Title
High-Accuracy Photoplethysmography Array Using Near-Infrared Organic Photodiodes with Ultralow Dark Current
Author
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.
Publication year
2020
Abstract
Reflectance oximeters based on organic photodiode (OPD) arrays offer the potential to map blood pulsation and oxygenation via photoplethysmography (PPG) over a large area and beyond the traditional sensing locations. Here, an organic reflectance PPG array based on 16 × 16 OPD pixels is developed. The individual pixels exhibit near-infrared sensitivity up to ≈950 nm and low dark current density in the order of 10−6 mA cm−2. This results in high-quality PPG signals. Analysis of the full PPG waveform yields insight on the artery stiffness and the quality of blood circulation, demonstrating the potential of these arrays beyond pulse oximetry and heart-rate calculation.
Subject
Bulk heterojunction
Heartbeat
Organic photodiodes
Photoplethysmography
Pulse oximetry
To reference this document use:
http://resolver.tudelft.nl/uuid:73ff8ea9-5e45-4d2a-afdd-0a3a85efde51
DOI
https://doi.org/10.1002/adom.201901989
TNO identifier
955302
Publisher
Wiley-VCH Verlag
ISSN
2195-1071
Source
Advanced Optical Materials, 8 (8)
Document type
article