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Vein detection with near‐infrared organic photodetectors for biometric authentication
Author(s) -
Tordera Daniel,
Peeters Bart,
Delvitto Ezequiel,
Shanmugam Santhosh,
Maas Joris,
Riet Joris,
Verbeek Roy,
Laar Robert,
Bel Thijs,
Haas Gerard,
Ugalde Leslye,
Breemen Albert,
Katsouras Ilias,
Kronemeijer Auke Jisk,
Akkerman Hylke,
Meulenkamp Eric,
Gelinck Gerwin
Publication year - 2020
Publication title -
journal of the society for information display
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.578
H-Index - 52
eISSN - 1938-3657
pISSN - 1071-0922
DOI - 10.1002/jsid.891
Subject(s) - photodetector , detector , optoelectronics , materials science , backplane , near infrared spectroscopy , optics , infrared , pixel , photodiode , thin film transistor , computer science , physics , computer hardware , layer (electronics) , nanotechnology
We combine a low dark current and high‐detectivity near‐infrared (NIR)‐sensitive organic photodetector with a high‐resolution 508 pixels per inch (ppi) oxide thin‐film transistor (TFT) backplane to create a large‐area thin NIR detector, using processes that are compatible with flat‐panel display fabrication. The detector is characterized showing high uniformity and linearity. With the use of a NIR light source, the detector is capable of imaging the (pattern of) veins under the skin in reflection, leading to improved biometric authentication.