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Protsak M, Biliak K, Nikitin D, Pleskunov P, Tosca M, Ali-Ogly S, Hanuš J, Hanyková L, Červenková V, Sergievskaya A, Konstantinidis S, Cornil D, Cornil J, Cieslar M, Košutová T, Popelář T, Ondič L, Choukourov A. One-step synthesis of photoluminescent nanofluids by direct loading of reactively sputtered cubic ZrN nanoparticles into organic liquids. Nanoscale 2024; 16:2452-2465. [PMID: 38224337 DOI: 10.1039/d3nr03999d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/16/2024]
Abstract
ZrN nanofluids may exhibit unique optoelectronic properties because of the matching of the solar spectrum with interband transitions and localized surface plasmon resonance (LSPR). Nevertheless, these nanofluids have scarcely been investigated, mainly because of the complexity of the current synthetic routes that involve aggressive chemicals and high temperatures. This work aims to validate reactive dc magnetron sputtering of zirconium in Ar/N2 as an environmentally benign, annealing-free method to produce 22 nm-sized, highly crystalline, stoichiometric, electrically conductive, and plasmonic ZrN nanoparticles (NPs) of cubic shape and to load them into vacuum-compatible liquids of different chemical compositions (polyethylene glycol (PEG), paraffin, and pentaphenyl trimethyl trisiloxane (PTT)) in one step. The nanofluids demonstrate LSPR in the red/near-IR range that gives them a bluish color in transmittance. The nanofluids also demonstrate complex photoluminescence behavior such that ZrN NPs enhance the photoluminescence (PL) intensity of paraffin and PEG, whereas the PL of PTT remains almost invariable. Based on DFT calculations, different energetic barriers to charge transfer between ZrN and the organic molecules are suggested as the main factors that influence the observed optoelectronic response. Overall, our study provides a novel approach to the synthesis of transition metal nitride nanofluids in an environmentally friendly manner, deepens the understanding of the interactions between ZrN and organic molecules, and unveils new optoelectronic phenomena in such systems.
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Affiliation(s)
- Mariia Protsak
- Department of Macromolecular Physics, Faculty of Mathematics and Physics, Charles University, V Holešovičkách 2, 180 00, Prague, Czech Republic.
| | - Kateryna Biliak
- Department of Macromolecular Physics, Faculty of Mathematics and Physics, Charles University, V Holešovičkách 2, 180 00, Prague, Czech Republic.
| | - Daniil Nikitin
- Department of Macromolecular Physics, Faculty of Mathematics and Physics, Charles University, V Holešovičkách 2, 180 00, Prague, Czech Republic.
| | - Pavel Pleskunov
- Department of Macromolecular Physics, Faculty of Mathematics and Physics, Charles University, V Holešovičkách 2, 180 00, Prague, Czech Republic.
| | - Marco Tosca
- Department of Macromolecular Physics, Faculty of Mathematics and Physics, Charles University, V Holešovičkách 2, 180 00, Prague, Czech Republic.
- ELI Beamlines Facility, the Extreme Light Infrastructure ERIC, Dolni Brezany, Czech Republic
| | - Suren Ali-Ogly
- Department of Macromolecular Physics, Faculty of Mathematics and Physics, Charles University, V Holešovičkách 2, 180 00, Prague, Czech Republic.
| | - Jan Hanuš
- Department of Macromolecular Physics, Faculty of Mathematics and Physics, Charles University, V Holešovičkách 2, 180 00, Prague, Czech Republic.
| | - Lenka Hanyková
- Department of Macromolecular Physics, Faculty of Mathematics and Physics, Charles University, V Holešovičkách 2, 180 00, Prague, Czech Republic.
| | - Veronika Červenková
- Department of Macromolecular Physics, Faculty of Mathematics and Physics, Charles University, V Holešovičkách 2, 180 00, Prague, Czech Republic.
| | - Anastasiya Sergievskaya
- Plasma-Surface Interaction Chemistry (ChIPS), University of Mons, Place du Parc 20, 7000 Mons, Belgium
| | - Stephanos Konstantinidis
- Plasma-Surface Interaction Chemistry (ChIPS), University of Mons, Place du Parc 20, 7000 Mons, Belgium
| | - David Cornil
- Laboratory for Chemistry of Novel Materials, University of Mons, Place du Parc 23, B-7000 Mons, Belgium
| | - Jérôme Cornil
- Laboratory for Chemistry of Novel Materials, University of Mons, Place du Parc 23, B-7000 Mons, Belgium
| | - Miroslav Cieslar
- Department of Physics of Materials, Faculty of Mathematics and Physics, Charles University, Ke Karlovu 5, 121 16, Prague, Czech Republic
| | - Tereza Košutová
- Department of Condensed Matter Physics, Faculty of Mathematics and Physics, Charles University, Ke Karlovu 5, 121 16, Prague, Czech Republic
| | - Tomáš Popelář
- Institute of Physics of the Czech Academy of Sciences, Cukrovarnická 10/112, 162 00 Prague, Czech Republic
| | - Lukáš Ondič
- Institute of Physics of the Czech Academy of Sciences, Cukrovarnická 10/112, 162 00 Prague, Czech Republic
| | - Andrei Choukourov
- Department of Macromolecular Physics, Faculty of Mathematics and Physics, Charles University, V Holešovičkách 2, 180 00, Prague, Czech Republic.
