PostDoc position in triplet-triplet annihilation photon upconversion, towards new molecular systems University of Gothenburg in Sweden

The University of Gothenburg invites applications for a postdoctoral position in triplet-triplet annihilation photon upconversion, focusing on the development of new molecular systems. The Department of Chemistry and Molecular Biology is renowned for its high-quality research and education in chemical sciences and molecular life sciences, with a strong emphasis on interdisciplinary collaboration and international engagement. The research group led by Professor Karl Börjesson investigates the fundamentals of photophysical systems, deriving new concepts within photophysical chemistry and employing physical-organic chemistry methodologies to build advanced materials.

This Wallenberg-funded project aims to develop new organic molecules to enhance the efficiency of photon upconversion, specifically through triplet-triplet annihilation upconversion (TTA-UC). TTA-UC is a process that converts two low-energy photons into one higher-energy photon, with the goal of maximizing upconversion yield by understanding and optimizing the driving factors. The transition from solution to solid-state materials requires replacing molecular diffusion with exciton diffusion, a key challenge in achieving highly efficient TTA-UC materials. The successful candidate will design, synthesize, and characterize organic dyes, working closely with group members to address research questions at the interface of chemistry, physics, and materials science.

Eligibility requires a doctoral degree or equivalent, preferably completed within the last three years, though exceptions may be made for special circumstances such as illness or parental leave. Candidates must demonstrate very good oral and written proficiency in English and possess strong knowledge in the synthesis of organic compounds. Meritorious qualifications include experience in high-quality scientific projects (as evidenced by first author publications and interview), synthesis and photophysical measurement of organic dyes, experience in triplet-triplet annihilation photon upconversion, and expertise in molecular photophysics.

The position is full-time (100%) for two years, based at the Department of Chemistry and Molecular Biology. The start date is September 2026. Funding is provided by Wallenberg, with salaries set individually by the University. Applicants must submit a complete application in English, including a CV, publication list, research description, references, degree certificate, and other relevant documents. All qualifications must be documented, certified, and translated into English. Applications must be received by April 29, 2026.

For further information, contact Professor Karl Börjesson at [email protected]. Additional details about the group and union representatives can be found on the university website. The University of Gothenburg values diversity and equal conditions in its working environment.