Optical seminar | 10 December 2021

Photodetectors are the cornerstone of imaging technologies in fields like surveillance, sensing, biomedical, and biometrics. In this sense, organic photodetectors (OPDs) have attracted much attention in recent years, due to their promise in large-area light sensing applications.
In this talk we will revise the concept of OPDs and the characterization of their key figures of merit. We will look into the optimization of these figures of merit via device stack engineering and a careful selection of the active materials and transport layers. We will then see how to incorporate these OPDs into imager arrays and how to use them for fingerprint sensing, vein detection and biomedical applications, amongst others.

Main paper/arXiv, related to the seminar, and other references

1. Tordera, D.; Peeters, B.; Akkerman, H. B.; van Breemen, A. J. J. M.; Maas, J.; Shanmugam, S.; Kronemeijer, A. J.; Gelinck, G. H., A High-Resolution Thin-Film Fingerprint Sensor Using a Printed Organic Photodetector. Adv. Mater. Tech. 2019, 4 (11), 1900651
2. Tordera, D.; Peeters, B.; Delvitto, E.; Shanmugam, S.; Maas, J.; de Riet, J.; Verbeek, R.; van de Laar, R.; Bel, T.; Haas, G.; Ugalde, L.; van Breemen, A.; Katsouras, I.; Kronemeijer, A. J.; Akkerman, H.; Meulenkamp, E.; Gelinck, G., Vein detection with near-infrared organic photodetectors for biometric authentication. Journal of the SID 2020, 28 (5), 381-391
3. Simone, G.; Tordera, D.; Delvitto, E.; Peeters, B.; van Breemen, A. J. J. M.; Meskers, S. C. J.; Janssen, R. A. J.; Gelinck, G. H., High-Accuracy Photoplethysmography Array Using Near-Infrared Organic Photodiodes with Ultralow Dark Current. Adv. Opt. Mater. 2020, 8 (10), 1901989
4. Akkerman, H.; Peeters, B.; van Breemen A.; Shanmugam, S.; Ugalde Lopez, L.; Tordera D.; van de Ketterij, R.; Delvitto, E.; Malinowski, P.; Ke, T-H.; Moreno Hagelsieb, L.; Katsouras, I.; Kronemeijer, A.J.; Meulenkamp, E.; Gelinck G., Integration of large-area optical imagers for biometric recognition and touch in displays. Journal of the SID 2021. DOI: 10.1002/jsid.1060
5. 6. Dyson, M. J.; Verhage, M.; Ma, X.; Simone, G.; Tordera, D.; Janssen, R. A. J.; Gelinck, G. H., Color Determination from a Single Broadband Organic Photodiode. Adv. Opt. Mater. 2020, 8 (7), 1901722