Job offer

Organisation/Company ICube laboratory - CNRS Department MATISEN Research Field Physics » Applied physics Researcher Profile First Stage Researcher (R1) Positions PhD Positions Application Deadline 1 May 2026 - 12:00 (Europe/Paris) Country France Type of Contract Temporary Job Status Full-time Hours Per Week 38 Offer Starting Date 1 Oct 2026 Is the job funded through the EU Research Framework Programme? Not funded by a EU programme Is the Job related to staff position within a Research Infrastructure? No

Offer Description The ICube laboratory has about 800 members and brings together researchers of CNRS, University of Strasbourg and INSA of Strasbourg. It isa major driving force for research in biomedical engineering and sustainable development.

We seek an excellent candidate for a PhD on \" Devices based on oxychalcogenide perovskites for photovoltaic and optoelectronic applications \" under the supervision of Dr. Thomas FIX

Inorganic thin film photovoltaic technologies are mainly based on CdTe, amorphous silicon or CIGS. Recently, Pb-based perovskite materials have emerged as a promising alternative but suffer from toxicity and stability. Perovskites are based on the ABX3 formula, with X=Cl,Br,Iin halide perovskites, X=O in oxides and X=S,Se, … in chalcogenide perovskites. Many oxides provide a high bandgap not compatible with the solar spectrum while this bandgap is much lower in chalcogenide perovskites. We recently demonstrated that the oxychalcogenideCaZrSxO3-x provides enhanced stability compared to halide perovskites under illumination, temperature and humidity.

The objective of this thesis is to obtain devices based on oxychalcogenide perovskites for applications in photovoltaics and optoelectronics. The perovskite is grown in thin film by pulsed laser deposition (PLD). Appropriate multilayer systems will be determined thanks to simulation tools in order to obtain pn junctions and solar cells. These stacks will then be fabricated experimentally and the films will be characterized to obtain their structural, optical, electrical, surface and optoelectronic properties. Finally, the best devices will be assessed using our photovoltaic benches available at ICube. The hosting laboratory owns the tools for thin film growth, characterization, fabrication and measurements of semiconducting and photovoltaic devices. A strong collaboration with IPCMS is in place for advanced structural analysis and ab initio calculations.

Where to apply E-mail tfix@unistra.fr

Requirements Research Field Physics » Applied physics Education Level Master Degree or equivalent

Skills/Qualifications Required:

Master of Science in Physics, Chemistry, Engineering or Materials Science.

Experience in experimental physics

Knowledge in materials science, fabrication of materials and structural characterizations

Good presentation skills and excellent written and oral English level (certified with a high TOEFL score or equivalent)

Team work skills and innovation capabilities

Languages ENGLISH Level Good

Additional Information About 1975 € gross monthly for 3 years duration

About 40-50 days of paid leave /year depending on hours per week

Eligibility criteria Master of Science in Physics, Chemistry, Engineering or Materials Science.

Selection process Applicants: please apply with a motivation letter, a CV and your Bachelor and MSc grades to tfix@unistra.fr . Your email topic must start with \"[PhDCHALCO2026]\". Only highly ranked students will be considered and a statement of your provisional or final MSc rank is

mandatory . That is a certificate saying that you are ranked for example \"2nd out of 25 students in the Master\".

19 February - 01 May 2026 : applications and preselections

19 May 2026 : submitted application form to Doctoral School validated by PhD Director

8-9 June 2026 : audition of selected candidates by the Doctoral School

11 June 2026 : notification of acceptance

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