Petra Rudolf | |
---|---|
Born | 1957 |
Nationality | Germany, Italy |
Citizenship | Germany, Italy |
Education | PhD in Physics (1995), Facultés Universitaires Notre-Dame de la Paix |
Alma mater | University of Namur |
Spouse | Valerio Cugia di Sant'Orsola |
Scientific career | |
Fields | Experimental solid state physics, surface science, nanoscience, x-ray photoelectron spectroscopy, organic thin films, molecular switches and motors |
Institutions | University of Groningen, Groningen, Netherlands |
Thesis | "Structural, vibrational and electronic properties of ultrathin C60 films on metallic substrates" (1995) |
Doctoral advisor | Roland Caudano |
Website | www |
Petra Rudolf (born 1957) is a German and Italian solid state physicist. As of 2003, Rudolf has been a professor at the Materials Science Centre (now Zernike Institute for Advanced Materials), University of Groningen, Netherlands.
Born in Munich, Rudolf moved to Italy to complete high school and to receive her MSc degree (magna cum laude) in physics at the Sapienza University of Rome, Italy. [1] Following, she worked at the National Surface Science Laboratory in Trieste for five years, interrupted two times to work on the newly discovered fullerenes at Bell Labs, USA. In 1995, she received her PhD (magna cum laude) in physics under the supervision of Roland Caudano at Facultés Universitaires Notre-Dame de la Paix, Namur, Belgium. After several research positions in Namur, she became professor in Experimental Solid State Physics at the University of Groningen in 2003. [1]
In addition to her research, Rudolf also has been active in spreading knowledge [2] [3] on how unconscious biases impact careers in science, and how to mitigate that influence through advocating positive action programs. Efforts by Rudolf have been pivotal in supporting the Rosalind Franklin Fellowship program at University of Groningen, which was installed by then Dean Douwe Wiersma in 2002 and recognized by the 2018 Diversity Award from The Netherlands Physics Association. [4]
Rudolf has been elected to offices in professional organizations. She was President of the Belgian Physical Society from 2000 to 2001 and President of the European Physical Society from 2019 to 2020. [5] [6] She is currently the chair of the EPS Equal Opportunities Committee. [7]
Petra Rudolf's research focuses on surface physics of organic thin films, molecular motors, nanocomposites, as well as 2D materials, to gain a better understanding of the physical phenomena that they display and for potential technological innovations. [8]
Rudolf's expertise has been on the application of various surface sensitive spectroscopic measurement techniques (x-ray and ultraviolet photoemission spectroscopy, electron energy loss spectroscopy, angle-resolved photoemission spectroscopy, Auger electron spectroscopy, inverse photoemission spectroscopy, X-ray absorption spectroscopy, as well as low energy- and time-resolved electron diffraction) to study the various materials systems.
While these techniques have been used by Rudolf and her group to study a wide variety of materials, Rudolf has always maintained a special interest in graphene-based materials and, more recently, also in 2D materials . [9] [10] [11] [12] [13] Graphene-based materials have great potential in revolutionizing today's electronics industry and making it more sustainable, and Rudolf's lab has contributed successfully to finding better ways to produce 2D materials. [14] [15] [16]
More recently, Rudolf has also been devoted to developing pillared graphene materials for spintronics and hydrogen storage applications. Her interests span much further than carbon-based materials however, with recent successes with germanane-based and other materials which show promising devices and catalysis applications. [17] [18] [19] [20] [21]
As of 2019, Rudolf's work on synthetic molecular switches and molecular machines for the production of functional surfaces, in collaboration with colleagues, such as Ben Feringa, is also ongoing. [22] [23]
Petra Rudolf is a Fellow of the American Physical Society, [24] awarded "for explorations of fullerenes, nanotubes, graphite, and graphene, as well as light-driven synthetic molecular motors". [25] She is also a Fellow of the Institute of Physics and an honorary member of the Italian and the Dutch Physical Society.
In 2007, Rudolf and her research group was one of the winners of the EU Descartes Prize for their work on molecular machines, [26] [27] as part of the SynNanoMotor consortium, a collaborative partnership of researchers from countries including France, Italy and Scotland. This work [28] was pivotal in building early synthetic nanomachines.
