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Charles Cornet

Prof. Dr., Head of FOTON-OHM (Optoelectronics, Heteroepitaxy and Materials) research team
30
Documents
Identifiants chercheurs

Présentation

### **Research projects** \*2023-2027: PEPR Hydrogène décarboné - France 2030: “Robust, cost efficient aNd AUTonomous PhotoelectrochemIcaL cells with III-V thin films on Si for practical hydrogen prodUction. (NAUTILUS)”: coordinator. \*2022-2026: PEPR Electronique - France 2030: “Optical Frequency Combs On a Chip (OFCOC)”: contributor, growth. \*2021-2025: EU COST action: “European Network for Innovative and Advanced Epitaxy (OPERA)”: secondary proposer, Management committee member. \*2021-2025: ANR PRC project “collaborative”: “PhysIcAl properties of hybrid semimetal/semicoNductor III-V/Si maTerials (PIANIST)”: coordinator, growth, simulation, optoelectronic properties. \*2021-2025: ANR PRC project “collaborative”: “Nucleation and growth of III-V on Si explored in situ (NUAGES)”: local coordinator, growth, simulation. \*2021-2025: PIA project Equipex NanoFutur: FOTON local scientific coordinator. \*2021-2024: ANR PRC project “collaborative”: “Light COnveRsioN by photoinduced‐electrochemiluminescence (LICORN)”: contributor, growth. \*2020-2023: ANR PRCE project “collaborative with a company”: “High-Efficiency Epitaxial CIGS-Silicon Tandem Solar Cell (EPCIS)”: contributor, growth. \*2019-2022: ANR PRC project “collaborative”: “Improvement of photovoltaic Conversion Efficiency by acting on thermalization MecANisms (ICEMAN)”: contributor, growth. \*2018-2021: ANR young researcher grant (projet jeune chercheur ANR): “secOnd oRder oPtical pHenomEna in galliUm phosphide microdisks on Silicon (ORPHEUS)”: contributor, growth and simulation. \*2015-2018: ANR PRC project “collaborative”: “Advanced aNalysis of III-V/Si nucleaTIon for highly integrated PhOtonic Devices (ANTIPODE)”: coordinator, growth and simulation. \*2014-2017: Labex Cominlabs project: “3D optical manycores”: contributor. \*2012-2015: ANR “blanc” project: “Epitaxial integration of III-V optoelectronic devices on silicon (OPTOSI)”: project co-writer, contributor. \*2012-2014: ANR young researcher grant (projet jeune chercheur ANR): “Silicon photonics with diluted nitride coherent integration (SINPHONIC)”: project main writer, coordinator, WP leader, contributor. \*2011-2014: National (3) and international (1) beam time allocation at European Synchrotron Radiation Facility (ESRF) on CRG lines D2AM and BM-32. \*2011-2014: ANR PROGELEC project: “Monolithic integration of high efficiency III-V solar cells on silicon (MENHIRS)”: project co-writer, contributor and member of the administrative and financial staff. \*2011-2012: C’nano NANOTRANS project (C’nano Nord-ouest): “dilute nitride quantum dots: relationship between morphology, electronic structure and optical properties”: project co-writer, joint coordinator, contributor. \*2004-2009: FP6 European network of excellence on Self-Assembled semiconductor Nanostructures for new Devices in photonics and Electronics (SANDiE): contributor. \*2004-2008: FP6 European Network of Excellence on Photonic Integrated Components and Circuits (EPIXNET): contributor. ### **Awards** \*Vebleo Fellow (2021). \* Innovation award of the “pôle de compétitivité Images et Réseaux”, for the SINPHONIC ANR project (2013). \* Young researcher award of “Région Bretagne” (2007) \* Best Ph. D. prize of the SANDiE European network of excellence (2006) ### **Short CV** - 2020-present: INSA, Rennes, France Position : Professor at INSA Rennes, Institut FOTON (CNRS), head of the “[Optoelectronics, Heteroepitaxy and Materials (OHM) research group](http://foton.cnrs.fr/v2016/spip.php?rubrique33)”. Personal Research field: Growth, structural, electronic and optical properties of III-V/Si-based light emitters/absorbers on silicon for photonics and energy materials applications. Solar hydrogen production with photo-electrochemical cells. - 2007-2020: INSA, Rennes, France Position : “Maître de Conférences” (Ass. Prof., HDR), at FOTON CNRS Laboratory. Co-head of the “photonics on silicon” research program. Since 2017, head of the “[Optoelectronics, Heteroepitaxy and Materials (OHM) research group](http://foton.cnrs.fr/v2016/spip.php?rubrique33)”. Personal Research field: Growth, structural, electronic and optical properties of GaP-based light emitters/absorbers on silicon for photonics and energy materials applications. - 2006–2007: INSA Rennes, France Position: Post-doctoral fellow with teaching activities at FOTON CNRS Laboratory. Research topic: Growth and characterization of InAs/GaP quantum dots. - 2003–2006: INSA, Rennes (France), TU Berlin (Germany) and KU Leuven (Belgium) Position: Physics PhD Thesis on “electronic, optical and dynamic properties of self-organized and coupled quantum dots on InP substrate” at INSA-Rennes (France) in collaboration with TU Berlin, KU Leuven and TU Eindhoven within European network of excellence SANDIE.PhD Thesis supervised by Pr. J. Even. Research topic: Electronic, optical and dynamic properties of self-organized and coupled quantum dots on InP substrate. - 2003: “Diplôme d’Etudes Approfondies” (DEA = MSc2 degree) of Physics: light and matter interaction, at University of Rennes 1,France. Highest distinction, ranked first. Position: Master 2 training period at LENS laboratory (“Laboratoire d’Etude des Nanostructures à Semiconducteurs”). Research topic: Absorption measurements and simulations of InAs/InP (113)B quantum dots. - 2001-2002: “Agrégation de Physique” passed at Ecole Normale Supérieure (ENS – Paris, France). - 2001: Center for Quantum Electronics, Hanoi (Vietnam) Position: Master 1 training period at CQE laboratory. Research topic: Time-resolved spectroscopy of tunable dye lasers - …-2000: Paris-Sud University, Orsay (France) “Licence”, “Maîtrise” and “Magistère” (BSc and MSc1 degrees) of fundamental physics at Paris-Sud University (Université Paris XI – Orsay, France) Position: BSc training period at “Laboratory of the linear accelerator” (particle physics). Research topic: Analysis of DIRC performances in the frame of the Babar experiment ### **Teaching Activities** \* Energetics and environment: from nuclear to renewable energies. \* Applied quantum mechanics (quantum mechanic for beginners). \* Thermodynamics.

