IPVF Internship: Techno-economic assessment of III-V on Silicon tandem photovoltaic cells

Contract type: Internship

Starting date: April, 2021

Duration: 6 months

Working Place: Palaiseau

Education: Master 2 ; Engineer

Salary: Salary grid

IPVF in brief

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, whose mission is to accelerate energy transition through science & technology.

Gathering industrial PV leaders (EDF, Total, Air Liquide, Horiba and Riber) and world-renowned academic research teams (CNRS, Ecole Polytechnique), multi-disciplinary and international IPVF teams conduct research for clean energy technologies.

Supported by the French State, IPVF is labelled Institute for Energy Transition (ITE).

IPVF at a glance:

  • An ambitious Scientific and Technological Program: from tandem solar cell technologies to economy & market assessment, state-of-the art characterization, photocatalysis and concepts breakthrough.
  • A state-of-the-art technological platform: more than 100 tools, located in cleanrooms (advanced characterization, materials deposition, prototypes for fabrication, modelling…).
  • A high-standard Education program (M.S. and PhD students).

Job Context

The research Program 1 “Techno-economic analysis and opportunities” at IPVF has the objective to assess the most promising emerging PV technologies with the best compromise between efficiency/cost/maturity, as well as to analyze market opportunities to drive the research programs in IPVF. The tandem concept provides the best possible route to surpass the Shockley–Queisser limit of single junction crystalline silicon (c-Si), facilitating the pathway towards IPVF’s goal of obtaining a 30% photovoltaic (PV) module efficiency. One promising architecture for this tandem technology, being investigated at IPVF, consists of depositing a high efficiency III-V PV cell on top of a c-Si cell, thereby making use of a larger part of the incoming spectrum. To evaluate its industrial feasibility, a bottom-up cost model of the manufacturing process flow needs to be developed.

More info on Program 1 here: https://ipvf.fr/lars-oberbeck-introducing-ipvf-programme-1-techno-economic-analyses-and-opportunities/

Main missions

  • Support Program 1 in the development of the bottom-up cost model for the III-V tandem technology:
    • Review the established manufacturing process flow of the technology developed at IPVF, to identify the corresponding costs for each step.
    • Assist in the gathering of the cost information from suppliers for equipment, raw material, consumables, utilities, labor, maintenance, among other related costs for each manufacturing step.
    • Compile all the information in a model to calculate the cost of ownership of this technology.
  • Support in the evaluation of the cost model, identify major cost burdens and provide recommendations for cost reductions.
  • Establish contact within the IPVF community to obtain the information of such tandem technology, which is required in the development process of the cost model.

Expected profile


  • PV technologies , silicon & III-V
  • Manufacturing PV processes
  • Cost and economic indicators


  • Breakdown of processes into individual steps
  • Good written and oral expression in English

Self-management skills

  • Interdisciplinary approach and teamwork
  • Autonomous and enthusiastic
  • Synthesis skills


Cover letter and resume to be sent to: christian.moreno@ipvf.fr

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