Title: Bistable molecules development and Si surface grafting: two chemical tools used for the fabrication of hybrid molecule/Si CMOS component

Authors: Florence Duclairoir, Lionel Dubois, Adrian Calborean, Alexandra Fateeva, Benoit Fleury, Anbarasan Kalaiselvan, Jean-Claude Marchon, Pascale Maldivi, Martial Billon, Gerard Bidan, Barbara de Salvo, Guillaume Delapierre, Julien Buckley, Kai Huang, Regis Barattin, Tiziana Pro

Addresses: Institute for Nanoscience and Cryogenics, Inorganic and Biological Chemistry, UMR_E 3 CEA UJF and FRE CNRS 3200, French Atomic Energy Commission – Grenoble, 17 rue des martyrs, F-38 054 Grenoble Cedex 09, France. ' Institute for Nanoscience and Cryogenics, Inorganic and Biological Chemistry, UMR_E 3 CEA UJF and FRE CNRS 3200, French Atomic Energy Commission – Grenoble, 17 rue des martyrs, F-38 054 Grenoble Cedex 09, France. ' Institute for Nanoscience and Cryogenics, Inorganic and Biological Chemistry, UMR_E 3 CEA UJF and FRE CNRS 3200, French Atomic Energy Commission – Grenoble, 17 rue des martyrs, F-38 054 Grenoble Cedex 09, France. ' Institute for Nanoscience and Cryogenics, Inorganic and Biological Chemistry, UMR_E 3 CEA UJF and FRE CNRS 3200, French Atomic Energy Commission – Grenoble, 17 rue des martyrs, F-38 054 Grenoble Cedex 09, France. ' Institute for Nanoscience and Cryogenics, Inorganic and Biological Chemistry, UMR_E 3 CEA UJF and FRE CNRS 3200, French Atomic Energy Commission – Grenoble, 17 rue des martyrs, F-38 054 Grenoble Cedex 09, France. ' Department of Chemistry, Anna University Tiruchirappalli, Thirukkuvalai Campus, Thirukkuvalai 610 204, Tamil Nadu, India. ' Institute for Nanoscience and Cryogenics, Inorganic and Biological Chemistry, UMR_E 3 CEA UJF and FRE CNRS 3200, French Atomic Energy Commission – Grenoble, 17 rue des martyrs, F-38 054 Grenoble Cedex 09, France. ' Institute for Nanoscience and Cryogenics, Inorganic and Biological Chemistry, UMR_E 3 CEA UJF and FRE CNRS 3200, French Atomic Energy Commission – Grenoble, 17 rue des martyrs, F-38 054 Grenoble Cedex 09, France. ' Institute for Nanoscience and Cryogenics, Structure and Properties of Molecular Architectures, UMR CNRS 5819, French Atomic Energy Commission – Grenoble, 17 rue des martyrs, F-38 054 Grenoble Cedex 09, France. ' Institute for Nanoscience and Cryogenics, Central Division, French Atomic Energy Commission – Grenoble, 17 rue des martyrs, F-38 054 Grenoble Cedex 09, France. ' Electronics and Information Technology Laboratory, French Atomic Energy Commission (CEA-LETI), MINATEC, 17 rue des martyrs, F-38 054 Grenoble Cedex 09, France. ' Electronics and Information Technology Laboratory, French Atomic Energy Commission (CEA-LETI), MINATEC, 17 rue des martyrs, F-38 054 Grenoble Cedex 09, France. ' Electronics and Information Technology Laboratory, French Atomic Energy Commission (CEA-LETI), MINATEC, 17 rue des martyrs, F-38 054 Grenoble Cedex 09, France. ' Electronics and Information Technology Laboratory, French Atomic Energy Commission (CEA-LETI), MINATEC, 17 rue des martyrs, F-38 054 Grenoble Cedex 09, France. ' Electronics and Information Technology Laboratory, French Atomic Energy Commission (CEA-LETI), MINATEC, 17 rue des martyrs, F-38 054 Grenoble Cedex 09, France. ' Electronics and Information Technology Laboratory, French Atomic Energy Commission (CEA-LETI), MINATEC, 17 rue des martyrs, F-38 054 Grenoble Cedex 09, France

Abstract: For the past ten years, there has been considerable interest dedicated to the miniaturisation of CMOS devices. The research axes followed to obtain scalable devices are numerous as the possibilities offered by both technological (top-down) and new (bottom-up) approaches are studied. Concerning the latter approach molecular electronics is a growing field of interest. Notably, the fabrication of hybrid molecule/Si structures paves the way for development of devices with electrical performances that can be tuned thanks to the molecular properties initially targeted. Here we present the recent results obtained in the two approaches we follow in order to develop new hybrid molecule/Si memory elements. The first axis focuses on the development of specific molecules that could allow a fine tuning of the memory retention characteristic. The second axis deals with the integration of redox molecules inside capacitive cells and the study of their electrical properties. The capacitance of such components clearly shows that an effect of charge transfer is observed only when redox active molecules (porphyrins) are grafted on Si.

Keywords: molecular memories; hybrid molecule-silicon CMOS components; functionalised porphyrins; electrochemistry; silicon surface grafting; covalent grafting; bistable molecules; nanotechnology.

DOI: 10.1504/IJNT.2010.031741

International Journal of Nanotechnology, 2010 Vol.7 No.4/5/6/7/8, pp.719 - 737

Published online: 21 Feb 2010 *

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