Compétences

-Materials for Photonics and Energy / Photovoltaics and Solar Hydrogen -III-V semiconductors and Silicon -Physics of semiconductors: modeling of nanostructures, bandstructures, bandlineups -Optical and structural properties of semiconductors compounds and devices -Epitaxy and Ultra-High Vacuum crystal growth techniques -Atomic Force Microscopy (AFM) and related near-field techniques -Surface and volume diffraction (RHEED, XRD)

Publications

andrea-balocchi
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Effects of nitrogen incorporation and thermal annealing on the optical and spin properties of GaPN dilute nitride alloys

Miguel Angel Gonzalez Balanta , P. B. Alves de Oliveira , H. Albalawi , Yara Galvão Gobato , Helder Vinícius Avanço Galeti
Journal of Alloys and Compounds, 2020, 814, pp.152233. ⟨10.1016/j.jallcom.2019.152233⟩
Article dans une revue hal-02351836v1
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Electronic wave functions and optical transitions in (In,Ga)As/GaP quantum dots

Cédric Robert , Katiane Pereira da Silva , Mikhail O Nestoklon , Maria Isabel Alonso , Pascal Turban
Physical Review B, 2016, 94 (7), pp.075445. ⟨10.1103/PhysRevB.94.075445⟩
Article dans une revue hal-01362484v1
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Effect of the nitrogen incorporation and fast carrier dynamics in (In,Ga)AsN/GaP self-assembled quantum dots

Jean-Philippe Gauthier , Cédric Robert Robert , Samy Almosni , Yoan Léger , Mathieu Perrin
Applied Physics Letters, 2014, 105 (24), pp.243111. ⟨10.1063/1.4904939⟩
Article dans une revue hal-01114385v1

Structural and optical properties of AlGaP confinement layers and InGaAs quantum dot light emitters onto GaP substrate: Towards photonics on silicon applications

Cédric Robert Robert , Thanh Tra Nguyen , Antoine Létoublon , Mathieu Perrin , C. Cornet
Thin Solid Films, 2013, 541, pp.87-91
Article dans une revue hal-02050606v1

Evaluation of InGaPN and GaAsPN materials lattice-matched to Si for multi-junction solar cells

Samy Almosni , Cédric Robert Robert , Thanh Tra Nguyen , Charles Cornet , Antoine Létoublon
Journal of Applied Physics, 2013, 113 (12), pp.123509. ⟨10.1063/1.4798363⟩
Article dans une revue hal-00918663v1
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Structural and optical properties of (In,Ga)As/GaP quantum dots and (GaAsPN/GaPN) diluted-nitride nanolayers coherently grown onto GaP and Si substrates for photonics and photovoltaics applications

Olivier Durand , Cédric Robert Robert , Thanh Tra Nguyen , Samy Almosni , Thomas Quinci
Proceedings of SPIE, the International Society for Optical Engineering, 2013, Quantum sensing and nanophotonic devices X, 8631, pp.863126. ⟨10.1117/12.2012670⟩
Article dans une revue hal-00842763v1
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Structural and optical analyses of GaP/Si and (GaAsPN/GaPN)/GaP/Si nanolayers for integrated photonics on silicon