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2
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Yan S, Cornil D, Cornil J, Beljonne D, Palacios-Rivera R, Ocal C, Barrena E. Polar Polymorphism: A New Intermediate Structure toward the Thin-Film Phase in Asymmetric Benzothieno[3,2- b][1]-benzothiophene Derivatives. Chem Mater 2024; 36:585-595. [PMID: 38222937 PMCID: PMC10783425 DOI: 10.1021/acs.chemmater.3c02926] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Revised: 12/11/2023] [Accepted: 12/11/2023] [Indexed: 01/16/2024]
Abstract
Understanding structure and polymorphism is relevant for any organic device optimization, and it is of particular relevance in 7-decyl-2-phenyl[1]benzothieno[3,2-b][1]benzothiophene (Ph-BTBT-10) since high carrier mobility in Ph-BTBT-10 thin films has been linked to the structural transformation from the metastable thin-film phase to the thermodynamically stable bilayer structure via thermal annealing. We combine here a systematic nanoscale morphological analysis with local Kelvin probe force microcopy (KPFM) that demonstrates the formation of a polar polymorph in thin films as an intermediate structure for thicknesses lower than 20 nm. The polar structure develops with thickness a variable amount of structural defects in the form of individual flipped molecules (point defects) or sizable polar domains, and evolves toward the reported nonpolar thin-film phase. The direct experimental evidence is supported by electronic structure density functional theory calculations. The structure of the film has dramatic effects on the electronic properties, leading to a decrease in the film work function (by up to 1 eV) and a considerable broadening of the occupied molecular orbitals, attributed to electrostatic disorder. From an advanced characterization point of view, KPFM stands out as a valuable tool for evaluating electrostatic disorder and the conceivable emergence of polar polymorphs in organic thin films. The emergence of polar assemblies introduces a critical consideration for other asymmetric BTBT derivatives, which may be pivotal to understanding the structure-property relationships in organic field-effect transistors (OFETs). A precise determination of any polar assemblies close to the dielectric interface is critical for the judicious design and upgrading of high-performance OFETs.
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Affiliation(s)
- Shunya Yan
- Instituto
de Ciencia de Materiales de Barcelona (ICMAB-CSIC), Campus UAB, Bellaterra, E-08193 Barcelona, Spain
| | - David Cornil
- Laboratory
for Chemistry of Novel Materials, University
of Mons (UMONS), 20 Place du Parc, 7000 Mons, Belgium
| | - Jérôme Cornil
- Laboratory
for Chemistry of Novel Materials, University
of Mons (UMONS), 20 Place du Parc, 7000 Mons, Belgium
| | - David Beljonne
- Laboratory
for Chemistry of Novel Materials, University
of Mons (UMONS), 20 Place du Parc, 7000 Mons, Belgium
| | - Rogger Palacios-Rivera
- Instituto
de Ciencia de Materiales de Barcelona (ICMAB-CSIC), Campus UAB, Bellaterra, E-08193 Barcelona, Spain
| | - Carmen Ocal
- Instituto
de Ciencia de Materiales de Barcelona (ICMAB-CSIC), Campus UAB, Bellaterra, E-08193 Barcelona, Spain
| | - Esther Barrena
- Instituto
de Ciencia de Materiales de Barcelona (ICMAB-CSIC), Campus UAB, Bellaterra, E-08193 Barcelona, Spain
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3
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Biliak K, Nikitin D, Ali-Ogly S, Protsak M, Pleskunov P, Tosca M, Sergievskaya A, Cornil D, Cornil J, Konstantinidis S, Košutová T, Černochová Z, Štěpánek P, Hanuš J, Kousal J, Hanyková L, Krakovský I, Choukourov A. Plasmonic Ag/Cu/PEG nanofluids prepared when solids meet liquids in the gas phase. Nanoscale Adv 2023; 5:955-969. [PMID: 36756512 PMCID: PMC9891094 DOI: 10.1039/d2na00785a] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Accepted: 12/22/2022] [Indexed: 06/18/2023]
Abstract
Since the time of Faraday's experiments, the optical response of plasmonic nanofluids has been tailored by the shape, size, concentration, and material of nanoparticles (NPs), or by mixing different types of NPs. To date, water-based liquids have been the most extensively investigated host media, while polymers, such as poly(ethylene glycol) (PEG), have frequently been added to introduce repulsive steric interactions and protect NPs from agglomeration. Here, we introduce an inverse system of non-aqueous nanofluids, in which Ag and Cu NPs are dispersed in PEG (400 g mol-1), with no solvents or chemicals involved. Our single-step approach comprises the synthesis of metal NPs in the gas phase using sputtering-based gas aggregation cluster sources, gas flow transport of NPs, and their deposition (optionally simultaneous) on the PEG surface. Using computational fluid dynamics simulations, we show that NPs diffuse into PEG at an average velocity of the diffusion front of the order of μm s-1, which is sufficient for efficient loading of the entire polymer bulk. We synthesize yellow Ag/PEG, green Cu/PEG, and blue Ag/Cu/PEG nanofluids, in which the color is given by the position of the plasmon resonance. NPs are prone to partial agglomeration and sedimentation, with a slower kinetics for Cu. Density functional theory calculations combined with UV-vis data and zeta-potential measurements prove that the surface oxidation to Cu2O and stronger electrostatic repulsion are responsible for the higher stability of Cu NPs. Adopting the De Gennes formalism, we estimate that PEG molecules adsorb on the NP surface in mushroom coordination, with the thickness of the adsorbed layer L < 1.4 nm, grafting density σ < 0.20, and the average distance between the grafted chains D > 0.8 nm. Such values provide sufficient steric barriers to retard, but not completely prevent, agglomeration. Overall, our approach offers an excellent platform for fundamental research on non-aqueous nanofluids, with metal-polymer and metal-metal interactions unperturbed by the presence of solvents or chemical residues.
