凯发_Vincenzo Palermo

Speaker-Vincenzo Palermo

Vincenzo Palermo
National Research Council of Italy, Italy

Vincenzo Palermo is the leader of the research unit “Functional Organic Materials” of the National Research Council of Italy (CNR). He obtained his Ph.D. in 2003 at the University of Bologna. He previously worked at the University of Utrecht (the Netherlands) and at National Research Council (Canada).

He works on the research and production of new materials for optoelectronics and photovoltaics, using self-assembling molecules and graphene. He has been project leader of two large European research projects: GOSPEL (Graphene-Organic SuPramolEcular functionaL composites) and the International Training Network GENIUS (GraphenE-orgaNIc hybrid architectures for organic electronics: a mUltiSite training action). He is also one of the initial proposers of the GRAPHENE FLAGSHIP European initiative, and Leader of the Work Package related to nanocomposites of the flagship. He is author of more than 80 papers and several reviews on international journals (Advanced Materials, JACS, etc.), and has been referee for many ISI journals in the fields of supramolecular chemistry and materials science.

In parallel to his scientific activity, Vincenzo Palermo is involved in science dissemination and communication, giving seminars for high-school students and public audience on the influence of scientific research on human history. He has published an historical novel in 2008. One of its fiction stories has been selected for publication on Nature journal, in the “Futures” section.

In 2012 he has been awarded the Lecturer Award for Excellence of the Federation of European Materials Societies. In 2013 he has been awarded the Research Award of the Italian Society of Chemistry (SCI). This prize awarded to an emerging scientist by the SCI Division of Organic Chemistry, for brilliant results obtained in the past years

Title：Graphene-organic Composites for Electronics; Optical and Electronic Interactions in Vacuum, Liquids and Thin Solid Films

SymposiumPolymer

Starting Time

Ending Time

Abstract

Graphene exhibits exceptional mechanical, optical and electrical properties that are unfortunately accompanied by a) poor processability and b) poor tunability of its properties. The controlled interaction of graphene with tailor-made organic semiconductors (OS) can offer a solution to solve simultaneously these two problems. The use of well-chosen organic semiconducting molecules interacting with graphene, such as small polyaromatic dyes (fig. 1a,b) or polymers (fig.1 c,d) enables an optimal control over the molecular self-assembly process forming low-dimensional graphene-organic architectures. Moreover, OS allow to modulate numerous physical and chemical properties of graphene, including controlled electrical doping, ultimately making it possible to boost the performance of conventional organic electronic devices. Significantly, the interaction of organic molecules with graphene is strong not only at short distance but it is relevant also on longer distances, up to 30 nm. In this talk, we will review some of the most enlightening results in the field, giving an overview of the interaction between graphene and organic molecules, starting from the simplest systems at molecular scale, single molecules on single layer graphene in UHV, up to mesoscopic, more complex systems i.e., thick interpenetrated layers of graphene-organic composites embedded in working electronic or photovoltaic devices.

References:

[1] Dielectric nanosheets made by liquid-phase exfoliation in water and their use in graphene-based electronics. 2D Materials, (2014) 1, 011012.

[2] Synergic Exfoliation of Graphene with Organic Molecules and Inorganic Ions for the Electrochemical Production of Flexible Electrodes. ChemPlusChem, (2014) 79, 439.

[3] Graphene-organic composites for electronics: optical and electronic interactions in vacuum, liquids and thin solid films. Journal of Materials Chemistry C, (2014) DOI: 10.1039/C3TC32153C.

[4] Fragmentation and exfoliation of 2-dimensional materials: a statistical approach. Nanoscale, (2014) 6, 5926.

[5] The Exfoliation of Graphene in Liquids by Electrochemical, Chemical, and Sonication-Assisted Techniques: A Nanoscale Study (Adv. Funct. Mater. 37/2013). Advanced Functional Materials, (2013) 23, 4756.

[6] Nanoscale insight into the exfoliation mechanism of graphene with organic dyes: effect of charge, dipole and molecular structure. Nanoscale, (2013) 5, 4205.

[7] Not a molecule, not a polymer, not a substrate ... the many faces of graphene as a chemical platform. Chemical Communications, Emerging investigators special issue, (2013) 49, 2848.

[8] Graphene-organic hybrids as processable, tunable platforms for pH-dependent photoemission, obtained by a new modular approach. Journal of Materials Chemistry, (2012) 22, 18237.

[9] Graphene Transistors via in Situ Voltage-Induced Reduction of Graphene-Oxide under Ambient Conditions. Journal of the American Chemical Society, (2011) 133, 14320.

[10] Charge transport in graphene-polythiophene blends as studied by Kelvin Probe Force Microscopy and transistor characterization. Journal of Materials Chemistry, (2011) 21, 2924.

[11] Local Current Mapping and Patterning of Reduced Graphene Oxide. Journal of the American Chemical Society, (2010) 132, 14130.

[12] High-Contrast Visualization of Graphene Oxide on Dye-Sensitized Glass, Quartz, and Silicon by Fluorescence Quenching. Journal of the American Chemical Society, (2009) 131, 15576.