Thanh Tra Nguyen , Cédric Robert Robert , Weiming Guo , Antoine Létoublon , Charles Cornet
Journal of Applied Physics, 2012, 112 (5), pp.053521. ⟨10.1063/1.4751024⟩
Article dans une revue hal-00726722v1

Electronic, optical and structural properties of (In,Ga)As/GaP quantum dots

Cédric Robert Robert , Charles Cornet , Pascal Turban , Thanh Tra Nguyen , Mikhail O. Nestoklon
Physical Review B: Condensed Matter and Materials Physics (1998-2015), 2012, 86, pp.205316. ⟨10.1103/PhysRevB.86.205316⟩
Article dans une revue hal-00726726v1

Electroluminescence of InGaAs/GaP quantum dots and band engineering of AlGaP/GaP laser injection layers

Ronan Tremblay , Yong Huang , Jean-Philippe Gauthier , Rozenn Piron , Alexandre Beck
Compound Semiconductor Week 2015 (CSW 2015), Jun 2015, Santa-Barbara, United States
Communication dans un congrès hal-01147506v1

Structural, electronic properties and carrier dynamics in InGaAs(N)/GaP quantum dots

Charles Cornet , Jean-Philippe Gauthier , Cédric Robert Robert , Samy Almosni , Yoan Léger
18th European Molecular Beam Epitaxy Workshop (Euro-MBE 2015), Mar 2015, Canazei, Italy
Communication dans un congrès hal-01147481v1

Composition dependent nature of the fundamental optical transition in (In,Ga)As/GaP quantum dots

Cédric Robert Robert , Charles Cornet , Thanh Tra Nguyen , M. Nestoklon , Katiane Pereira da Silva
26th International Conference on Indium Phosphide and Related Materials (IPRM 2014), May 2014, Montpellier, France. pp.Th-B1-2, ⟨10.1109/ICIPRM.2014.6880555⟩
Communication dans un congrès hal-01114877v1

gamma-X competition for the optical transition of (In,Ga)As(N)/GaP quantum dots (QDs)

Cédric Robert Robert , Charles Cornet , Olivier Durand , K. Pereira da Silva , Pascal Turban
European Materials research society meeting EMRS 2013, May 2013, Strasbourg, France
Communication dans un congrès hal-00918730v1

Nature of the optical transition in (In,Ga)As(N)/GaP quantum dots (QDs): effect of QD size, indium composition and nitrogen incorporation

Cédric Robert Robert , Charles Cornet , K. Pereira da Silva , Pascal Turban , S. Mauger
Compound semiconductors week, IPRM, 2013, May 2013, Kobe, Japan
Communication dans un congrès hal-00918734v1

Γ-X competition in (In,Ga)As/GaP quantum dots (QDs) : effect of QD size and Indium composition

Cédric Robert Robert , Charles Cornet , Pascal Turban , S. Mauger , Thanh Tra Nguyen
euro-MBE conference, Mar 2013, Levi, Finland
Communication dans un congrès hal-00918669v1

Intégration optique par croissance directe de nanostructures III-V sur silicium

Charles Cornet , Cédric Robert Robert , Thanh Tra Nguyen , Yanping Wang , Samy Almosni
14èmes Journées Nano, Micro et Optoélectronique (JNMO), May 2013, Evian, France
Communication dans un congrès hal-00918745v1

GaAsPN compounds for Si photonics

Charles Cornet , Cédric Robert Robert , Samy Almosni , Thanh Tra Nguyen , Thomas Quinci
International Workshop "Silicon & Photonics", Jun 2013, Rennes, France
Communication dans un congrès hal-00918743v1

Carrier lifetime and relaxation dynamics in (In)GaAs/GaP quantum dots

Cédric Robert Robert , Mathieu Perrin , Charles Cornet , Philippe Barate , Andrea Balocchi
International Symposium on Physics and Applications of Laser Dynamics IS-PALD, Oct 2013, Paris, France
Communication dans un congrès hal-00918752v1

Optical and structural properties of (In,Ga)As/GaP quantum dots : C2 to C2v symmetry transition during the ripening process

Cédric Robert Robert , Charles Cornet , Pascal Turban , Thanh Tra Nguyen , Sylvain Tricot
international conference on MBE, 2012, Nara, Japan
Communication dans un congrès hal-00726776v1

Développement d'un laser sur silicium dans l'approche pseudomorphique

Cédric Robert Robert , Charles Cornet , Thanh Tra Nguyen , Mathieu Perrin , Antoine Létoublon
Journées nationales de l'optique guidée, 2012, Lyon, France
Communication dans un congrès hal-00788434v1