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Affiliation(s)
- Kateryna Biliak
- Department of Macromolecular Physics, Faculty of Mathematics and Physics, Charles University V Holešovičkách 2 180 00 Prague Czech Republic
| | - Daniil Nikitin
- Department of Macromolecular Physics, Faculty of Mathematics and Physics, Charles University V Holešovičkách 2 180 00 Prague Czech Republic
| | - Suren Ali-Ogly
- Department of Macromolecular Physics, Faculty of Mathematics and Physics, Charles University V Holešovičkách 2 180 00 Prague Czech Republic
| | - Mariia Protsak
- Department of Macromolecular Physics, Faculty of Mathematics and Physics, Charles University V Holešovičkách 2 180 00 Prague Czech Republic
| | - Pavel Pleskunov
- Department of Macromolecular Physics, Faculty of Mathematics and Physics, Charles University V Holešovičkách 2 180 00 Prague Czech Republic
| | - Marco Tosca
- Department of Macromolecular Physics, Faculty of Mathematics and Physics, Charles University V Holešovičkách 2 180 00 Prague Czech Republic
- ELI-Beamlines Centre, Institute of Physics, Czech Academy of Sciences Dolni Brezany Czech Republic
| | - Anastasiya Sergievskaya
- Plasma-Surface Interaction Chemistry (ChIPS), University of Mons Place du Parc 20 7000 Mons Belgium
| | - David Cornil
- Laboratory for Chemistry of Novel Materials, University of Mons Place du Parc 23 B-7000 Mons Belgium
| | - Jérôme Cornil
- Laboratory for Chemistry of Novel Materials, University of Mons Place du Parc 23 B-7000 Mons Belgium
| | - Stephanos Konstantinidis
- Plasma-Surface Interaction Chemistry (ChIPS), University of Mons Place du Parc 20 7000 Mons Belgium
| | - Tereza Košutová
- Department of Condensed Matter Physics, Faculty of Mathematics and Physics, Charles University Ke Karlovu 5 121 16 Prague Czech Republic
| | - Zulfiya Černochová
- Institute of Macromolecular Chemistry, Czech Academy of Sciences Heyrovského nám. 2 162 06 Prague Czech Republic
| | - Petr Štěpánek
- Institute of Macromolecular Chemistry, Czech Academy of Sciences Heyrovského nám. 2 162 06 Prague Czech Republic
| | - Jan Hanuš
- Department of Macromolecular Physics, Faculty of Mathematics and Physics, Charles University V Holešovičkách 2 180 00 Prague Czech Republic
| | - Jaroslav Kousal
- Department of Macromolecular Physics, Faculty of Mathematics and Physics, Charles University V Holešovičkách 2 180 00 Prague Czech Republic
| | - Lenka Hanyková
- Department of Macromolecular Physics, Faculty of Mathematics and Physics, Charles University V Holešovičkách 2 180 00 Prague Czech Republic
| | - Ivan Krakovský
- Department of Macromolecular Physics, Faculty of Mathematics and Physics, Charles University V Holešovičkách 2 180 00 Prague Czech Republic
| | - Andrei Choukourov
- Department of Macromolecular Physics, Faculty of Mathematics and Physics, Charles University V Holešovičkách 2 180 00 Prague Czech Republic
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Bouaziz E, Kammoun O, Slassi A, Cornil D, Lhoste J, Auguste S, Boujelbene M. A supramolecular non centrosymmetric 2,6-diaminopyridinium perchlorate salt: Crystal structure and optoelectronic DFT study. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.133561] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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5
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Chauvin A, Sergievskaya A, Fucikova A, Corrêa CA, Vesely J, Cornil J, Cornil D, Dopita M, Konstantinidis S. Insights into the growth of nanoparticles in liquid polyol by thermal annealing. Nanoscale Adv 2021; 3:4780-4789. [PMID: 36134317 PMCID: PMC9418955 DOI: 10.1039/d1na00222h] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Accepted: 06/28/2021] [Indexed: 05/20/2023]
Abstract
We report on the growth of metal- and metal-oxide based nanoparticles (NPs) in heated polyol solutions. For this purpose, NPs are produced by the sputtering of a silver, gold, or a copper target to produce either silver, gold, or copper oxide NPs in pentaerythritol ethoxylate (PEEL) which has been annealed up to 200 °C. The objective of the annealing step is the fine modulation of their size. Thus, the evolution of the NP size and shape after thermal annealing is explained according to collision/coalescence kinetics and the affinity between the metal-/metal-oxide and PEEL molecule. Moreover, highlights of few phenomena arising from the annealing step are described such as (i) the reduction of copper oxide into copper by the polyol process and (ii) the effective formation of carbon dots after annealing at 200 °C.
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Affiliation(s)
- Adrien Chauvin
- Department of Condensed Matter Physics, Faculty of Mathematics and Physics, Charles University Ke Karlovu 5 121 16 Praha 2 Czech Republic
- Chimie des Interactions Plasma-Surface (ChIPS), University of Mons Place du Parc 20 7000 Mons Belgium
| | - Anastasiya Sergievskaya
- Chimie des Interactions Plasma-Surface (ChIPS), University of Mons Place du Parc 20 7000 Mons Belgium
| | - Anna Fucikova
- Department of Chemical Physics and Optics, Faculty of Mathematics and Physics, Charles University Ke Karlovu 5 121 16 Praha 2 Czech Republic
| | - Cinthia Antunes Corrêa
- Institute of Physics of the Czech Academy of Sciences Cukrovarnická 10/112 162 00 Prague 6 Czech Republic
- Department of Physics of Materials, Faculty of Mathematics and Physics, Charles University Ke Karlovu 5 121 16 Praha 2 Czech Republic
| | - Jozef Vesely
- Department of Physics of Materials, Faculty of Mathematics and Physics, Charles University Ke Karlovu 5 121 16 Praha 2 Czech Republic
| | - Jérôme Cornil
- Laboratory for Chemistry of Novel Materials (CMN), University of Mons Place du Parc 20 Mons 7000 Belgium
| | - David Cornil
- Laboratory for Chemistry of Novel Materials (CMN), University of Mons Place du Parc 20 Mons 7000 Belgium
| | - Milan Dopita
- Department of Condensed Matter Physics, Faculty of Mathematics and Physics, Charles University Ke Karlovu 5 121 16 Praha 2 Czech Republic
| | - Stephanos Konstantinidis
- Chimie des Interactions Plasma-Surface (ChIPS), University of Mons Place du Parc 20 7000 Mons Belgium
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6
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Sergievskaya A, O’Reilly A, Alem H, De Winter J, Cornil D, Cornil J, Konstantinidis S. Insights on the Formation of Nanoparticles Prepared by Magnetron Sputtering Onto Liquids: Gold Sputtered Onto Castor Oil as a Case Study. Front Nanotechnol 2021. [DOI: 10.3389/fnano.2021.710612] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
Magnetron sputter deposition of metal targets over liquids allows producing colloidal solutions of small metal nanoparticles (NPs) without any additional reducing or stabilizing reagents. Despite that this synthetic approach is known for almost 15 years, the detailed mechanism of NP formation is still unclear. Detailed investigations must be carried out to better understand the growth mechanism and, ultimately, control the properties of the NPs. Here, the combination of the gold (Au) target and castor oil, a highly available green solvent, was chosen as a model system to investigate how different experimental parameters affect the growth of NPs. The effect of deposition time, applied sputter power, working gas pressure, and type of sputter plasma (direct current magnetron sputtering (DC-MS) vs. high-power impulse magnetron sputtering (HiPIMS)) on properties of Au NPs has been studied by UV-vis spectroscopy and transmission electron microscopy (TEM), and further supported by quantum-chemistry calculations and mass-spectrometry analysis. The mechanism of the Au NP formation includes the production of primary NPs and their subsequent aggregative growth limited by diffusion in the viscous castor oil medium. Final Au NPs have a narrow size distribution and a medium diameter of 2.4–3.2 nm when produced in DC-MS mode. The NP size can be increased up to 5.2 ± 0.8 nm by depositing in HiPIMS mode which, therefore, mimics energy and time-consuming post synthesis annealing.
