About us

Yun Luo

Yun Luo


As a physicist, Yun believes in the simple beauty of the world. As an entrepreneur, Yun is persistent and enthusiastic. She strives to drive RoSi to be a key player in sustaining the values in solar energy production. Green from Green, and back to Green!

Diploma of Engineering from Ecole Polytechnique in France (X97)
PhD from Max-Planck-Institute of Microstructure Physics in Germany (‘05)
Technology management in Meyer Burger Technology Group (CH)

Daniel Bajolet

Daniel Bajolet

General Director

As former senior VP of Rhodia, Daniel has deep understanding and affection to Silicon and Silicone-based industry. Daniel is experienced, sharp, and open-minded, striving for a better industry structure, and a better world. He played critical role in several M&A across the continents.

Ingénieur Arts et Métiers (Promotion Angers 66)
Ecole Supérieure d’Application du Matériel (Bourges)
Institut de Génie Chimique de Toulouse (1972)
Institut Français de Gestion (ICG) 1980 formation en alternance.

ROSI – Return of Silicon

ROSI SAS from Grenoble in France, offers an innovative solution to recycle highly pure Silicon, either from “kerf”, an industrial waste resulting from the production of solar wafers, or from the Silicon fines as PV-Silicon production process loss. ROSI valorizes the high quality Silicon contained in the industrial waste in order to re-inject into its original PV production line.

  • Innovative technology and global perspective
  • Valorization of industrial waste and reduction of CO2 emission
  • Efficiency booster for PV industry

Recycling Silicon through ROSI’s leading technologies reduces at least 30% of CO2 emissions, increases production efficiency and reduces the cost of PV modules, thus, renders the PV industry into a truly circular economy.

Join us

We strive for a better future for our planet, cleaner and greener. A circular economy in PV is at the center of our R&D and business activities. Therefore, we will be more than happy to work with people who:

  • are open and dynamic in mindset;
  • have their feet on the ground;
  • believe in the power of rational technology;
  • understand that business is P(erson)-2-P(erson).

Together with SIMaP, we are currently looking for an engineer in materials science (100%) with a CDD contract of 18 months. More information can be found here. If you are interested in joining us, please contact: guy.chichignoud@simap.grenoble-inp.fr