University of Gothenburg

Postdoctoral scholarship in Excited state dynamics of organic polaritons

The Department of Chemistry and Molecular Biology at the University of Gothenburg is offering a postdoctoral scholarship in Excited state dynamics of organic polaritons. You will learn how polaritonic chemistry can be used to improve the properties of organic materials. You will use the interplay between the delocalized polaritonic states and localized molecular states to make systems with properties derived from cavity-quantum mechanics. The placement is within the research group of Professor Börjesson, winner of the Göran Gustafsson prize in chemistry 2022 (the most prestigious national prize in science in Sweden), where you will get first class tutoring. Application deadline: 31 August 2022.


Understanding excited state dynamics of polaritons made using organic molecules

Strong exciton-photon coupling exhibits the possibility to modify photophysical properties of organic molecules. This is due to the introduction of hybrid light-matter states, called polaritons, which have unique chemical, physical and optical properties. Those strongly coupled systems provide altered excited state dynamics in comparison to the bare molecule case. You will explore and learn to analyze the excited state dynamics of polaritons taking into consideration molecular centered states. Thus, probing the interaction between the delocalized polaritonic states and localized molecular centered states. You take projects within the field of polariton chemistry from the discussion stage, over all steps in the project cycle to finished manuscripts. You will also be encouraged to implement your previous research knowledge into projects. This in order to break new ground within the broad research topic of polaritonic chemistry, and also to promote your abilities to conceptually develop projects, which is of importance in a future career as an independent research leader. See the following group articles for an introduction to the research topic:

Ye, Mallick, Hertzog, Kowalewski and Börjesson
Direct Transition from Triplet Excitons to Hybrid Light–Matter States via Triplet–Triplet Annihilation
Journal of the American Chemical Society, 2021, 143, 19, 7501-7508.

Yu, Mallick, Wang and Börjesson
Barrier-free reverse-intersystem crossing in organic molecules by strong light-matter coupling
Nature Communications, 2021, 12, 3255.

Mony, Climent, Petersen, Moth-Poulsen, Feist and Börjesson
Photoisomerization Efficiency of a Solar Thermal Fuel in the Strong Coupling Regime
Advanced Functional Materials, 2021, 31, 2010737.

Wang, Hertzog and Börjesson
Polariton-assisted excitation energy channeling in organic heterojunctions
Nature Communications, 2021, 12, 1874.

Mewes, Wang, Ingle, Börjesson and Chergui
Energy relaxation pathways between light-matter states revealed by coherent two-dimensional spectroscopy
Communications Physics, 2020, 3:157.

Hertzog, Wang, Mony and Börjesson
Strong light–matter interactions: a new directionwithin chemistry
Chemical Society Reviews, 2019, 48, 937-961.

Stranius, Hertzog and Börjesson
Selective manipulation of electronically excited states through strong light–matter interactions
Nature Communications, 2018, 9:2273.


GU 2022/1825

Scholarship period

The scholarship covers a period of 24 months.
Preliminary start date: 2023-01-01

Supervisor/contact person

Professor Karl Börjesson, +46766229099,


  • To be eligible for a postdoctoral scholarship at the Department of Chemistry and Molecular Biology, the recipient must hold a PhD degree within a relevant field. The applicant must not have been employed at University of Gothenburg in the past two years.
  • Please specify your experience, knowledge and/or interests necessary for this project. A suitable background for the applicant is a PhD within physical chemistry, optical spectroscopy or physics. A broad knowledge of spectroscopy with hands-on experience of steady state and time resolved optical spectroscopy, as well as experience in numerical modelling are expected from the applicant. Further is it expected that the applicant will have taken responsibility of research projects before. This will be evaluated based on the quality of first author publications.


Written application, including reference number, is to be sent via e-mail to the supervisor and must include the following:

  • CV
  • Personal letter stating the reasons why the study suits the applicant (maximum one page)
  • List of publications
  • References (2)

Application deadline: 2022-08-31

Information regarding scholarships

  • Remember that a scholarship is not an employment. Scholarships do not give rise to sickness benefits, compensation from the Social Insurance Office Agency or retirement pension.
  • The scholarship sum is paid out on two occasions.
  • Scholarships are tax-exempt.