and provide a comprehensive representation out of more than 100 accepted abstracts. These manuscripts cover some of the scientific and technological aspects related to the synthesis of semiconductor or metallic nanodots and nanowires, with special emphasis on the organization of these nano-objects in well ordered structures, in view of their future integration in functional devices. Significant insights on advanced nano-structures and nano-device architectures at different stages of development are proposed, providing experimental results focusing on the capability to control the main parameters of the nano-object synthesis in relation with their tunable properties and functionalities. We believe this issue can attract the attention of a broad community of scientists and engineers coming from academia or industry and working on various aspects related to semiconductor and metallic nanostructures, from fundamental physics and materials science issues to the final application in functional devices.
We would like to thank all the contributors for their interesting papers, as well as all the reviewers for their competent expertise and the financial support to our workshop from FEI company and University of Barcelona.
Dr. Michele Perego
Dr. Sylvie Schamm-Chardon
Prof. Paolo Pellegrino