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Diez Cabanes V, Van Dyck C, Osella S, Cornil D, Cornil J. Challenges for Incorporating Optical Switchability in Organic-Based Electronic Devices. ACS Appl Mater Interfaces 2021; 13:27737-27748. [PMID: 34105343 DOI: 10.1021/acsami.1c05489] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Transistors operate by controlling the current flowing from a source to a drain electrode via a third electrode (gate), thus giving access to a binary treatment (ON/OFF or 0/1) of the signal currently exploited in microelectronics. Introducing a second independent lever to modulate the current would allow for more complex logic functions amenable to a single electronic component and hence to new opportunities for advanced electrical signal processing. One avenue is to add this second dimension with light by incorporating photochromic molecules in current organic-based electronic devices. In this Spotlight, we describe different concepts that have been implemented in organic thin films and in molecular junctions as well as some pitfalls that have been highlighted thanks to theoretical modeling.
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Affiliation(s)
- Valentin Diez Cabanes
- Laboratoire de Physique et Chimie Théoriques, Université de Lorraine & CNRS, 54000 Nancy, France
| | - Colin Van Dyck
- Laboratory for Chemistry of Novel Materials, University of Mons, Place du Parc 20, 7000 Mons, Belgium
| | - Silvio Osella
- Chemical and Biological Systems Simulation Lab, Centre of New Technologies, University of Warsaw, Banacha 2c, 02-097 Warszawa, Poland
| | - David Cornil
- Laboratory for Chemistry of Novel Materials, University of Mons, Place du Parc 20, 7000 Mons, Belgium
| | - Jérôme Cornil
- Laboratory for Chemistry of Novel Materials, University of Mons, Place du Parc 20, 7000 Mons, Belgium
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Sergievskaya A, O’Reilly A, Chauvin A, Veselý J, Panepinto A, De Winter J, Cornil D, Cornil J, Konstantinidis S. Magnetron sputter deposition of silver onto castor oil: The effect of plasma parameters on nanoparticle properties. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.126286] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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9
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Chauvin A, Sergievskaya A, El Mel AA, Fucikova A, Antunes Corrêa C, Vesely J, Duverger-Nédellec E, Cornil D, Cornil J, Tessier PY, Dopita M, Konstantinidis S. Co-sputtering of gold and copper onto liquids: a route towards the production of porous gold nanoparticles. Nanotechnology 2020; 31:455303. [PMID: 32726767 DOI: 10.1088/1361-6528/abaa75] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Effective methods for the synthesis of high-purity nanoparticles (NPs) have been extensively studied for a few decades. Among others, cold plasma-based sputtering metals onto a liquid substrate appears to be a very promising technique for the synthesis of high-purity NPs. The process enables the production of very small NPs without using any toxic reagents and complex chemical synthesis routes, and enables the synthesis of alloy NPs which can be the first step towards the formation of porous NPs. In this paper, the synthesis of gold-copper alloy NPs has been performed by co-sputtering gold and copper targets over pentaerythritol ethoxylate. The resulting solutions contain a mixture of gold, copper oxide, and alloy NPs having a radius of few angstroms. The annealing of these NPs, inside the solution, has been performed in order to increase their size and further induce the dealloying of the Au-Cu NPs. The resulting NPs exhibit either a nanoporous structure or are self-organized in an agglomerate of small NPs.
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Affiliation(s)
- Adrien Chauvin
- Department of Condensed Matter Physics, Faculty of Mathematics and Physics, Charles University, Ke Karlovu 5, 121 16, Praha 2, Czech Republic
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10
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Cornil D, Rivolta N, Mercier V, Wiame H, Beljonne D, Cornil J. Enhanced Adhesion Energy at Oxide/Ag Interfaces for Low-Emissivity Glasses: Theoretical Insight into Doping and Vacancy Effects. ACS Appl Mater Interfaces 2020; 12:40838-40849. [PMID: 32804476 DOI: 10.1021/acsami.0c07579] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Low-emissivity glasses rely on multistacked architectures with a thin silver layer sandwiched between oxide layers. The mechanical stability of the silver/oxide interfaces is a critical parameter that must be maximized. Here, we demonstrate by means of quantum-chemical calculations that a low work of adhesion at interfaces can be significantly increased via doping and by introducing vacancies in the oxide layer. For the sake of illustration, we focus on the ZrO2(111)/Ag(111) interface exhibiting a poor adhesion in the pristine state and quantify the impact of introducing n-type dopants or p-type dopants in ZrO2 and vacancies in oxygen atoms (nVO; with n = 1, 2, 4, 8, 10, 16), zirconium atoms (mVZr; with m = 1, 2, 4, 8), or both (nVO + mVZr; with m/n = 1:2, 1:4, 2:2, 2:4). In the case of doping, interfacial electron transfer promotes an increase in the work of adhesion, from initially 0.16 to ∼0.8 J m-2 (n-type) and ∼2.0 J m-2 (p-type) at 10% doping. A similar increase in the work of adhesion is obtained by introducing vacancies, e.g., VO [VZr] in the oxide layer yields a work of adhesion of ∼1.5-2.0 J m-2 at 10% vacancies. An increase is also observed when mixing VO and VZr vacancies in a nonstoichiometric ratio (nVO + mVZr; with 2n ≠ m), while a stoichiometric ratio of VO and VZr has no impact on the interfacial properties.
