Toward all-day wearable health monitoring: An ultralow-power, reflective organic pulse oximetry sensing patch

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Pulse oximetry sensors have been playing a key role as devices to monitor elemental yet critical human health states. Conventional pulse oximetry sensors, however, have relatively large power consumption, impeding their use as stand-alone, continuous monitoring systems that can easily be integrated with everyday life. Here, we exploit the design freedom offered by organic technologies to realize a reflective patch-type pulse oximetry sensor with ultralow power consumption. On the basis of flexible organic light-emitting diodes and organic photodiodes designed via an optical simulation of color-sensitive light propagation within human skin, the proposed monolithically integrated organic pulse oximetry sensor heads exhibit successful operation at electrical power as low as 24 mW on average. We thereby demonstrate that organic devices not only have form factor advantages for such applications but also hold great promise as enablers for all-day wearable health monitoring systems.
Publisher
AMER ASSOC ADVANCEMENT SCIENCE
Issue Date
2018-11
Language
English
Citation

SCIENCE ADVANCES, v.4, no.11

ISSN
2375-2548
URI
http://hdl.handle.net/10203/247632
Appears in Collection
EE-Journal Papers(저널논문)
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