Growth mechanism of luminescent nanoparticles in solution
|Contact: CARRIERE David, , firstname.lastname@example.org, +33 1 69 08 54 89|
The formation of crystals in solution occurs in many processes of natural (rock formation, biominerals...) or synthetic origin (catalysts, concrete, nanomedicine...). This phenomenon still remains poorly undersood; progress is hampered by the difficulty to observe fast phenomena at the nanometer scale.
|Possibility of continuation in PhD: Oui|
|Deadline for application:23/04/2019 |
|Full description: |
The goal of the project is to tackle generic questions on the nucleation of oxide nanocristals synthesized in water [Fleury et al., ACS Nano 2014]. Indeed, it is now acknowledged that the current nucleation/growth theories require in many cases a drastic revision [De Yoreo et al. Science 2015]. But progress is hampered by the difficulty to observe nucleation at relevant time- and spatial scales (below 1nm and 1ms).
We are in particular interested with the case of luminescent nanoparticles where the inorganic nanostructure determines crucially the properties for the targed applications: biological probes, precursors for thin films, chemical detection [Casanova et al. Nat. Nanotechnol. 2009].
In this context, we are looking for a master candidate to deal with cutting-edge experimental characterizations, in particular at extremely short reaction times (µs - s) and/or spatial scales (<1nm). In order to progress in this acknowledged difficult question, the candidate will setup structural characterizations by X-ray scattering techniques, chemical characterizations by emission spectroscopy, and microfluidic reactors.
Abstraction skills, easy in experimental physics and/or chemistry, writing and reporting skills
|Technics/methods used during the internship: |
X-ray scattering in laboratory or synchrotron, luminescence spectroscopy - classical (steady-state) or with pulsed sources, microfluidics
|Tutor of the internship |