Review
Chemistry, Multidisciplinary
Limin Wang, Ulrich S. Schubert, Stephanie Hoeppener
Summary: Surface modification using self-assembled monolayers has seen significant advancement in the past decade, with the introduction of new chemical reactions such as nucleophilic substitution, click chemistry, supramolecular modification, photochemical reaction, and others, enhancing the properties of solid substrates like silicon and glass.
CHEMICAL SOCIETY REVIEWS
(2021)
Article
Chemistry, Multidisciplinary
Christopher A. Petroff, Giuseppe Cassone, Jiri Sponer, Geoffrey R. Hutchison
Summary: This study presents novel piezoelectric force and touch sensors based on self-assembled monolayers of oligopeptides, which show large piezoelectric voltage response and are easily manufactured. Despite modest piezoelectric charge constants, the devices exhibit immense piezoelectric voltage constants. Additionally, a flexible device prototype with high open-circuit voltages is demonstrated, with potential for further improvements in voltage response through peptide selection and device construction.
ADVANCED MATERIALS
(2021)
Article
Chemistry, Physical
Melanie Golomb, Niklas B. B. Arndt, Christian Honnigfort, Billura Shakhayeva, Bart Jan Ravoo, Bjoern Braunschweig
Summary: The molecular-level structure and microscopic properties of self-assembled monolayers (SAMs) with fluorinated aryazopyrazole (CF3-AAP) silanes on SiO2 surfaces were studied. The swithching of CF3-AAP molecules from E state to Z state resulted in a change in surface wettability and contact angle. The molecular kinetics and wetting dynamics of the SAMs were analyzed through sum-frequency generation spectroscopy and dynamic contact angle measurements.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Nanoscience & Nanotechnology
Valentin Diez Cabanes, Colin Van Dyck, Silvio Osella, David Cornil, Jerome Cornil
Summary: This research introduces different concepts implemented in organic thin films and molecular junctions, as well as a new method of incorporating photochromic molecules into organic electronic devices. The discussion also highlights some issues that have been emphasized through theoretical modeling.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Multidisciplinary
Dennis Meier, Abhishek K. Adak, Peter Knecht, Joachim Reichert, Sourav Mondal, Nithin Suryadevara, Senthil Kumar Kuppusamy, Keitaro Eguchi, Matthias K. Muntwiler, Francesco Allegretti, Mario Ruben, Johannes V. Barth, Shobhana Narasimhan, Anthoula C. Papageorgiou
Summary: Tailored nano-spaces can control enantioselective adsorption and molecular motion through the spontaneous assembly of a dynamic system on Ag(111) using 2,6-bis(1H-pyrazol-1-yl)pyridine-4-carboxylic acid. The network cavity snugly hosts the chemically modified guest, bestows enantiomorphic adsorption, and allows selective rotational motions. Hydrogen bonding plays a crucial role in stabilizing the rotating guest and influencing the energy landscape formation.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Multidisciplinary Sciences
Yuxing Yao, Robert K. A. Bennett, Yang Xu, Adil M. Rather, Shucong Li, Tung Chun Cheung, Alisha Bhanji, Michael J. Kreder, Dan Daniel, Solomon Adera, Joanna Aizenberg, Xiaoguang Wang
Summary: This study presents a design principle using self-assembled monolayer-functionalized microstructured surfaces coated with silicone oil to achieve naked-eye, ultrasensitive detection of amphiphiles by changing the sliding angles of droplets. These surfaces can be used to detect amphiphiles and separate aqueous droplets based on their concentrations.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2022)
Article
Nanoscience & Nanotechnology
Pooria Tajalli, Jennifer M. Hernandez Rivera, Mina Omidiyan, Hung-Vu Tran, T. Randall Lee
Summary: Two different positional isomers of carbonate-terminated alkanethiol molecules were synthesized and used to create self-assembled monolayers (SAMs) on gold as mimics of commercially available polycarbonate surfaces. The characterization of the adsorbate molecules and SAMs was done using various spectroscopic techniques. The wettabilities of both SAMs were found to be similar to that of poly(ethylene carbonate) samples, indicating that the carbonate-terminated SAMs can be used to study the interfacial properties of polycarbonates without interference from surface reconstruction.
ACS APPLIED NANO MATERIALS
(2023)
Article
Chemistry, Physical
Jin Yang, Mingyong Zhou, Jiezhen Liu, Hao Wang, Can Weng
Summary: It was found that using alkanethiols SAMs to modify the Ni substrate could significantly reduce the surface adhesion of Ni substrate and lower the friction coefficient. Mixed alkanethiols SAMs exhibited better lubricity and wear resistance compared to SAMs of single component.
APPLIED SURFACE SCIENCE
(2021)
Article
Chemistry, Multidisciplinary
Shameer Hisham, Norazilawati Muhamad Sarih, Hairul Anuar Tajuddin, Zul Hazrin Zainal Abidin, Zanariah Abdullah
Summary: This study investigates the surface polarity of polymer/dye blend films, revealing reversible changes in surface polarity due to the reversible trans-cis isomerization of chromophores. Through a proof of concept experiment, it is shown that repeated isomerization processes may disrupt interfacial interactions, leading to the detachment of pressure-sensitive stickers from the coating surface.
