15/03/2019

PhD in organic/organometallic chemistry for solar energy applications

This job offer has expired


  • ORGANISATION/COMPANY
    University of Lorraine / Institute Jean Barriol
  • RESEARCH FIELD
    ChemistrySolar chemistry
  • RESEARCHER PROFILE
    First Stage Researcher (R1)
  • APPLICATION DEADLINE
    03/05/2019 18:00 - Europe/Brussels
  • LOCATION
    France › Nancy
  • TYPE OF CONTRACT
    Temporary
  • JOB STATUS
    Full-time
  • HOURS PER WEEK
    40
  • OFFER STARTING DATE
    01/10/2019

The interest of organometallic complexes for optical applications such as luminescent materials, photosensitizers, photocatalysts, biomaterials or nanomaterials for optoelectronics continues to grow. The development of such applications involves the careful design of metal complexes with appropriate photophysical properties to ensure efficient light collection based on high absorption and wide band, exciton generation in the condensed phase and charge transfer in the excited state. Therefore, the properties of the excited state in terms of energy and lifetime determine the functional performance of molecules and, therefore, of nanostructures or devices composed of these molecular units.

The aim of the PhD program is to develop photosensitive compounds from low-cost and environmentally friendly metal complexes. While ruthenium complexes have been widely studied and used in many laboratory applications because of their ideal photophysical properties, ruthenium is a rare, toxic and expensive metal, which limits real industrial development. Our project aims to replace this metal with other metals such as iron, which is strategic in the search for low-cost devices and industrial processes that conserve resources. In particular, we are targeting the development of photosensitizers for the manufacture of dye solar cells (DSSCs).

However, replacing ruthenium with iron is a major challenge and is actively pursued. Indeed, unlike ruthenium, with iron complexes, we are witnessing an ultra-fast non-radiative deactivation of 1,3MLCT (metal-ligand charge transfer) states in the 5T2 quintuplet of low energy metal-centric energy, making the complexes unusable for applications in devices requiring the exploitation of the MLCT transition such as DSSCs.

In this context, the project aims to improve and control in a rational way the electronic and geometric properties of excited states of iron complexes in order to be able to apply them in solar cells. Therefore, a first objective is to establish generic rules and guidelines for the relationship between chemical structure and photophysical properties. This initial gain of knowledge from the thesis work is the key to rationalizing, in a second step, the properties of excited states for the manufacture of metal complexes applicable in photonic and energy conversion applications. To do this, the project is based on an interdisciplinary approach combining chemical synthesis, which is the central part of the thesis work, with theoretical calculation and ultrafast spectroscopy, up to the manufacture of solar devices such as DSSCs.

 

 

Benefits

working in a multidisciplinary environment ; synthesis, photophysics, computational chemistry and device assembly.

Become competent in the field of renewable energy development.

Eligibility criteria

The candidate should have received at least 12/20 Master1 and Master2 for the theoretical part

Selection process

The candidates with adequate profile and education level will be interviewed by a selection committee on May.

Offer Requirements

  • REQUIRED LANGUAGES
    ENGLISH: Good
    FRENCH: Basic

Skills/Qualifications

The candidate should have good theoretical and pratical levels in organic/organometallic chemistry and related characterization techniques.

Additional skills in solar cells fabrication (especially DSSCs) would be

appreciated but not mandatory.

The candidate must be open-minded and willing to work in a multidisciplinary environment.

Work location(s)
1 position(s) available at
University of Lorraine
France
Nancy
54506
Bvd des Aiguillettes, Faculty of Science

EURAXESS offer ID: 390293

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