Structural and optical properties of AlGaP confinement layers and InGaAs quantum dots light emitters onto GaP substrate: towards photonics on silicon application

Cédric Robert Robert , Thanh Tra Nguyen , Mathieu Perrin , Charles Cornet , Antoine Létoublon
European Materials Research Society Spring Meeting 2012 (E-MRS Spring 2012), May 2012, Strasbourg, France. pp.87-91, ⟨10.1016/j.tsf.2012.10.134⟩
Communication dans un congrès hal-00918657v1
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Theoretical and experimental study of (In,Ga)As/GaP quantum dots

Cédric Robert Robert , Thanh Tra Nguyen , Charles Cornet , Pascal Turban , Mathieu Perrin
International Conference on Superlattices, Nanostructures, and Nanodevices (ICSNN 2012), Jul 2012, Dresden, Germany. pp.643, ⟨10.1186/1556-276X-7-643⟩
Communication dans un congrès hal-00726861v1

coherent integration of photonics on silicon through the growth of GaP/Si

Thanh Tra Nguyen , Cédric Robert , Charles Cornet , Weiming Guo , Antoine Létoublon
Technical Meeting of Sandie European Network of Excellence, 2012, Berlin, Germany
Communication dans un congrès hal-00788526v1

(In,Ga)As/GaP quantum dots for monolithic integration on silicon

Cédric Robert Robert , Thanh Tra Nguyen , Charles Cornet , Pascal Turban , Mathieu Perrin
31st International Conference on the Physics of Semiconductors (ICPS 2012), Jul 2012, Zurich, Switzerland
Communication dans un congrès hal-00726878v1

Quantitative study of microtwins in GaP/Si thin film and GaAsPN quantum wells grown on silicon substrates

Thanh Tra Nguyen , Cédric Robert Robert , Emmanuel Giudicelli , Antoine Létoublon , Charles Cornet
17th International Conference on Molecular Beam Epitaxy (MBE 2012), Sep 2012, Nara, Japan. pp.25-28, ⟨10.1016/j.jcrysgro.2012.11.046⟩
Communication dans un congrès hal-00788399v1

Electroluminescence de boites quantiques InGaAs/GaP et ingénérie de bande des couches d’injection laser AlGaP/GaP

Ronan Tremblay , Yong Huang , Jean-Philippe Gauthier , Rozenn Piron , Alexandre Beck
Optique Bretagne 2015 - 35ème Journées Nationales d'Optique Guidée (JNOG'35), Jul 2015, Rennes, France
Poster de conférence hal-01497243v1

Carrier injection in GaP-based laser waveguides and dilute nitrides gain medium

Jean-Philippe Gauthier , Cédric Robert Robert , Samy Almosni , Charles Cornet , Yoan Léger
18th European Molecular Beam Epitaxy Workshop (Euro-MBE 2015), Mar 2015, Canazei, Italy. 2015
Poster de conférence hal-01147468v1

Carrier capture and relaxation in GaAsPN/GaP quantum wells

Cédric Robert Robert , Mathieu Perrin , Laurent Pedesseau , Yoan Léger , Philippe Barate
32nd International Conference on the Physics of Semiconductors (ICPS 2014), Aug 2014, Austin, United States. 2014
Poster de conférence hal-01115282v1

GaAsPN alloys for optoelectronics on Silicon

Hélène Carrère , Andrea Balocchi , Thierry Amand , Cédric Robert Robert , Mathieu Perrin
Compound Semiconductor Week 2014, May 2014, Montpellier, France. 2014
Poster de conférence hal-01115268v1

Electrical injection in GaP-based laser waveguides and active areas

Jean-Philippe Gauthier , Cédric Robert Robert , Samy Almosni , Charles Cornet , Yoan Léger
26th International Conference on Indium Phosphide and Related Materials (IPRM 2014), May 2014, Montpellier, France. IEEE, 26th International Conference on Indium Phosphide and Related Materials (IPRM 2014), pp.P23, 2014, ⟨10.1109/ICIPRM.2014.6880545⟩
Poster de conférence hal-01114889v1

Nature of the optical transition in (In,Ga)As(N)/GaP quantum dots (QDs): effect of QD size, indium composition and nitrogen incorporation

Cédric Robert Robert , Charles Cornet , K. Pereira da Silva , Pascal Turban , S. Mauger
25th International Conference on Indium Phosphide and Related Materials (IPRM2013), May 2013, Kobe, Japan. IEEE (ISSN: 1092-8669 ; e-ISBN: 978-1-4673-6131-6 ; Print ISBN: 978-1-4673-6130-9), IEEE Xplore Digital Library, pp.1-2, 2013, International Conference on Indium Phosphide and Related Materials (IPRM), 2013. ⟨10.1109/ICIPRM.2013.6562587⟩
Poster de conférence hal-00918662v1