Solution processed organic photodetectors for medical applications

Gerwin Gelinck^a

^aHolst Centre/TNO

Materials for Sustainable Development Conference (MATSUS)
Proceedings of nanoGe Fall Meeting 2021 (NFM21)

#NanoPrint21. Engineered Nanomaterials and Inks for Printed, Flexible and Interfacial Electronics

Online, Spain, 2021 October 18th - 22nd

Organizers: Shweta Agarwala and Victor Sans Sangorrin

Invited Speaker, Gerwin Gelinck, presentation 080
DOI: https://doi.org/10.29363/nanoge.nfm.2021.080
Publication date: 23rd September 2021

Thanks to their low-temperature processing on large-area flexible substrates thin-film organic photodetectors (OPDs) are very attractive for a range of large area imaging and sensing applications. The presentation will consist of two parts. In the first part I will focus on better understanding the physical mechanisms that determine the intrinsic limits of the detectivity of OPDs, in particular the dark current in relation to dark injection and charge generation-recombination currents. In the second part will present some recent developments in realizing curved X-ray detectors and -upon integration with OLED displays - biometric scanners that can accurately image finger-, palm and vein patterns and simultaneously record PPG signals that can be used to monitor health parameters such as heart beat, oxygen saturation and blood pressure, thus demonstrating the advantages of organic photodiodes in high-resolution, flexible large-area photodetectors.

References:

[1] Albert J.J.M. van Breemen, Matthias Simon , Olivier Tousignant,Santhosh Shanmugam, Jan-Laurens van der Steen, Hylke B. Akkerman, Auke Kronemeijer, Walter Ruetten, Rob Raaijmakers, Lex Alving, Jan Jacobs, Pawel E. Malinowski, Florian De Roose, Gerwin H. Gelinck, Curbed X-ray detectors, npj Flex Electron 4, 22 (2020).

[2] Giulio Simone, Daniel Tordera, Ezequiel Delvitto, Bart Peeters, Albert J. J. M. van Breemen, Stefan C. J. Meskers, René A. J. Janssen and Gerwin H. Gelinck, High-accuracy photoplethysmography (PPG) array using near-infrared organic photodiodes with ultralow dark current, Adv Opt Mat. 8 (2020) 1901989

[3] Giulio Simone, Matthew J. Dyson, Christ H. L. Weijtens, Stefan C. J. Meskers, Reinder Coehoorn, René A. J. Janssen and Gerwin H. Gelinck, On the origin of dark current in organic photodetectors, Adv. Optical Mater. 8 2020 1901568

[4] Daniel Tordera, Bart Peeters, Ezequiel Delvitto, Santhosh Shanmugam, Joris Maas, Joris de Riet, Roy Verbeek, Robert van de Laar, Thijs Bel, Gerard Haas, Leslye Ugalde, Albert van Breemen, Ilias Katsouras, Auke Jisk Kronemeijer, Hylke Akkerman, Eric Meulenkamp, Gerwin Gelinck, Vein detection with near‐infrared organic photodetectors for biometric authentication J SID, 28(5) (2020) 381-391

[5] Giulio Simone, Matthew J. Dyson, Stefan C. J. Meskers, René A. J. Janssen and Gerwin H. Gelinck, Organic photodetectors and their application in large area and flexible image sensors: the role of dark current, Adv. Funct. Mater. 30 (2020) 1904205

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