In 2013, Rudolf received the royal decoration and was appointed Officer of the Order of Orange-Nassau. [29] [30] [31]
In 2016 Rudolf was elected Member of the German National Academy of Science and Engineering (acatech). [32] She was elected to the Academia Europaea in 2021. [33]
Graphene is a carbon allotrope consisting of a single layer of atoms arranged in a honeycomb planar nanostructure. The name "graphene" is derived from "graphite" and the suffix -ene, indicating the presence of double bonds within the carbon structure.
James Mitchell Tour is an American chemist and nanotechnologist. He is a Professor of Chemistry, Professor of Materials Science and Nanoengineering at Rice University in Houston, Texas.
Surface-enhanced Raman spectroscopy or surface-enhanced Raman scattering (SERS) is a surface-sensitive technique that enhances Raman scattering by molecules adsorbed on rough metal surfaces or by nanostructures such as plasmonic-magnetic silica nanotubes. The enhancement factor can be as much as 1010 to 1011, which means the technique may detect single molecules.
Graphene nanoribbons are strips of graphene with width less than 100 nm. Graphene ribbons were introduced as a theoretical model by Mitsutaka Fujita and coauthors to examine the edge and nanoscale size effect in graphene.
A topological insulator is a material whose interior behaves as an electrical insulator while its surface behaves as an electrical conductor, meaning that electrons can only move along the surface of the material.
Rodney S. "Rod" Ruoff is an American physical chemist and nanoscience researcher. He is one of the world experts on carbon materials including carbon nanostructures such as fullerenes, nanotubes, graphene, diamond, and has had pioneering discoveries on such materials and others. Ruoff received his B.S. in chemistry from the University of Texas at Austin (1981) and his Ph.D. in chemical physics at the University of Illinois-Urbana (1988). After a Fulbright Fellowship at the MPI fuer Stroemungsforschung in Goettingen, Germany (1989) and postdoctoral work at the IBM T. J. Watson Research Center (1990–91), Ruoff became a staff scientist in the Molecular Physics Laboratory at SRI International (1991–1996). He is currently UNIST Distinguished Professor at the Ulsan National Institute of Science and Technology (UNIST), and the director of the Center for Multidimensional Carbon Materials, an Institute for Basic Science Center located at UNIST.
In physics, the plasmaron was proposed by Lundqvist in 1967 as a quasiparticle arising in a system that has strong plasmon-electron interactions. In the original work, the plasmaron was proposed to describe a secondary peak in the photoemission spectral function of the electron gas. More precisely it was defined as an additional zero of the quasi-particle equation . The same authors pointed out, in a subsequent work, that this extra solution might be an artifact of the used approximations:
We want to stress again that the discussion we have given of the one-electron spectrum is based on the assumption that vertex corrections are small. As discussed in the next section recent work by Langreth [29] shows that vertex corrections in the core electron problem can have a quite large effect on the form of satellite structures, while their effect on the quasi particle properties seems to be small. Preliminary investigations by one of us (L.H.) show similar strong vertex effects on the conduction band satellite. The details of the plasmaron structure should thus not be taken very seriously.
Silicene is a two-dimensional allotrope of silicon, with a hexagonal honeycomb structure similar to that of graphene. Contrary to graphene, silicene is not flat, but has a periodically buckled topology; the coupling between layers in silicene is much stronger than in multilayered graphene; and the oxidized form of silicene, 2D silica, has a very different chemical structure from graphene oxide.
Bilayer graphene is a material consisting of two layers of graphene. One of the first reports of bilayer graphene was in the seminal 2004 Science paper by Geim and colleagues, in which they described devices "which contained just one, two, or three atomic layers"
Transition-metal dichalcogenide (TMD or TMDC) monolayers are atomically thin semiconductors of the type MX2, with M a transition-metal atom (Mo, W, etc.) and X a chalcogen atom (S, Se, or Te). One layer of M atoms is sandwiched between two layers of X atoms. They are part of the large family of so-called 2D materials, named so to emphasize their extraordinary thinness. For example, a MoS2 monolayer is only 6.5 Å thick. The key feature of these materials is the interaction of large atoms in the 2D structure as compared with first-row transition-metal dichalcogenides, e.g., WTe2 exhibits anomalous giant magnetoresistance and superconductivity.
