Ivana Qianqi Lin

University of Twente is hiring a PhD candidate in in-situ optical sensing for polymer-based optoelectronics . The project focuses on developing advanced optical sensing techniques to reveal how charge, structure, and chemistry evolve in functional polymer materials during operation, with the broader goal of enabling energy-efficient organic optoelectronics . The research sits at the intersection of physical chemistry , physics , materials science , and optics/spectroscopy . The PhD student will work on selecting and designing conductive polymers, fabricating electronic devices, and building an in-situ UV-Vis/Raman/surface-enhanced Raman spectroscopy platform to study interfacial charge transfer, redox switching, doping/dedoping, morphology dynamics, and local electric field effects. The project also includes modelling electrical and optical inputs and responses for energy-efficient computing as a proof of concept. Ideal applicants hold a BSc or MSc in Physical Chemistry or Physics (or a related field), have proven experimental skills in optics and spectroscopies , and are comfortable with coding and data analysis . Interest in organic functional materials is highly valued, and the team welcomes candidates from diverse academic backgrounds. Applicants should be fluent in English, collaborative, motivated, and willing to learn polymer synthesis and modelling skills. The position is a 4-year PhD appointment with a salary from €3,059 gross per month in year 1 to €3,881 gross per month in year 4. Additional benefits include holiday allowance, year-end bonus, pension, parental leave, access to state-of-the-art facilities, and relocation/immigration support. Deadline: 5 July 2026. How to apply: submit the application online through the vacancy portal with a CV, motivation letter, academic transcripts, and referee contact details. Applications must be submitted via the indicated route only.

PhD opportunity at the University of Twente in the Department of Molecules and Materials / Faculty of Science & Technology (TNW) on in-situ optical sensing for polymer-based optoelectronics . The project focuses on developing optical sensing techniques to observe how charge, structure, chemistry, morphology, and local electric fields evolve in conductive and functional polymer materials during operation. The research combines physics , chemistry , materials science , electrical engineering , and computer science , with hands-on work in optics , spectroscopy , UV-Vis , Raman , and surface-enhanced Raman spectroscopy . The goal is to enable energy-efficient organic-based optoelectronics, molecular memory, neuromorphic devices, and chemical sensing. The PhD researcher will select and design conductive polymers, fabricate electronic devices, build an in-situ optical sensing platform, and model electrical and optical inputs/responses for energy-efficient computing as a proof of concept. The role is embedded in a collaborative, interdisciplinary environment with access to state-of-the-art facilities and nearby high-tech partners. Eligibility highlights: a BSc or MSc in Physical Chemistry or Physics is required, with proven experimental skill in optics and spectroscopies. Applicants should be fluent in English, have good coding and analysis skills, be willing to develop modelling skills, and show interest in organic functional materials and polymer synthesis. Strong motivation, critical thinking, and teamwork are emphasized. Funding and terms: 4-year PhD appointment; gross salary from €3,059/month in year 1 to €3,881/month in year 4; holiday allowance, year-end bonus, pension, relocation and immigration support, and professional development through Graduate School Twente. Application deadline: 5 July 2026. Apply online with a CV, motivation letter, BSc/MSc transcripts, and at least one referee contact. An interview and scientific presentation are part of the selection process.