Improving the Performance of Organic Thin-Film Transistors by Ion Doping of Ethylene-Glycol-Based Self-Assembled Monolayer Hybrid Dielectrics

Hanno Dietrich, Simon Scheiner, Lui Portilla, Dirk Zahn, Marcus Halik Abstract Tuning the electrostatics of ethylene-glycol-based self-assembled monolayers (SAMs) by doping with ions is shown. Molecular dynamics simulations unravel binding mechanisms and predict dipole strengths of the doped layers. Additionally, by applying such layers as dielectrics in organic thin-film transistors, the incorporated ions are proven […]

Functionalization of silicon oxide using supercritical fluid depositionof 3,4-epoxybutyltrimethoxysilane for the immobilization of amino-modified oligonucleotide

Jordi Rull, Guillaume Nonglaton, Guillaume Costa, Caroline Fontelaye, Caroline Marchi-Delapierre, Stéphane Ménage, Gilles Marchand Abstract The functionalization of silicon oxide based substrates using silanes is generally performed through liquid phase methodologies. These processes involve a huge quantity of potentially toxic solvents and present some important disadvantages for the functionalization of microdevices or porous materials, for […]

Green Processing of Metal Oxide Core-Shell Nanoparticles as Low-Temperature Dielectrics in Organic Thin-Film Transistors

Luis Portilla, Sebastian H. Etschel, Rick R. Tykwinski, and Marcus Halik Abstract TiO2, Fe3O4, AlOx, ITO (indium tin oxide), and CeO2 nanoparticles are tailored to exhibit excellent dispersability in deionized water and alcohols. The latter provides an ecofriendly solution for processing metal oxide nanoparticles at a neutral pH. Water-processed dielectrics from the metal oxide nanoparticles […]

Thermal Conductance across Phosphonic Acid Molecules and Interfaces: Ballistic versus Diffusive Vibrational Transport in Molecular Monolayers

John T. Gaskins, Anuradha Bulusu, Anthony J. Giodano, John C. Duta, Samuel Graham, and Patrick E. Hopkins Abstract The influence of planar organic linkers on thermal boundary conductance across hybrid interfaces has focused on the organic/inorganic interaction energy rather than on vibrational mechanisms in the molecule. As a result, research into interfacial transport at planar […]

Region-Selective Deposition of Core-Shell Nanoparticles for 3D Hierarchical Assemblies by the Huisgen 1,3-Dipolar Cycloaddition

Sebastian H. Etschel, Luis Portilla, Johannes Kirschner, Martin Drost, Fan Tu, Priv.-Doz. Dr Hbertus Marbach, Prof. Dr. Rik R. Tykwinski, Prof. Dr. Marcus Halik Abstract Like a NP-needle in an azide-stack: Metal oxide nanoparticles functionalized with alkyne- and azide-bearing phosphonic acids were assembled in defined stacks with precise control over region-selectivity and layer composition by […]

Photoinduced self-assembly of carboxylic acid-terminated lamellar silsesquioxane: highly functional films for attaching and patterning amino-based ligands

Lingli Ni, Abraham Chemtob, Céline Croutxé-Barghorn, Céline Dietlin, Jocelyne Brendlé, Séverinne Rigolet, Loïc Vidal, Alain Dieterlen, Elie Maalouf and Olivier Haeberlé Abstract Tuning the electrostatics of ethylene-glycol-based self-assembled monolayers (SAMs) by doping with ions is shown. Molecular dynamics simulations unravel binding mechanisms and predict dipole strengths of the doped layers. Additionally, by applying such layers […]

NMR and EPR Characterization of Functionalized Nanodiamonds

Charlène Presti, Aany S. Lilly Thankamony, Johan G. Aloauzun, P. Hubert Mutin, Diego Carnevale, Cédric Lion, Hervé Vezin, Danielle Laurencin, and Olivier Lafon Abstract We investigated the potential of solid-state NMR using magic angle spinning (MAS) with and without dynamic nuclear polarization (DNP) and electron paramagnetic resonance (EPR) for the characterization of functionalized nanodiamonds (NDs). […]

Multifunctional magnetic nanoparticles for enhanced intracellular drug transport

C. Tudisco, M. T. Cambria, F. Sinatra, F. Bertani, A. Alba, A. E. Giuffrida, S. Saccone, E. Fantechi, C. Innocenti, C. Sangregorio, E. Dalcanale and G. G. Condorelli Abstract In this paper we report the synthesis and characterization of biocompatible multi-functional magnetic nanoparticles (MNPs) able to enhance the intracellular transport of N-methylated drugs. The Fe3O4 […]

The Purchasable Chemical Space: A Detailed Picture

Xavier Lucas, Björn A. Grüning, Stefan Bleher, and Stefan Günther Abstract The screening of a reduced yet diverse and synthesizable region of the chemical space is a critical step in drug discovery. The ZINC database is nowadays routinely used to freely access and screen millions of commercially available compounds. We collected ∼125 million compounds from […]