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DYNAMOX SIGNED

Charge carrier dynamics in metal oxides

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EC-Contrib. €

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 DYNAMOX project word cloud

Explore the words cloud of the DYNAMOX project. It provides you a very rough idea of what is the project "DYNAMOX" about.

insulators    conversion    holes    hitherto    localization    defects    band    rely    solar    carriers    xas    ideal    probe    absorption    electronic    resolution    energy    experimental    wannier    pump    lt    elementary    bands    group    metal    uv    structural    transition    materials    resolved    orbitals    detect    oxides    charged    last    spectroscopy    transient    mapping    visible    final    proportion    carrier    charge    nature    time    tio2    pi    polaron    decades    emission    photoemission    electrons    ones    huge    despite    selective    tackle    recombine    attractive    tools    angle    exciton    excitons    issue    valence    conduction    created    trapped    emerged    probing    fourier    arpes    excitonic    map    ultrafast    population    photocatalysis    dynamics    evolve    evolution    excitations    2d    tm    small    nio    trapping    zno    hole    electron    atoms    gap    structure    transform    self    400nm    inaccessible    transfer    eventual    ray    nor    frenkel    xes    dimensional    generation   

Project "DYNAMOX" data sheet

The following table provides information about the project.

Coordinator
ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE 

Organization address
address: BATIMENT CE 3316 STATION 1
city: LAUSANNE
postcode: 1015
website: www.epfl.ch

contact info
title: n.a.
name: n.a.
surname: n.a.
function: n.a.
email: n.a.
telephone: n.a.
fax: n.a.

 Coordinator Country Switzerland [CH]
 Project website http://lsu.epfl.ch
 Total cost 2˙482˙305 €
 EC max contribution 2˙482˙305 € (100%)
 Programme 1. H2020-EU.1.1. (EXCELLENT SCIENCE - European Research Council (ERC))
 Code Call ERC-2015-AdG
 Funding Scheme ERC-ADG
 Starting year 2016
 Duration (year-month-day) from 2016-10-01   to  2021-09-30

 Partnership

Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 
1    ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE CH (LAUSANNE) coordinator 2˙482˙305.00

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 Project objective

Transition metal (TM) oxides (TiO2, ZnO, NiO) are large gap insulators that have emerged as highly attractive materials over the past two decades for applications in photocatalysis, solar energy conversion, etc., all of which rely on the generation of charge carriers, their evolution and their eventual trapping at defects or a self-trapped excitons. Despite the huge interest for such materials, the very nature of the elementary electronic excitations (Frenkel, Wannier or charge transfer exciton) is still not established, nor is the way these excitations evolve after being created: excitonic polaron or charged polaron. Finally, the electron and hole recombine is also not clearly established because of issue of defects and trapping. In order to tackle these issues, here we implement novel experimental tools that would provide us with hitherto inaccessible information about the charge carrier dynamics in TM oxides. Of importance is the ability to detect both the electrons and the holes. Some of these tools have been developed in the PI’s group: i) Ultrafast X-ray absorption spectroscopy (XAS) will provide information about the final metal d-orbitals and about the structural changes around it; ii) Ultrafast X-ray emission (XES) will provide information about hole states. While these two approaches are ideal element-selective ones, the localization of the electron at metal atoms represents a small proportion of the electron population. Therefore, ultrafast Angle-resolved photoemission spectroscopy (ARPES) will be used to map out the band structure changes in the system and the evolution of the conduction band electrons. Ultrafast 2-dimensional (2D) UV (<400nm) transient absorption spectroscopy allows the mapping of the time evolution of both the valence and the conduction bands by its ability to pump and probe above the band gap. Last, Fourier Transform visible 2D spectroscopy will allow the probing of gap state dynamics at high time resolution.

