Marcin Kielar

Junior Professor / Chaire de Professeur Junior

marcin.kielar@univ-angers.fr • Office K030 (KEMTRONIX) • ORCID • Google Scholar • LinkedIn

Organic Electronics • Organic Photodetectors • OLEDs • Optogenetics • Neuroscience

I am an Australian-French researcher with over a decade of experience in the design and fabrication of organic optoelectronic devices, including organic light-emitting diodes (OLEDs), organic photovoltaic cells (OPVs), and organic photodetectors (OPDs). As a Junior Professor / Lecturer (Tenure-Track) at the University of Angers (MOLTECH-Anjou), I lead interdisciplinary, collaborative research in organic electronics for neuroscience and biomedical applications. This includes optoelectronic neural probes compatible with fMRI and wearable devices for assessing movement disorders. I also supervise PhD and Masters students and teach undergraduate and postgraduate courses in organic electronics, electrical engineering, and physics.

Parcours / Carrière

2024 – Present: Junior Professor / Lecturer (Tenure-Track), Chaire de Professeur Junior, MOLTECH-Anjou Laboratory, University of Angers, France
2017 – Present: Postdoctoral Research Fellow & Honorary Senior Fellow, Queensland Brain Institute, The University of Queensland, Australia
2013 – 2016: PhD Researcher (CIFRE Industrial Doctorate), Organic Electronics Laboratory, University of Bordeaux, France (in partnership with ISORG)
2013: Master's Research Intern, Seth Marder Group, Georgia Institute of Technology, USA
2012: Master's Research Intern, Justin Hodgkiss Group, MacDiarmid Institute for Advanced Materials and Nanotechnology, Victoria University of Wellington, New Zealand

Supervision

Postdoctoral researchers: Beatrice Galliano (2026 – Present)
PhD students: Benjamin Roux and Rita Aflak (2025 – Present), Paul Guerizec-Guery (2026 – Present)
Master’s level UA students: Benajmin Roux and Lise Toutain (2025), Hugo Ragot and Alexandre Mignot (2026)
IUT students: Raphaël Guillemet (2026)

Research activities

Development of high-efficient organic optoelectronic devices: organic solar cells (OPVs), organic photodetectors (OPDs) and organic light-emitting diodes (OLEDs)
Optoelectronic neural probes compatible with fMRI for neural interfacing and optogenetic recordings
Wearable multifunctional devices for assessing movement disorders such as Parkinson's disease and essential tremor

Distinctions

2018: Best Early Career Researcher Oral Presentation, Australasian Community for Advanced Organic Semiconductors (AUCAOS) Research Symposium, Adelaide, Australia
2016: Best Student Paper Award (2nd place), SPIE Organic Photonics + Electronics, San Diego, USA

Teaching activities

Organic Electronics (2024 – present). Graduate module, Master's program in Light, Molecule, Matter (LUMOMAT), University of Angers. Designed from scratch: lecture course (full slide deck), a companion exercise document for students, and an original laboratory practical (experiment design plus accompanying manual).
Immersion recherche (2024 – present). Research-immersion module for first-year science students, University of Angers. Designed and developed entirely from scratch.
Applied Physics practicals (2024 – present) | First-year engineering technology students (BUT/IUT Génie Électrique et Informatique Industrielle), University of Angers
Electrical Engineering (Operational Amplifiers) practicals (2024 – present). First-year engineering technology students (BUT/IUT Génie Électrique et Informatique Industrielle), University of Angers (2024–present)
Sustainable Electricity (2025 – present). Master's-level module, University of Angers

Scientific Outreach

CoralWatch Ambassador. CoralWatch (University of Queensland), a global citizen-science program monitoring coral reef health. Developing low-cost sensors to monitor seawater parameters (salinity, turbidity, pollution, pH); delivering 2–3 invited public seminars per year in Australia and France (including at science festivals, UQ and the University of Angers) and outreach visits to schools and hospitals. (2023–present)
Member, organizing committee, Fête de la Science (World Science Festival) (2026 – present). University of Angers

Collaborations

Professor Pankaj Sah, Queensland Brain Institute, University of Queensland, St Lucia, QLD, Australia
Associate Professor Paul Shaw, Center for Organic Photonics and Electronics, University of Queensland, St Lucia, QLD, Australia
Professor Prashant Sonar, Queensland University of Technology, Brisbane, QLD, Australia
Associate Professor Soniya Yambem, Queensland University of Technology, Brisbane, QLD, Australia
Dr Paul Marshall, Australian National University (ANU), Canberra, ACT, Australia
Dr Madhu Perumal, Monash University, Melbourne, VIC, Australia
Dr Lionel Hirsch, IMS Bordeaux, University of Bordeaux, France
Internal Collaborators (MOLTECH-Anjou): Pierre Frère, Frédéric Gohier, Alexandre Abhervé, Flavia Pop and all members of our group (KEMTRONIX)

