Institut d'Optique Graduate School
6 days ago
PhD in Astrochemistry, Molecular Physics, and Spectroscopy at LIGHTinPARIS (PAHIS) Institute for the Sciences of Light / Institut d’Optique Graduate School in France
Degree Level
PhD
Field of study
Chemistry
Funding
Full funding availableDeadline
Sep 21, 2026
Country
France
University
Institut d'Optique Graduate School

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About this position
LIGHTinPARIS (Université Paris-Saclay / Institut d’Optique Graduate School) is offering a fully funded PhD fellowship in the PAHIS project: Pathways to Aromatic Hydrocarbons in Interstellar Space. The project sits at the intersection of physics, chemistry, and astronomy, with a strong focus on astrochemistry, molecular physics, mass spectrometry, ion mobility spectrometry, and laser spectroscopy.
The research investigates how small aromatic molecules form in the interstellar medium, including the role of the C5H7+ ion and its connection to five-membered ring hydrocarbons and PAH-related chemistry. The candidate will work with ion–molecule reactions using the iSELECTION setup at ISMO, combining laboratory experiments, kinetic measurements, and spectroscopy. Complementary experiments will take place in Prague, and the results will be used in astrochemical models.
This is one of the PhD projects in the 3rd LIGHTinPARIS call, co-funded by the European Union under Horizon Europe MSCA COFUND and supported by Université Paris-Saclay and non-academic partners. The position is a 36-month full-time doctoral employment contract starting 1 January 2027, with a minimum gross monthly salary of €2400 and a monthly travel/mobility allowance of €200. Doctoral school enrolment fees are covered.
Eligibility highlights: applicants must hold or be completing a Master’s degree by 21 September 2026, must not already hold a PhD, and must satisfy the MSCA mobility rule. A background in molecular physics, physical chemistry, or astrochemistry is required, along with experience in mass spectrometry, ion mobility, or laser spectroscopy. English at B2 level is mandatory; French is not required. Security clearance is also required.
Applications must be submitted through the LIGHTinPARIS portal after completing the eligibility check. Candidates are advised to review the programme guide, select the thesis subject, contact the supervisor, register on the portal, and submit before the deadline.
Funding details
Full funding including tuition fees and living expenses is available for this position. The scholarship covers all educational costs and provides a monthly stipend.
How to apply
Please submit your application including a cover letter, CV, academic transcripts, and contact information for two references. Applications should be sent via the online portal before the deadline.
More information can be found here
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