In materials science, the term single-layer materials or 2D materials refers to crystalline solids consisting of a single layer of atoms. These materials are promising for some applications but remain the focus of research. Single-layer materials derived from single elements generally carry the -ene suffix in their names, e.g. graphene. Single-layer materials that are compounds of two or more elements have -ane or -ide suffixes. 2D materials can generally be categorized as either 2D allotropes of various elements or as compounds.
Bernard Lucas "Ben" Feringa is a Dutch synthetic organic chemist, specializing in molecular nanotechnology and homogeneous catalysis.
Jürgen P. Rabe is a German physicist and nanoscientist.
A rapidly increasing list of graphene production techniques have been developed to enable graphene's use in commercial applications.
Hrvoje Petek is a Croatian-born American physicist and the Richard King Mellon Professor of Physics and Astronomy, at the University of Pittsburgh, where he is also a professor of chemistry.
Alessandra Lanzara is an Italian-American physicist and the distinguished Charles Kittel Professor of physics at the University of California, Berkeley since 2002, where she leads an experimental materials physics group. She is the founding director of Center for Sustainable Innovation at UCB and the co-founder of Quantum Advanced Detection (QUAD) LLC.
Nathalie Helene Katsonis is a Professor of Active Molecular Systems at the Stratingh Institute for Chemistry, University of Groningen. In 2016 she was awarded the Royal Netherlands Chemical Society Gold Medal.
In physics and chemistry, photoemission orbital tomography is a combined experimental / theoretical approach which was initially developed to reveal information about the spatial distribution of individual one-electron surface-state wave functions and later extended to study molecular orbitals. Experimentally, it uses angle-resolved photoemission spectroscopy (ARPES) to obtain constant binding energy photoemission angular distribution maps. In their pioneering work, Mugarza et al. in 2003 used a phase-retrieval method to obtain the wave function of electron surface states based on ARPES data acquired from stepped gold crystalline surfaces; they obtained the respective wave functions and, upon insertion into the Schrödinger equation, also the binding potential. More recently, photoemission maps, also known as tomograms, have been shown to reveal information about the electron probability distribution in molecular orbitals. Theoretically, one rationalizes these tomograms as hemispherical cuts through the molecular orbital in momentum space. This interpretation relies on the assumption of a plane wave final state, i.e., the idea that the outgoing electron can be treated as a free electron, which can be further exploited to reconstruct real-space images of molecular orbitals on a sub-Ångström length scale in two or three dimensions. Presently, POT has been applied to various organic molecules forming well-oriented monolayers on single crystal surfaces or to two-dimensional materials.
Maria C. Asensio is a Spanish-Argentinian physical chemist, academic, researcher, and author. She is a Full Research Professor at the Materials Science Institute of Madrid (ICMM) of the Spanish National Research Council (CSIC) and Chair of the CSIC Research Associated Unit-MATINÉE created between the ICMM and the Institute of Materials Science (ICMUV) of the Valencia University.
Nano Angle-Resolved Photoemission Spectroscopy (Nano-ARPES), is a variant of the experimental technique ARPES. It has the ability to precisely determine the electronic band structure of materials in momentum space with submicron lateral resolution. Due to its demanding experimental setup, this technique is much less extended than ARPES, widely used in condensed matter physics to experimentally determine the electronic properties of a broad range of crystalline materials. Nano-ARPES can access the electronic structure of well-ordered monocrystalline solids with high energy, momentum, and lateral resolution, even if they are nanometric or heterogeneous mesoscopic samples. Nano-ARPES technique is also based on Einstein's photoelectric effect, being photon-in electron-out spectroscopy, which has converted into an essential tool in studying the electronic structure of nanomaterials, like quantum and low dimensional materials.