Article
Chemistry, Physical
Rui Yan, Andreas Terfort, Michael Zharnikov
Summary: The study investigated the effect of wavelength on the modification of archetypical nonsubstituted alkanethiolate self-assembled monolayers on gold surfaces by ultraviolet light. The results provided insights into the behavior of UV-induced processes under different wavelengths and offered a useful tool for estimating proper dosage ranges in applications involving modification of AT-SAMs and thiolate SAMs.
JOURNAL OF PHYSICAL CHEMISTRY C
(2021)
Article
Chemistry, Multidisciplinary
Shakil N. N. Afraj, Chun-Hsiao Kuan, Jian-Sing Lin, Jen-Shyang Ni, Arulmozhi Velusamy, Ming-Chou Chen, Eric Wei-Guang Diau
Summary: Four X-shaped quinoxaline-based organic dyes, PQx (1), TQx, (2), PQxD (3), and TQxD (4), are developed as p-type self-assemble monolayer (SAM) for tin perovskite solar cells (TPSC). The thermal, optical, and electrochemical properties of these SAMs are thoroughly investigated. Tin perovskite layers are successfully deposited on these SAM surfaces using a two-step approach, and the achieved device performance follows the order of TQxD (8.3%) > TQx (8.0%) > PQxD (7.1%) > PQx (6.1%). Among them, TQxD (4), with a thiophene pi-extended conjugation unit in the SAM structure, exhibits the highest hole extraction rates, greatest hole mobilities, and slowest charge recombination, leading to the best reported efficiency of 8.3% for SAM-based TPSC. Moreover, all devices except PQx show good enduring stability, retaining approximately 90% of their original values after 1600 hours of shelf storage.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Katarina Marusic, Ena Pezic, Nives Matijakovic Mlinaric, Pavo Dubcek, Jordi Sancho-Parramon, Damir Kralj, Branka Mihaljevic
Summary: Self-assembled monolayers (SAMs) are an important element of modern nanotechnology and surface functionalization. However, their application is limited due to their vulnerability in corrosive environments. This study demonstrates for the first time how to strongly crosslink SAMs made of non-toxic and biodegradable fatty acids on metal surfaces using ionizing radiation, resulting in stable crosslinked nanocoatings with significantly improved properties compared to SAMs. Crosslinking opens up the possibility of using SAMs in various systems and on different materials for achieving stable and durable surface properties.
Article
Chemistry, Physical
Georgios Stratis, Jordan D. Zesch, Henry S. Pan, Lauren J. Webb, Mark G. Raizen
Summary: This study presents a minimally invasive in situ probe for detecting real-time damage in organic materials. Specifically, metastable excited helium atoms in the S-3(1) state are used to characterize the damage induced by a low-energy electron beam on organic materials.
JOURNAL OF CHEMICAL PHYSICS
(2021)
Article
Chemistry, Physical
Badri P. Mainali, Dhruba K. Pattadar, Francis P. Zamborini
Summary: The oxidation resistance of gold nanoparticles has a unique reverse size dependence for thiolate-coated nanoparticles, where the extent of oxidation increases with size, opposite to weakly stabilized or bare gold nanoparticles.
JOURNAL OF PHYSICAL CHEMISTRY C
(2021)
Article
Chemistry, Physical
Tomas Javorskis, Tomas Rakickas, Alberta Jankunaite, Martynas Talaikis, Gediminas Niaura, Arturas Ulcinas, Edvinas Orentas
Summary: The method involves a simple process for deprotecting N-Boc on surfaces, allowing for meso-scale patterning and additional synthetic modifications. Chemical patterning is achieved using micro-drop equipment and water on heated self-assembled monolayers.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2021)
Article
Chemistry, Physical
Nicolas Tancogne-Dejean, Micael J. T. Oliveira, Xavier Andrade, Heiko Appel, Carlos H. Borca, Guillaume Le Breton, Florian Buchholz, Alberto Castro, Stefano Corni, Alfredo A. Correa, Umberto De Giovannini, Alain Delgado, Florian G. Bich, Johannes Flick, Gabriel Gil, Adrian Gomez, Nicole Helbig, Hannes Huebener, Rene Jestaedt, Joaquim Jornet-Somoza, Ask H. Larsen, Irina Lebedeva, Martin Lueders, Miguel A. L. Marques, Sebastian T. Ohlmann, Silvio Pipolo, Markus Rampp, Carlo A. Rozzi, David A. Strubbe, Shunsuke A. Sato, Christian Schaefer, Iris Theophilou, Alicia Welden, Angel Rubio
JOURNAL OF CHEMICAL PHYSICS
(2020)
Article
Chemistry, Physical
Ciro A. Guido, Marta Rosa, Roberto Cammi, Stefano Corni
JOURNAL OF CHEMICAL PHYSICS
(2020)
Article
Chemistry, Physical
Asma Tougerti, Pardis Simon, Charlotte Desjacques, Jean-Sebastien Girardon, Francesco Mazzanti, Silvio Pipolo, Martine Trentesaux, Sylvain Cristol
JOURNAL OF PHYSICAL CHEMISTRY C
(2020)
Article
Chemistry, Physical
Estelle Illous, Simon Doblinger, Silvio Pipolo, Jesus F. Ontiveros, Raphael Lebeuf, Jean-Marie Aubry
Summary: This study investigates the salt-tolerance of ionic surfactants by inserting polyether spacers between the anionic head and the alkyl chain, exploring the possibility of replacing petro-based polyethoxy spacers with glyceryl ether groups in high salinity applications. Experimental results show that the methylation of glyceryl spacers significantly affects the salt-tolerance of surfactants, with the sodium salt of 1-pentyl-3-methyl glyceryl ether methylene carboxylate demonstrating excellent water solubility at high salt concentrations.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Chemistry, Physical
Ciro A. Guido, Enzo Rotunno, Matteo Zanfrognini, Stefano Corni, Vincenzo Grillo
Summary: This new technique extends electron energy loss spectroscopy to probe spatial features and multipolar components of molecular transitions at a very high spatial resolution. The experiment avoids molecular damage and provides physical insight through a simple but rigorous model to obtain transition rates and selection rules. Numerical simulations of biomolecular systems demonstrate the ability to probe even the chirality of molecular transitions, surpassing traditional optical spectroscopies.
