02/04/2021
The Human Resources Strategy for Researchers

Phd contract in the field of Chemistry financed for three years by the University of Clermont Auvergne

This job offer has expired


  • ORGANISATION/COMPANY
    Université Clermont Auvergne
  • RESEARCH FIELD
    Chemistry
  • RESEARCHER PROFILE
    First Stage Researcher (R1)
  • APPLICATION DEADLINE
    23/05/2021 00:00 - Europe/Brussels
  • LOCATION
    France › AUBIERE
  • TYPE OF CONTRACT
    Temporary
  • JOB STATUS
    Full-time
  • HOURS PER WEEK
    35
  • OFFER STARTING DATE
    01/10/2021
  • REFERENCE NUMBER
    SF-CD-2021-002

OFFER DESCRIPTION

Synthesis by reactive sputtering of Bismuth-based photocatalysts for environment and solar fuel production

Photocatalytic materialsaremore and more extended in environment (pollutants photodegradation in water, in air...) and energy domain(production of new solar fuels). Recently, Bismuth-based materials gained huge attention because of their advantages such as low toxicity, low solubility and corrosion resistance in aqueous medium.Large range of stoichiometry is exploredwith various cations (Bi2O3, BiVO4, Bi2WO6, ...)and anions (BiOF, BiOCl...). At ICCF, the MATEPP group (Materials and Plasma Processes)is working from several years on photocatalytic materials synthesized by reactive sputtering. This very versatile plasma process allows controllingthe content of cations (by the choice of sputtered targets) and anions (by the injected reactive gases). Indeed, by tuning the O2and CF4gas during Bismuth target sputtering, we succeed to form Bismuth oxides and oxifluoride.To enlarge range of photocatalytic materials, we would now add a second target (Vanadium, Tungsten...) in Ar/O2atmosphere to reach more complex stoichiometries, such asBiVO4orBi2WO6.These later present an optic absorption into visible domain;they are particularly interesting for pollutants photodegradation in water and H2generation by photolyse.During its thesis, the PhD student will investigate the reactive sputtering process with two targets (Bi and V or W) in Ar/O2atmosphere, especially by optical emission spectroscopy and thanks to Berg model, in order to understand how to control the content of each elements (cations and anions). The PhD student will be in charge ofthin films characterization thanks to numerous techniques available at ICCF (IR andRamanspectroscopies, XRD...), at UCA (XPS, electronic microscopies...), or in collaboration (Ion beam analysis at CEMHTI in Orléans). He will link this structural and microstructural characterization of materials with their optical (determined by ellipsometry and UV-visible absorption) and photocatalytical properties (photodegradation of methyl-orange into water and H2generation by photolyse).Ideally, the candidate should have a Master degreeinMaterials Science or Material Chemistry. A first experience in plasma processeswould be appreciated. She/he should be highly motivated and enjoy working in a team while demonstrating curiosity, autonomy, dynamism and rigor.The candidate should also have good communication skills in French and English (oral and written).The application form must contain a Curriculum Vitae, a motivation letter, a copy of the master diploma including rank and marks and eventual reference letters.

More Information

Offer Requirements

  • REQUIRED EDUCATION LEVEL
    Chemistry: Master Degree or equivalent
Work location(s)
1 position(s) available at
Chemistry Institute of Clermont-Ferrand (ICCF)
France
Région Auvergne Rhône-Alpes
AUBIERE
63178
Campus Universitaire des Cézeaux TSA 60026 - CS 60026 24, Avenue Blaise Pascal

Open, Transparent, Merit based Recruitment procedures of Researchers (OTM-R)

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EURAXESS offer ID: 622926

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