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Affiliation(s)
- David Cornil
- Laboratory for Chemistry of Novel Materials, University of Mons (UMONS), Place du Parc 20, 7000 Mons, Belgium
| | - Nicolas Rivolta
- AGC Glass Europe Technovation Centre, rue Louis Blériot 12, 6041 Gosselies, Belgium
| | - Virginie Mercier
- AGC Glass Europe Technovation Centre, rue Louis Blériot 12, 6041 Gosselies, Belgium
| | - Hughes Wiame
- AGC Glass Europe Technovation Centre, rue Louis Blériot 12, 6041 Gosselies, Belgium
| | - David Beljonne
- Laboratory for Chemistry of Novel Materials, University of Mons (UMONS), Place du Parc 20, 7000 Mons, Belgium
| | - Jérôme Cornil
- Laboratory for Chemistry of Novel Materials, University of Mons (UMONS), Place du Parc 20, 7000 Mons, Belgium
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Slassi A, Cornil D, Cornil J. Theoretical characterization of the electronic properties of heterogeneous vertical stacks of 2D metal dichalcogenides containing one doped layer. Phys Chem Chem Phys 2020; 22:14088-14098. [PMID: 32542278 DOI: 10.1039/d0cp01878c] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The rise of van der Waals hetero-structures based on transition metal dichalcogenides (TMDs) opens the door to a new generation of optoelectronic devices. A key factor controlling the operation and performance of such devices is the relative alignment of the band edges of the components. The electronic properties of the layers can be further modulated by chemical doping, typically leading to the introduction of gap states. However, it is not clear whether the impact of doping in a given layer is preserved when building vertical stacks incorporating it. This has motivated the present study aiming at shedding light by means of first-principles calculations on the electronic properties of heterogeneous bilayers containing one doped layer. Doping has been achieved based on the experimental literature by inserting the dopants by substitution in the 2D layer, by covalently attaching adatoms or functional groups on the surface, or by physisorbing electroactive molecules. Interestingly, very different scenarios can be encountered depending on the two materials present and the nature of doping. The impact of doping is preserved when the trap levels associated with the dopants lie in the bandgap of the bilayer. On the other hand, the pristine neutral layer can get doped to an extent depending on how its electrons can fill the trap levels associated with the other component. Altogether, the present theoretical work demonstrates that the properties of the bilayers are not simply defined by additive rules of the components.
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Affiliation(s)
- Amine Slassi
- Laboratory for Chemistry of Novel Materials, University of Mons, BE-7000 Mons, Belgium.
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12
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Wittmann A, Schweicher G, Broch K, Novak J, Lami V, Cornil D, McNellis ER, Zadvorna O, Venkateshvaran D, Takimiya K, Geerts YH, Cornil J, Vaynzof Y, Sinova J, Watanabe S, Sirringhaus H. Tuning Spin Current Injection at Ferromagnet-Nonmagnet Interfaces by Molecular Design. Phys Rev Lett 2020; 124:027204. [PMID: 32004034 DOI: 10.1103/physrevlett.124.027204] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2019] [Revised: 09/18/2019] [Indexed: 06/10/2023]
Abstract
There is a growing interest in utilizing the distinctive material properties of organic semiconductors for spintronic applications. Here, we explore the injection of pure spin current from Permalloy into a small molecule system based on dinaphtho[2,3-b:2,3-f]thieno[3,2-b]thiophene (DNTT) at ferromagnetic resonance. The unique tunability of organic materials by molecular design allows us to study the impact of interfacial properties on the spin injection efficiency systematically. We show that both the spin injection efficiency at the interface and the spin diffusion length can be tuned sensitively by the interfacial molecular structure and side chain substitution of the molecule.
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Affiliation(s)
- Angela Wittmann
- Optoelectronics Group, Cavendish Laboratory, University of Cambridge, J. J. Thompson Avenue, Cambridge CB3 0HE, United Kingdom
| | - Guillaume Schweicher
- Optoelectronics Group, Cavendish Laboratory, University of Cambridge, J. J. Thompson Avenue, Cambridge CB3 0HE, United Kingdom
| | - Katharina Broch
- Institut für Angewandte Physik, Universität Tübingen, Aufder Morgenstelle 10, 72076 Tübingen, Germany
| | - Jiri Novak
- CEITEC MU and Faculty of Science, Masaryk University, 61137 Brno, Czech Republic
| | - Vincent Lami
- Kirchhof Institute for Physics, Im Neuenheimer Feld 227, Heidelberg University, 69120 Heidelberg, Germany
- Centre for Advanced Materials, Im Neuenheimer Feld 225, Heidelberg University, 69120 Heidelberg, Germany
| | - David Cornil
- Laboratory for Chemistry of Novel Materials, University of Mons, 7000 Mons, Belgium
| | - Erik R McNellis
- Institute of Physics, Johannes Gutenberg-Universität, 55128 Mainz, Germany
| | - Olga Zadvorna
- Optoelectronics Group, Cavendish Laboratory, University of Cambridge, J. J. Thompson Avenue, Cambridge CB3 0HE, United Kingdom
| | - Deepak Venkateshvaran
- Optoelectronics Group, Cavendish Laboratory, University of Cambridge, J. J. Thompson Avenue, Cambridge CB3 0HE, United Kingdom
| | - Kazuo Takimiya
- RIKEN Center for Emergent Matter Science, Wako, Saitama 351-0198, Japan
| | - Yves H Geerts
- Laboratoire de Chimie des Polymères, Université Libre de Bruxelles, 1050 Bruxelles, Belgium
| | - Jérôme Cornil
- Laboratory for Chemistry of Novel Materials, University of Mons, 7000 Mons, Belgium
| | - Yana Vaynzof
- Kirchhof Institute for Physics, Im Neuenheimer Feld 227, Heidelberg University, 69120 Heidelberg, Germany
- Centre for Advanced Materials, Im Neuenheimer Feld 225, Heidelberg University, 69120 Heidelberg, Germany
| | - Jairo Sinova
- Institute of Physics, Johannes Gutenberg-Universität, 55128 Mainz, Germany
| | - Shun Watanabe
- Department of Advanced Materials Science, School of Frontier Sciences, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8561, Japan
| | - Henning Sirringhaus
- Optoelectronics Group, Cavendish Laboratory, University of Cambridge, J. J. Thompson Avenue, Cambridge CB3 0HE, United Kingdom
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13
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Idé J, Cornil D, Jacques A, Navet B, Boulanger P, Ventelon L, Lazzaroni R, Beljonne D, Cornil J. Glass Hardness Modification by Means of Ion Implantation: Electronic Doping versus Surface Composition Effect. Adv Theory Simul 2019. [DOI: 10.1002/adts.201900039] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Julien Idé
- Laboratory for Chemistry of Novel MaterialsUniversity of Mons Place du Parc 20 7000 Mons Belgium
| | - David Cornil
