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Linköping University
1 week ago
PhD Student in Applied Physics: Flexible X-ray Detectors and Organic Semiconductors Linköping University in Sweden
Degree Level
PhD
Field of study
Chemistry
Funding
Full-time PhD employment normally lasts four years, with possible extension up to five years based on teaching and departmental duties. The position initially covers one year and may be renewed for up to two years at a time depending on progress. PhD salary follows a locally negotiated salary progression. Teaching or other departmental duties may comprise up to 20% of full-time work.
Deadline
Nov 30, 2026
Country
Sweden
University
Linköping University
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About this position
Linköping University is seeking a PhD student in applied physics to develop flexible X-ray detectors, an emerging technology with potential applications across scientific, medical, and technological fields.
The doctoral project is part of a joint Knut and Alice Wallenberg Foundation-funded effort to create flexible detectors from new organic semiconductors. The research will address the simultaneous requirements of mechanical flexibility, X-ray absorption, and efficient charge transport. The PhD student will develop X-ray detectors using novel materials and investigate them through advanced characterization techniques.
The work is interdisciplinary and involves close collaboration with chemists, materials scientists, and device physicists. The project connects research groups at Linköping University, Chalmers University, and Uppsala University, led by Professors Mats Fahlman, Eva Olsson, and Sascha Ott. At Linköping, the student will join the group led by Professor Feng Gao within the Division of Electronic and Photonic Materials.
Feng Gao’s group focuses on solution-processed optoelectronic devices based primarily on semiconducting perovskites and organic semiconductors. The broader division develops photonic and electronic materials for energy conversion and storage, providing an interdisciplinary research environment spanning materials synthesis, characterization, and device physics.
Funding details
Full-time PhD employment normally lasts four years, with possible extension up to five years based on teaching and departmental duties. The position initially covers one year and may be renewed for up to two years at a time depending on progress. PhD salary follows a locally negotiated salary progression. Teaching or other departmental duties may comprise up to 20% of full-time work.
What's required
A Master's degree in Physics, Chemistry, Materials, or a related field, or completed courses totaling at least 240 credits, including at least 60 credits in advanced Physics, Chemistry, Materials, or a related field; alternatively, essentially corresponding knowledge gained in another way. Candidates should be able to undertake research independently and collaboratively, communicate openly, advise group members on scientific protocols and experimental techniques, take initiative, acquire new knowledge, and have prior experimental experience relevant to physics and/or materials or device development. A Letter of Intent explaining motivation for doctoral study, interest in the position, and qualifications is required.
How to apply
Apply through the “Apply” button on the Linköping University vacancy page. Submit the required application documents, including a Letter of Intent addressing your motivation, interest, and qualifications, by 30 November 2026.
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