1 PhD position (ANR)
Spontaneous organization of mineral nanoparticles
The recent expansion of the field of “chimie douce” (soft chemistry) has led to a wide variety of anisotropic nanoparticles of all kinds of nature and shape (nanotubes, nanosheets, nanorods, etc.). These nanoparticles can often be dispersed in water or in organic solvents as colloidal suspensions. Quite often, these suspensions spontaneously organize in liquid-crystalline phases of different types (nematic, lamellar, columnar …).1,2 Moreover, these suspensions can also be destabilized to produce aggregates with well-defined structures.3-5 These two kinds of phenomena are very useful to manipulate and organize nanoparticles in order to obtain original physical properties. For example, by applying electric or magnetic fields, we can align anisotropic nanoparticles and even sometimes order them on a lattice.
At this moment, we have suspensions of various nanoparticles (clay and H3Sb3P2O14 nanosheets, imogolite nanotubes, CdSe and CeF3 nanoplatelets …) whose phase diagrams and original physical properties still need to be fully explored. This thesis will take place at the LPS which is a joint research unit of CNRS and University Paris-Saclay, specialized in condensed-matter physics. This PhD topic belongs to a more general project, funded by ANR, which aims at using the properties of these nanoparticles to elaborate sensors to monitor water quality.
 E.Paineau et al, Liquid Crystals Reviews, 1, 110 (2013).
 E.Paineau et al, Nature Communications, 7, 10271 (2016).
 B.Abécassis et al, Nanoletters, 14, 710 (2014).
 S.Jana et al, Angewandte Chemie, 55, 9371 (2016).
 S.Jana et al, Science Advances, 3, e1701483 (2017).
Techniques: X-ray scattering in-house and at large synchrotron radiation facilities (SOLEIL, ESRF), optical and electron microscopies, UV-vis spectroscopies, classical laboratories techniques of sample elaboration.
Required profile: Good level physicist or physical chemist. This thesis in experimental physics / physical chemistry will nevertheless involve a strong collaboration with chemists and theorists.
Funding: Project funded by ANR
Thesis advisors: Patrick Davidson, Jean-Christophe Gabriel
2 PhDs opportunities (MESRI)
The 2018 doctoral award campaign of the Ministry of Higher Education, Research and Innovation (MESRI in french) is open for ED 2MIB.
It takes place in 4 phases:
2/ Selection of only one candidate for each project before April 30th
3/ Audition of the candidates by the CIM Pole Jury of the ED (May 18th)
4/ Validation and publication of the results by the ED (June 15th).
click here for details and application:
working with us
We are looking for motivated candidates at any stages of their carreer (interships, PhD, Post-Doc). Calls are opening continiously so don't hesitate to contact us to prepare applications in advance. Our research revolve around the synthesis of colloids (e.g. gold, silica, CdSe) and their self-assembly into materials with the help of advanced caracterization techniques (i.e. SAXS). A taste of modelisation, data analysis and programming is a plus but not mandatory. If you plan to apply for some grants (e.g. Marie Curie actions, DGA...) with your own project, we can help you as long as it suits our research activity. Excellent communication skills (both written and oral) in English are expected while knowledge of French is not mandatory.
Please contact us by e-mail, including your CV and a cover letter precising your motivations and how you could contribute to our research.