- Laboratory for Chemistry of Novel MaterialsUniversity of Mons Place du Parc 20 7000 Mons Belgium
| | - Amory Jacques
- AGC Technovation Center Rue Louis Blériot 12 6041 Charleroi Belgium
| | - Benjamine Navet
- AGC Technovation Center Rue Louis Blériot 12 6041 Charleroi Belgium
| | - Pierre Boulanger
- AGC Technovation Center Rue Louis Blériot 12 6041 Charleroi Belgium
| | - Lionel Ventelon
- AGC Technovation Center Rue Louis Blériot 12 6041 Charleroi Belgium
| | - Roberto Lazzaroni
- Laboratory for Chemistry of Novel MaterialsUniversity of Mons Place du Parc 20 7000 Mons Belgium
| | - David Beljonne
- Laboratory for Chemistry of Novel MaterialsUniversity of Mons Place du Parc 20 7000 Mons Belgium
| | - Jérôme Cornil
- Laboratory for Chemistry of Novel MaterialsUniversity of Mons Place du Parc 20 7000 Mons Belgium
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14
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Velpula G, Phillipson R, Lian JX, Cornil D, Walke P, Verguts K, Brems S, Uji-I H, De Gendt S, Beljonne D, Lazzaroni R, Mali KS, De Feyter S. Graphene Meets Ionic Liquids: Fermi Level Engineering via Electrostatic Forces. ACS Nano 2019; 13:3512-3521. [PMID: 30860809 DOI: 10.1021/acsnano.8b09768] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Graphene-based two-dimensional (2D) materials are promising candidates for a number of different energy applications. A particularly interesting one is in next generation supercapacitors, where graphene is being explored as an electrode material in combination with room temperature ionic liquids (ILs) as electrolytes. Because the amount of energy that can be stored in such supercapacitors critically depends on the electrode-electrolyte interface, there is considerable interest in understanding the structure and properties of the graphene/IL interface. Here, we report the changes in the properties of graphene upon adsorption of a homologous series of alkyl imidazolium tetrafluoroborate ILs using a combination of experimental and theoretical tools. Raman spectroscopy reveals that these ILs cause n-type doping of graphene, and the magnitude of doping increases with increasing cation chain length despite the expected decrease in the density of surface-adsorbed ions. Molecular modeling simulations show that doping originates from the changes in the electrostatic potential at the graphene/IL interface. The findings described here represent an important step in developing a comprehensive understanding of the graphene/IL interface.
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Affiliation(s)
- Gangamallaiah Velpula
- Division of Molecular Imaging and Photonics, Department of Chemistry , KU Leuven , Celestijnenlaan, 200F , B-3001 Leuven , Belgium
| | - Roald Phillipson
- Division of Molecular Imaging and Photonics, Department of Chemistry , KU Leuven , Celestijnenlaan, 200F , B-3001 Leuven , Belgium
| | - Jian Xiang Lian
- Laboratory for Chemistry of Novel Materials , University of Mons , Place du Parc 20 , 7000 Mons , Belgium
| | - David Cornil
- Laboratory for Chemistry of Novel Materials , University of Mons , Place du Parc 20 , 7000 Mons , Belgium
| | - Peter Walke
- Division of Molecular Imaging and Photonics, Department of Chemistry , KU Leuven , Celestijnenlaan, 200F , B-3001 Leuven , Belgium
| | - Ken Verguts
- Molecular Design and Synthesis, Department of Chemistry , KU Leuven , Celestijnenlaan 200F , B-3001 Leuven , Belgium
- imec vzw , Kapeldreef 75 , B-3001 Leuven , Belgium
| | - Steven Brems
- imec vzw , Kapeldreef 75 , B-3001 Leuven , Belgium
| | - Hiroshi Uji-I
- Division of Molecular Imaging and Photonics, Department of Chemistry , KU Leuven , Celestijnenlaan, 200F , B-3001 Leuven , Belgium
- RIES , Hokkaido University , N20 W10 , Kita-Ward, Sapporo 001-0020 , Japan
| | - Stefan De Gendt
- Molecular Design and Synthesis, Department of Chemistry , KU Leuven , Celestijnenlaan 200F , B-3001 Leuven , Belgium
- imec vzw , Kapeldreef 75 , B-3001 Leuven , Belgium
| | - David Beljonne
- Laboratory for Chemistry of Novel Materials , University of Mons , Place du Parc 20 , 7000 Mons , Belgium
| | - Roberto Lazzaroni
- Laboratory for Chemistry of Novel Materials , University of Mons , Place du Parc 20 , 7000 Mons , Belgium
| | - Kunal S Mali
- Division of Molecular Imaging and Photonics, Department of Chemistry , KU Leuven , Celestijnenlaan, 200F , B-3001 Leuven , Belgium
| | - Steven De Feyter
- Division of Molecular Imaging and Photonics, Department of Chemistry , KU Leuven , Celestijnenlaan, 200F , B-3001 Leuven , Belgium
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15
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Diez-Cabanes V, Gonzalez SR, Osella S, Cornil D, Van Dyck C, Cornil J. Energy Level Alignment at Interfaces Between Au (111) and Thiolated Oligophenylenes of Increasing Chain Size: Theoretical Evidence of Pinning Effects. Adv Theory Simul 2018. [DOI: 10.1002/adts.201700020] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
| | | | - Silvio Osella
- Centre of New Technologies; University of Warsaw; Warszawa 02-097 Poland
| | - David Cornil
- Laboratory for Chemistry of Novel Materials; University of Mons; Mons 7000 Belgium
| | - Colin Van Dyck
- National Institute for Nanotechnology; Edmonton AB T6G 2M9 Canada
| | - Jérôme Cornil
- Laboratory for Chemistry of Novel Materials; University of Mons; Mons 7000 Belgium
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16
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Dervaux J, Cormier PA, Struzzi C, Scardamaglia M, Bittencourt C, Petaccia L, Cornil D, Lasser L, Beljonne D, Cornil J, Lazzaroni R, Snyders R. Probing the interaction between 2,2'-bithiophene-5-carboxylic acid and TiO 2 by photoelectron spectroscopy: A joint experimental and theoretical study. J Chem Phys 2017; 147:244704. [PMID: 29289152 DOI: 10.1063/1.5008800] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The interaction between 2,2'-bithiophene-5-carboxylic acid (PT2) sublimed under ultra-high vacuum conditions and anatase (101) and rutile (110) TiO2 single crystal surfaces is investigated by studying the electronic spectral density near the Fermi level with synchrotron-based spectroscopy. The experimental results are compared to density functional theory calculations of the isolated PT2 molecule and of the molecule adsorbed on an anatase TiO2 (101) cluster. The relative concentrations of Ti, C, and S atoms indicate that the adsorbed molecule remains intact upon deposition, which is typical of a Stranski-Krastanov growth mode. The analysis of the O1s spectrum suggests a predominant bidentate geometry of the adsorption with both rutile and anatase surfaces, as supported by previous theoretical simulations. It is also theoretically and experimentally demonstrated that the PT2 adsorption causes the appearance of new electronic states in the gap near the TiO2 valence band. A pinning effect of the LUMO level of the dye is also theoretically predicted.