 Publications

year authors and title journal last update
List of publications.
2019 Majed Chergui
Ultrafast photoinduced energy and charge transfer
published pages: 9-37, ISSN: 1359-6640, DOI: 10.1039/c9fd00036d
Faraday Discussions 216 2019-10-07
2017 Edoardo Baldini, Tania Palmieri, Thomas Rossi, Malte Oppermann, Enrico Pomarico, Gerald Auböck, Majed Chergui
Interfacial Electron Injection Probed by a Substrate-Specific Excitonic Signature
published pages: 11584-11589, ISSN: 0002-7863, DOI: 10.1021/jacs.7b06322
Journal of the American Chemical Society 139/33 2019-10-07
2018 Edoardo Baldini, Tania Palmieri, Adriel Dominguez, Pascal Ruello, Angel Rubio, Majed Chergui
Phonon-Driven Selective Modulation of Exciton Oscillator Strengths in Anatase TiO 2 Nanoparticles
published pages: 5007-5014, ISSN: 1530-6984, DOI: 10.1021/acs.nanolett.8b01837
Nano Letters 18/8 2019-10-07
2017 Malte Oppermann, NataliaS. Nagornova, Aurelio Oriana, Edoardo Baldini, Lars Mewes, Benjamin Bauer, Tania Palmieri, Thomas Rossi, Frank van Mourik, Majed Chergui
The LOUVRE Laboratory: State-of-the-Art Ultrafast Ultraviolet Spectroscopies for Molecular and Materials Science
published pages: 288-294, ISSN: 0009-4293, DOI: 10.2533/chimia.2017.288
CHIMIA International Journal for Chemistry 71/5 2019-10-07
2017 Edoardo Baldini, Adriel Dominguez, Letizia Chiodo, Evgeniia Sheveleva, Meghdad Yazdi-Rizi, Christian Bernhard, Angel Rubio, Majed Chergui
Anomalous anisotropic exciton temperature dependence in rutile TiO 2
published pages: , ISSN: 2469-9950, DOI: 10.1103/PhysRevB.96.041204
Physical Review B 96/4 2019-10-07
2017 Alberto Crepaldi, Silvan Roth, Gianmarco Gatti, ChristopherA. Arrell, José Ojeda, Frank van Mourik, Philippe Bugnon, Arnaud Magrez, Helmuth Berger, Majed Chergui, Marco Grioni
Time-resolved ARPES at LACUS: Band Structure and Ultrafast Electron Dynamics of Solids
published pages: 273-277, ISSN: 0009-4293, DOI: 10.2533/chimia.2017.273
CHIMIA International Journal for Chemistry 71/5 2019-10-07
2017 James Budarz, Fabio G. Santomauro, M. Hannelore Rittmann-Frank, Chris J. Milne, Thomas Huthwelker, Daniel Grolimund, Jochen Rittmann, Dominik Kinschel, Thomas Rossi, Majed Chergui
Time-resolved Element-selective Probing of Charge Carriers in Solar Materials
published pages: 768-772, ISSN: 0009-4293, DOI: 10.2533/chimia.2017.768
CHIMIA International Journal for Chemistry 71/11 2019-10-07
2019 S Roth, A Crepaldi, M Puppin, G Gatti, D Bugini, I Grimaldi, T R Barrilot, C A Arrell, F Frassetto, L Poletto, M Chergui, A Marini, M Grioni
Photocarrier-induced band-gap renormalization and ultrafast charge dynamics in black phosphorus
published pages: 31001, ISSN: 2053-1583, DOI: 10.1088/2053-1583/ab1216
2D Materials 6/3 2019-09-02
2019 C. Svetina, R. Mankowsky, G. Knopp, F. Koch, G. Seniutinas, B. Rösner, A. Kubec, M. Lebugle, I. Mochi, M. Beck, C. Cirelli, J. Krempasky, C. Pradervand, J. Rouxel, G. F. Mancini, S. Zerdane, B. Pedrini, V. Esposito, G. Ingold, U. Wagner, U. Flechsig, R. Follath, M. Chergui, C. Milne, H. T. Lemke, C. David, P. Beaud
Towards X-ray transient grating spectroscopy
published pages: 574, ISSN: 0146-9592, DOI: 10.1364/ol.44.000574
Optics Letters 44/3 2019-09-02
2017 Rafael Abela, Paul Beaud, Jeroen A. van Bokhoven, Majed Chergui, Thomas Feurer, Johannes Haase, Gerhard Ingold, Steven L. Johnson, Gregor Knopp, Henrik Lemke, Chris J. Milne, Bill Pedrini, Peter Radi, Gebhard Schertler, Jörg Standfuss, Urs Staub, Luc Patthey
Perspective: Opportunities for ultrafast science at SwissFEL
published pages: 61602, ISSN: 2329-7778, DOI: 10.1063/1.4997222
Structural Dynamics 4/6 2019-07-10
2017 Joël Teuscher, Jan C. Brauer, Andrey Stepanov, Alicia Solano, Ariadni Boziki, Majed Chergui, Jean-Pierre Wolf, Ursula Rothlisberger, Natalie Banerji, Jacques-E. Moser
Charge separation and carrier dynamics in donor-acceptor heterojunction photovoltaic systems
published pages: 61503, ISSN: 2329-7778, DOI: 10.1063/1.4996409
Structural Dynamics 4/6 2019-09-04
2017 Hans Jakob Wörner, Christopher A. Arrell, Natalie Banerji, Andrea Cannizzo, Majed Chergui, Akshaya K. Das, Peter Hamm, Ursula Keller, Peter M. Kraus, Elisa Liberatore, Pablo Lopez-Tarifa, Matteo Lucchini, Markus Meuwly, Chris Milne, Jacques-E. Moser, Ursula Rothlisberger, Grigory Smolentsev, Joël Teuscher, Jeroen A. van Bokhoven, Oliver Wenger
Charge migration and charge transfer in molecular systems
published pages: 61508, ISSN: 2329-7778, DOI: 10.1063/1.4996505
Structural Dynamics 4/6 2019-06-13
2017 E. Baldini, L. Chiodo, A. Dominguez, M. Palummo, S. Moser, M. Yazdi-Rizi, G. Auböck, B.P.P. Mallett, H. Berger, A. Magrez, C. Bernhard, M. Grioni, A. Rubio, M. Chergui
Strongly bound excitons in anatase TiO2 single crystals and nanoparticles
published pages: , ISSN: 2041-1723, DOI: 10.1038/s41467-017-00016-6
Nature Communications 8/1 2019-06-13
2018 Thomas J. Penfold, Jakub Szlachetko, Fabio G. Santomauro, Alexander Britz, Wojciech Gawelda, Gilles Doumy, Anne Marie March, Stephen H. Southworth, Jochen Rittmann, Rafael Abela, Majed Chergui, Christopher J. Milne
Revealing hole trapping in zinc oxide nanoparticles by time-resolved X-ray spectroscopy
published pages: , ISSN: 2041-1723, DOI: 10.1038/s41467-018-02870-4
Nature Communications 9/1 2019-06-13
2018 Edoardo Baldini, Tania Palmieri, Enrico Pomarico, Gerald Auböck, Majed Chergui
Clocking the Ultrafast Electron Cooling in Anatase Titanium Dioxide Nanoparticles
published pages: 1241-1249, ISSN: 2330-4022, DOI: 10.1021/acsphotonics.7b00945
ACS Photonics 5/4 2019-06-13

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