Full publication list

Publications HAL

2026

titre: Light-inducible proximity labelling in vivo captures sex-specific RNA at excitatory synapses
auteur: Joshua Davies, Valeria Suhinin, Arie Brueckner, Gabriel John A. Araneta, Laura Leighton, Alexander Walsh, Sachithrani Madugalle, Timothy Young, Hao Gong, Mason Musgrove, Haobin Ren, Marcin Kielar, John Yu-Luen Lin, Ying Li, Timothy Bredy, Paul Marshall
article: BioRxiv, 2026, ⟨10.64898/2026.01.28.702434⟩
Accès au bibtex

titre: Diketopyrrolopyrrole organic cations as strategy for iodide and lead-free hybrid metal–halide based photoconductors
auteur: Théo Forestier, Marcin Kielar, Claudia Wilfinger, Aseem Rajan Kshirsagar, Mikaël Kepenekian, Alexandre Abhervé, Flavia Pop
article: Inorganic Chemistry Frontiers, 2026, 13 (10), pp.4521-4529. ⟨10.1039/d6qi00231e⟩
Accès au texte intégral et bibtex

2025

titre: Application of Organic Light-Emitting Diodes and Photodiodes in Optical Control and Detection of Neuronal Activity
auteur: Marcin Kielar, Matthew Kenna, Philippe Blanchard, Pankaj Sah
article: Photonics, 2025, 12 (3), pp.281. ⟨10.3390/photonics12030281⟩
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2024

titre: DNA G-Quadruplex Is a Transcriptional Control Device That Regulates Memory
auteur: Paul Marshall, Joshua Davies, Qiongyi Zhao, Wei-Siang Liau, Yujin Lee, Dean Basic, Ambika Periyakaruppiah, Esmi Zajaczkowski, Laura Leighton, Sachithrani Madugalle, Mason Musgrove, Marcin Kielar, Arie Maeve Brueckner, Hao Gong, Haobin Ren, Alexander Walsh, Lech Kaczmarczyk, Walker Jackson, Alon Chen, Robert Spitale, Timothy Bredy
article: Journal of Neuroscience, 2024, 44 (15), pp.e0093232024. ⟨10.1523/JNEUROSCI.0093-23.2024⟩
Accès au bibtex

titre: Advances in Organic Photodetectors
auteur: Chloé Dindault, Marcin Kielar, Gilles Roche, Sylvain Chambon, Martial Leyney, Guillaume Wantz, Lionel Hirsch
article: IEEE Xplore Digital Library, 2024, pp.1-4. ⟨10.1109/IEDM45741.2023.10413743⟩
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2023

titre: Solution‐Processed Ternary Organic Photodetectors with Ambipolar Small‐Bandgap Polymer for Near‐Infrared Sensing
auteur: Gurudutt Bhat, Marcin Kielar, Pankaj Sah, Ajay Pandey, Prashant Sonar
article: Advanced Electronic Materials, 2023, 10 (2), ⟨10.1002/aelm.202300583⟩
Accès au bibtex

titre: Low bandgap donor-acceptor-donor-based TPA-azaBODIPY-TPA small molecule for flexible near-infrared organic photodetectors
auteur: Gurudutt Bhat, Marcin Kielar, Mahnaz Gholami, Pankaj Sah, Ajay Pandey, Prashant Sonar
article: SPIE DIGITAL LIBRARY, 2023, pp.24. ⟨10.1117/12.2677285⟩
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titre: Stability, reliability, and performance of organic light-emitting diodes and photodetectors in optogenetic studies
auteur: Marcin Kielar, Roger Marek, Helen Gooch, Cameron Cole, Matthew Kenna, Li Xu, Soniya Yambem, Ajay Pandey, Pankaj Sah
article: SPIE DIGITAL LIBRARY, 2023, pp.7. ⟨10.1117/12.2677124⟩
Accès au bibtex