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Affiliation(s)
- J Dervaux
- Chimie des Interactions Plasma-Surface, University of Mons (UMONS), 20 Place du Parc, 7000 Mons, Belgium
| | - P-A Cormier
- Chimie des Interactions Plasma-Surface, University of Mons (UMONS), 20 Place du Parc, 7000 Mons, Belgium
| | - C Struzzi
- Chimie des Interactions Plasma-Surface, University of Mons (UMONS), 20 Place du Parc, 7000 Mons, Belgium
| | - M Scardamaglia
- Chimie des Interactions Plasma-Surface, University of Mons (UMONS), 20 Place du Parc, 7000 Mons, Belgium
| | - C Bittencourt
- Chimie des Interactions Plasma-Surface, University of Mons (UMONS), 20 Place du Parc, 7000 Mons, Belgium
| | - L Petaccia
- Elettra Sincrotrone Trieste, Strada Statale 14 km 163.5, I-34149 Trieste, Italy
| | - D Cornil
- Service de Chimie des Matériaux Nouveaux, University of Mons (UMONS), 20 Place du Parc, 7000 Mons, Belgium
| | - L Lasser
- Service de Chimie des Matériaux Nouveaux, University of Mons (UMONS), 20 Place du Parc, 7000 Mons, Belgium
| | - D Beljonne
- Service de Chimie des Matériaux Nouveaux, University of Mons (UMONS), 20 Place du Parc, 7000 Mons, Belgium
| | - J Cornil
- Service de Chimie des Matériaux Nouveaux, University of Mons (UMONS), 20 Place du Parc, 7000 Mons, Belgium
| | - R Lazzaroni
- Service de Chimie des Matériaux Nouveaux, University of Mons (UMONS), 20 Place du Parc, 7000 Mons, Belgium
| | - R Snyders
- Chimie des Interactions Plasma-Surface, University of Mons (UMONS), 20 Place du Parc, 7000 Mons, Belgium
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17
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Cao H, Minoia A, De Cat I, Seibel J, Waghray D, Li Z, Cornil D, Mali KS, Lazzaroni R, Dehaen W, De Feyter S. Hierarchical self-assembly of enantiopure and racemic helicenes at the liquid/solid interface: from 2D to 3D. Nanoscale 2017; 9:18075-18080. [PMID: 29135011 DOI: 10.1039/c7nr06700c] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The performance of organic nanostructures is closely related to the organization of the functional molecules. Frequently, molecular chirality plays a central role in the way molecules assemble at the supramolecular level. Herein we report the hierarchical self-assembly of benzo-fused tetrathia[7]helicenes on solid surfaces, from a single surface-bound molecule to well-defined microstructures, using a combination of various characterization techniques assisted by molecular modeling simulations. Similarities as well as discrepancies are revealed between homochiral and heterochiral aggregations by monitoring the hierarchical nucleation of helicenes on surfaces, where the impact of enantiopurity, concentration and adsorbate-substrate interaction on molecular organization are disclosed.
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Affiliation(s)
- Hai Cao
- Department of Chemistry, Division of Molecular Imaging and Photonics, KU Leuven-University of Leuven, Celestijnenlaan 200-F, 3001 Leuven, Belgium.
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18
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Cornil D, Wiame H, Lecomte B, Cornil J, Beljonne D. Which Oxide for Low-Emissivity Glasses? First-Principles Modeling of Silver Adhesion. ACS Appl Mater Interfaces 2017; 9:18346-18354. [PMID: 28485574 DOI: 10.1021/acsami.7b03269] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Density functional theory (DFT) calculations were performed to assess the work of adhesion of silver layers deposited on metal oxide surfaces differing by their chemical nature (ZnO, TiO2, SnO2, and ZrO2) and their crystallographic face. The calculated work of adhesion values range from ∼0 to 3 J m-2 and are shown to originate from the interplay between ionic (associated with charge transfer at the interface) and covalent (as probed by atomic bond orders between silver and the metal oxide atoms) interactions. The results are discussed in the context of the design of silver/metal oxide interfaces for low-emissivity glasses.
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Affiliation(s)
- David Cornil
- Laboratory for Chemistry of Novel Materials, University of Mons (UMONS) , Place du Parc 20, 7000 Mons, Belgium
| | - Hugues Wiame
- AGC Glass Europe Technovation Centre , rue Louis Blériot 12, 6041 Gosselies, Belgium
| | - Benoit Lecomte
- AGC Glass Europe Technovation Centre , rue Louis Blériot 12, 6041 Gosselies, Belgium
| | - Jérôme Cornil
- Laboratory for Chemistry of Novel Materials, University of Mons (UMONS) , Place du Parc 20, 7000 Mons, Belgium
| | - David Beljonne
- Laboratory for Chemistry of Novel Materials, University of Mons (UMONS) , Place du Parc 20, 7000 Mons, Belgium
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19
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Arbouch I, Cornil D, Karzazi Y, Hammouti B, Lazzaroni R, Cornil J. Influence of the nature of the anchoring group on electron injection processes at dye–titania interfaces. Phys Chem Chem Phys 2017; 19:29389-29401. [DOI: 10.1039/c7cp05638a] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
DFT calculations show deep changes in the electronic and optical properties of oligothiophene dyes when grafted on a titania surface via carboxylic acid or catechol moiety as anchoring group.