JOURNAL OF CHEMICAL THEORY AND COMPUTATION
(2021)
Article
Nanoscience & Nanotechnology
Mirko Vanzan, Tiziana Cesca, Boris Kalinic, Chiara Maurizio, Giovanni Mattei, Stefano Corni
Summary: Rare-earth ions sensitization is a relevant topic in modern technologies, and noble metal nanoclusters can effectively enhance lanthanide photoluminescence. Experimental works have shown the importance of nanocluster size and composition in this process. By studying the optoelectronic features of metal clusters and their interaction with defects in the silica matrix, new insights can be gained for designing rare-earth ion sensitizers.
Article
Chemistry, Physical
Jannis Krumland, Gabriel Gil, Stefano Corni, Caterina Cocchi
Summary: LayerPCM is an extension of the polarizable-continuum model designed for efficient and accurate description of electrostatic interactions between molecules and multilayered dielectric substrates. It is capable of simulating complex hybrid heterostructures with nano-engineered substrates and can be applied to study frontier energy levels of adsorbates and laser-induced ultrafast dynamics of molecules. The inclusion of electric fields generated by Fresnel reflection at the substrate can lead to non-trivial shapes of reflected fields affecting the dynamics of photo-excited charge carriers.
JOURNAL OF CHEMICAL PHYSICS
(2021)
Article
Chemistry, Physical
P. Grobas Illobre, M. Marsili, S. Corni, M. Stener, D. Toffoli, E. Coccia
Summary: This work introduces a theoretical and computational toolkit for studying time-resolved electron dynamics in molecules, utilizing electronic structure methods and time-dependent Schrodinger equation. A variety of postprocessing tools have been developed to analyze the electronic wavepacket and orbital occupation changes over time. These computational analysis tools are applicable to rapid and ultrafast spectroscopic studies of molecular systems.
JOURNAL OF CHEMICAL THEORY AND COMPUTATION
(2021)
Article
Chemistry, Multidisciplinary
Jacopo Fregoni, Tor S. Haugland, Silvio Pipolo, Tommaso Giovannini, Henrik Koch, Stefano Corni
Summary: Plasmonic nanocavities can confine molecules and electromagnetic fields in nanometric volumes, leading to strong interactions between them. A nonperturbative method combining quantum chemical descriptions of molecules with localized surface plasmons has been used to simulate the properties of polaritons. The study reveals the effects of mutual polarization and correlation of plasmons and molecular excitations, serving as benchmarks for the development of molecular polaritonics methods.
Article
Chemistry, Multidisciplinary
Nicola Peruffo, Gabriel Gil, Stefano Corni, Fabrizio Mancin, Elisabetta Collini
Summary: The coupling of molecular emitters to plasmon resonances in metal nanostructures has been studied to control light-matter interaction at the nanoscale. A responsive nanosystem has been developed using colloidal assembly methods, where two sets of plexcitonic resonances can be selectively switched on and off. Activation of both sets of plexciton resonances simultaneously in the system leads to evidence of a plexciton relaxation cascade in photoluminescence experiments.
Article
Chemistry, Physical
Peter Jacobson, Deborah Prezzi, Dongdong Liu, Monika Schied, James M. Tour, Stefano Corni, Arrigo Calzolari, Elisa Molinari, Leonhard Grill
JOURNAL OF PHYSICAL CHEMISTRY C
(2020)
Article
Chemistry, Physical
Giulia Dall'Osto, Gabriel Gil, Silvio Pipolo, Stefano Corni
JOURNAL OF CHEMICAL PHYSICS
(2020)
Article
Chemistry, Physical
Giulia Dall'Osto, Emanuele Coccia, Ciro A. Guido, Stefano Corni
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2020)
Article
Chemistry, Multidisciplinary
Mirko Vanzan, Marta Rosa, Stefano Corni
NANOSCALE ADVANCES
(2020)