2022

titre: Optogenetic Stimulation and Spatial Localization of Neurons Using a Multi-OLED Approach
auteur: Marcin Kielar, Roger Marek, Matthew Kenna, Cameron Cole, Li Xu, Soniya Yambem, Pankaj Sah, Ajay Pandey
article: ACS photonics, 2022, 9 (10), pp.3279-3290. ⟨10.1021/acsphotonics.2c00590⟩
Accès au bibtex

titre: Versatile aza‐BODIPY ‐based low‐bandgap conjugated small molecule for light harvesting and near‐infrared photodetection
auteur: Gurudutt Bhat, Marcin Kielar, Haixia Rao, Mahnaz Gholami, Isabel Mathers, Astrid Larin, Thomas Flanagan, Enkhtur Erdenebileg, Annalisa Bruno, Amandeep Singh Pannu, Kathryn Fairfull-Smith, Emad Izake, Pankaj Sah, Yeng Ming Lam, Ajay Pandey, Prashant Sonar
article: InfoMat, 2022, 4 (12), ⟨10.1002/inf2.12345⟩
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2021

titre: Energy-Level Manipulation in Novel Indacenodithiophene-Based Donor–Acceptor Polymers for Near-Infrared Organic Photodetectors
auteur: Gurudutt Bhat, Qian Liu, Marcin Kielar, Yuya Hamada, Tsuyoshi Michinobu, Pankaj Sah, Aung Ko Ko Kyaw, Ajay Pandey, Prashant Sonar
article: ACS Applied Materials & Interfaces, 2021, 13 (25), pp.29866-29875. ⟨10.1021/acsami.1c03643⟩
Accès au bibtex

2020

titre: Direct Detection of Neuronal Activity Using Organic Photodetectors
auteur: Marcin Kielar, Helen Gooch, Li Xu, Ajay Pandey, Pankaj Sah
article: ACS photonics, 2020, 8 (1), pp.228-237. ⟨10.1021/acsphotonics.0c01378⟩
Accès au bibtex

titre: Multifunctional Diode Operation of Tetracene Sensitized Polymer:Fullerene Heterojunctions with Simultaneous Electroluminescence in Visible and NIR Bands
auteur: Tasnuva Hamid, Marcin Kielar, Soniya Yambem, Ajay Pandey
article: Advanced Electronic Materials, 2020, 7 (1), ⟨10.1002/aelm.202000824⟩
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titre: Light Detection in Open‐Circuit Voltage Mode of Organic Photodetectors
auteur: Marcin Kielar, Tasnuva Hamid, Martin Wiemer, François Windels, Lionel Hirsch, Pankaj Sah, Ajay Pandey
article: Advanced Functional Materials, 2020, 30, pp.1907964. ⟨10.1002/adfm.201907964⟩
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2019

titre: Spectral changes associated with transmission of OLED emission through human skin
auteur: Soniya Yambem, Trent Brooks-Richards, David Forrestal, Marcin Kielar, Pankaj Sah, Ajay Pandey, Maria Woodruff
article: Scientific Reports, 2019, 9 (1), pp.9875. ⟨10.1038/s41598-019-45867-9⟩
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titre: Organic Optoelectronic Diodes as Tactile Sensors for Soft-Touch Applications
auteur: Marcin Kielar, Tasnuva Hamid, Liao Wu, François Windels, Pankaj Sah, Ajay Pandey
article: ACS Applied Materials & Interfaces, 2019, 11 (24), pp.21775-21783. ⟨10.1021/acsami.9b04671⟩
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titre: Insights into the Failure Mechanisms of Organic Photodetectors
auteur: Marcin Kielar, Mehdi Daanoune, Olivier François-Martin, Bruno Flament, Olivier Dhez, Ajay K Pandey, Sylvain Chambon, Raphaël Clerc, Lionel Hirsch
article: Advanced Electronic Materials, 2019, ⟨10.1002/aelm.201700526⟩
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2017

titre: Bipolar Electrochemistry with Organic Single Crystals for Wireless Synthesis of Metal–Organic Janus Objects and Asymmetric Photovoltage Generation
auteur: Iuliia Malytska, Cécile Mézière, Marcin Kielar, Lionel Hirsch, Guillaume Wantz, Narcis Avarvari, Alexander Kuhn, Laurent Bouffier
article: Journal of Physical Chemistry C, 2017, 121 (23), pp.12921 - 12927. ⟨10.1021/acs.jpcc.7b02678⟩
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2016

titre: Long-Term Stable Organic Photodetectors with Ultra Low Dark Currents for High Detectivity Applications
auteur: Marcin Kielar, Olivier Dhez, Gilles Pecastaings, Arnaud Curutchet, Lionel Hirsch
article: Scientific Reports, 2016, 6 (1), pp.39201. ⟨10.1038/srep39201⟩
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