Journal
JOURNAL OF THE SOCIETY FOR INFORMATION DISPLAY
Volume 28, Issue 5, Pages 381-391Publisher
WILEY
DOI: 10.1002/jsid.891
Keywords
biometric authentication; large-area photodetector arrays; near-infrared organic photodiodes; vein detection
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Funding
- Flexlines project
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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.
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