IPVF – Postdoc/Research Engineer – High-efficiency III-V solar cells for low-cost photovoltaics

Function : Research Engineer
Contract : CDD
Starting date : ASAP
Duration: 36 months
Working place : IPVF – 18 Boulevard Thomas Gobert, 91120 Palaiseau (Paris-Saclay technology cluster)
Education: PhD in Physics, condensed-matter physics (or related)
Salary: Profile-dependant



Become an actor of the Energy Transition by joining a team driven by innovation and impact to address today’s most decisive challenges.


IPVF – Institut Photovoltaïque d’Île-de-France, is a global Research, Innovation and Education center, which mission is to accelerate energy transition through science & technology.

Bringing together recognized industrial leaders (TotalEnergies, EDF, Air Liquide, Horiba and Riber) and world-renowned academic research teams (CNRS, Ecole Polytechnique), IPVF’ multidisciplinary and international teams conduct research dedicated to clean energy technologies (photovoltaics, green hydrogen, etc.). IPVF has built an ambitious scientific and technological research program, divided into 5 programs and 19 sub-projects, to achieve this objective.
These programs are based on a high-level experimental platform of 8,000 m², located in Paris-Saclay, and comprising more than 100 cutting-edge equipment worth €30M.






IPVF is looking for a Research Engineer to work on III-V solar cells for high-efficiency and low-cost photovoltaics. The project will be carried out in close collaboration with the Center for Nanoscience and Nanotechnologies (C2N-CNRS, SUNLIT team).

Attached to the III-V on Silicon tandem program, the engineer will be in charge of the design and fabrication of wide-bandgap III-V solar cells and III-V/Si tandem devices, and she/he will participate to the epitaxial growth of III-V layers.

Our team has recently demonstrated ultrathin (200 nm) GaAs solar cells with a record efficiency of nearly 20% using efficient light trapping, in collaboration with Fraunhofer ISE (published in Nature Energy, 2019, https://www.nature.com/articles/s41560-019-0434-y). We have also developed state-of-the-art, wide-bandgap (1.7-1.8eV) solar cells made of AlGaAs for integration in III-V/Si tandem solar cells (https://doi.org/10.1002/pip.3249), and we have recorded important advances in nanowire-based solar cells (https://sunlit-team.eu/news/advances-in-nanowires-for-pv/). These results have opened new opportunities for the development of low-cost and high-efficiency photovoltaics based on tandem III-V/Si architectures and advanced concepts (hot-carrier solar cells in particular).

The candidate will benefit from a multidisciplinary environment, IPVF expertise and have access to IPVF and C2N unique capabilities. He will directly report to the Programs Deputy Director of IPVF and will integrate a dynamic and talented team driven by innovation and results.








Within the framework of our growth, we want to reinforce our research programs with the recruitment of a Research Engineer to join our “III-V/Si tandem devices” program.


We have an ambitious roadmap that includes the improvement of quality of III-V materials, novel heterostructure architectures, the fabrication of transferred solar cells with state-of-the-art efficiencies, and their integration in III-V/Si tandem prototypes.

The researcher will benefit from a multidisciplinary environment and will have access to the unique, complementary cleanroom facilities at IPVF and C2N including state-of-the-art epitaxy, nanofabrication and characterization tools.






– PhD in Condensed-Matter Physics, Semiconductor Physics (or related),

– Strong background in physics of semiconductors,

– Knowledge on epitaxy and nanotechnology.


Know-how :

– Experience in nanofabrication and/or epitaxy of III-V semiconductors,

– Proficiency in photovoltaics is desirable,

– Expertise in modelling is an asset.


Self-management skills :

– Team spirit,

– Self-initiative and creativity,

– Autonomous and rigorous,

– Results-oriented.



Cover letter and résumé to be sent to:


Need a direct line?

Feel free to contact us for more information about our offers.

  • +33(0)1 69 86 58 60
  • contact@ipvf.fr
Contact us