Luminescent silicon nanostructures synthesized by laser ablation

✍ Scribed by Riabinina, D. ;Durand, C. ;Rosei, F. ;Chaker, M.

• Publisher: John Wiley and Sons
• Year: 2007
• Tongue: English
• Weight: 797 KB
• Volume: 204
• Category: Article
• ISSN: 0031-8965
• DOI: 10.1002/pssa.200675361

✦ Synopsis

Abstract

This paper describes the properties of silicon nanostructures synthesized by laser ablation. This is an extremely flexible technique allowing the fabrication of different kinds of nanostructures including porous films and Si nanocrystals embedded in Si oxide. Quantum confinement effects in nanostructures of indirect bandgap semiconductors have attracted great interest due to their new optical properties. This improvement of the efficiency of silicon in emitting light is a first step towards the integration of silicon in optoelectronics. Many groups are working on developing fabrication methods of Si nanocrystals and on the optimization of their luminescence properties. In particular, we describe in detail the mechanisms that govern nucleation and growth of these photoluminescent nanostructures. (© 2007 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)