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Affiliation(s)
- Imane Arbouch
- Laboratoire de Chimie Analytique Appliquée
- Matériaux et Environnement (LC2AME)
- Faculté des Sciences
- Université Mohammed Premier
- 60046 Oujda
| | - David Cornil
- Service de Chimie des Matériaux Nouveaux
- Université de Mons
- B-7000 Mons
- Belgium
| | - Yasser Karzazi
- Laboratoire de Chimie Analytique Appliquée
- Matériaux et Environnement (LC2AME)
- Faculté des Sciences
- Université Mohammed Premier
- 60046 Oujda
| | - Belkheir Hammouti
- Laboratoire de Chimie Analytique Appliquée
- Matériaux et Environnement (LC2AME)
- Faculté des Sciences
- Université Mohammed Premier
- 60046 Oujda
| | - Roberto Lazzaroni
- Service de Chimie des Matériaux Nouveaux
- Université de Mons
- B-7000 Mons
- Belgium
| | - Jérôme Cornil
- Service de Chimie des Matériaux Nouveaux
- Université de Mons
- B-7000 Mons
- Belgium
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20
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Winget P, Schirra LK, Cornil D, Li H, Coropceanu V, Ndione PF, Sigdel AK, Ginley DS, Berry JJ, Shim J, Kim H, Kippelen B, Brédas JL, Monti OLA. Defect-driven interfacial electronic structures at an organic/metal-oxide semiconductor heterojunction. Adv Mater 2014; 26:4711-4716. [PMID: 24830796 DOI: 10.1002/adma.201305351] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2013] [Revised: 04/19/2014] [Indexed: 06/03/2023]
Abstract
The electronic structure of the hybrid interface between ZnO and the prototypical organic semiconductor PTCDI is investigated via a combination of ultraviolet and X-ray photoelectron spectroscopy (UPS/XPS) and density functional theory (DFT) calculations. The interfacial electronic interactions lead to a large interface dipole due to substantial charge transfer from ZnO to 3,4,9,10-perylenetetracarboxylicdiimide (PTCDI), which can be properly described only when accounting for surface defects that confer ZnO its n-type properties.
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Affiliation(s)
- Paul Winget
- School of Chemistry and Biochemistry and Center for Organic Photonics and Electronics, Georgia Institute of Technology, Atlanta, Georgia, 30332-0400
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21
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Cornil D, Van Regemorter T, Beljonne D, Cornil J. Work function shifts of a zinc oxide surface upon deposition of self-assembled monolayers: a theoretical insight. Phys Chem Chem Phys 2014; 16:20887-99. [DOI: 10.1039/c4cp02811b] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We have investigated at the DFT level the way the work function of ZnO is affected upon deposition of self-assembled monolayers made of 4-tert-butylpyridine and various benzoic acids.
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Affiliation(s)
- D. Cornil
- Laboratory for Chemistry of Novel Materials
- University of Mons (UMons)
- Mons 7000, Belgium
| | - T. Van Regemorter
- Laboratory for Chemistry of Novel Materials
- University of Mons (UMons)
- Mons 7000, Belgium
| | - D. Beljonne
- Laboratory for Chemistry of Novel Materials
- University of Mons (UMons)
- Mons 7000, Belgium
| | - J. Cornil
- Laboratory for Chemistry of Novel Materials
- University of Mons (UMons)
- Mons 7000, Belgium
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22
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Osella S, Cornil D, Cornil J. Work function modification of the (111) gold surface covered by long alkanethiol-based self-assembled monolayers. Phys Chem Chem Phys 2014; 16:2866-73. [DOI: 10.1039/c3cp54217c] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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23
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Cornil D, Li H, Wood C, Pourtois G, Brédas JL, Cornil J. Work-Function Modification of Au and Ag Surfaces upon Deposition of Self-Assembled Monolayers: Influence of the Choice of the Theoretical Approach and the Thiol Decomposition Scheme. Chemphyschem 2013; 14:2939-46. [DOI: 10.1002/cphc.201300450] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2013] [Indexed: 11/09/2022]
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24
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Crivillers N, Osella S, Van Dyck C, Lazzerini GM, Cornil D, Liscio A, Di Stasio F, Mian S, Fenwick O, Reinders F, Neuburger M, Treossi E, Mayor M, Palermo V, Cacialli F, Cornil J, Samorì P. Large work function shift of gold induced by a novel perfluorinated azobenzene-based self-assembled monolayer. Adv Mater 2013; 25:432-436. [PMID: 22851440 DOI: 10.1002/adma.201201737] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2012] [Revised: 06/20/2012] [Indexed: 05/28/2023]
Abstract
Tune it with light! Self-assembled monolayers on gold based on a chemisorbed novel azobenzene derivative with a perfluorinated terminal phenyl ring are prepared. The modified substrate shows a significant work function increase compared to the bare metal. The photo-conversion between trans and cis isomers chemisorbed on the surface shows great perspectives for being an accessible route to tune the gold properties by means of light.
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Affiliation(s)
- Núria Crivillers
- ISIS & icFRC, Université de Strasbourg & CNRS, 8 allée Gaspard Monge, 67000 Strasbourg, France
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25
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Balandina T, W. van der Meijden M, Ivasenko O, Cornil D, Cornil J, Lazzaroni R, Kellogg RM, De Feyter S. Self-assembly of an asymmetrically functionalized [6]helicene at liquid/solid interfaces. Chem Commun (Camb) 2013; 49:2207-9. [DOI: 10.1039/c3cc37159j] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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26
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Crivillers N, Liscio A, Di Stasio F, Van Dyck C, Osella S, Cornil D, Mian S, Lazzerini GM, Fenwick O, Orgiu E, Reinders F, Braun S, Fahlman M, Mayor M, Cornil J, Palermo V, Cacialli F, Samorì P. Photoinduced work function changes by isomerization of a densely packed azobenzene-based SAM on Au: a joint experimental and theoretical study. Phys Chem Chem Phys 2011; 13:14302-10. [DOI: 10.1039/c1cp20851a] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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27
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Gerbaux P, De Winter J, Cornil D, Ravicini K, Pesesse G, Cornil J, Flammang R. Noncovalent Interactions between ([18]Crown-6)-Tetracarboxylic Acid and Amino Acids: Electrospray-Ionization Mass Spectrometry Investigation of the Chiral-Recognition Processes. Chemistry 2008; 14:11039-49. [DOI: 10.1002/chem.200801372] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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