DataVXAdvanced Materials TechnologiesPaper
journal article·2022-09

Air‐Stable Ultra‐Flexible Organic Photonic System for Cardiovascular Monitoring

Tomoyuki Yokota, Iwao Shirayama, Kenji Kuwada, Mari Koizumi, Wakako Yukita, Katsuyuki Morii, Hirohiko Fukagawa, Takahisa Shimizu, Kenjiro Fukuda, Takao Someya

Advanced Materials Technologies· Volume 7· Issue 9
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Source abstract

Abstract

Abstract Ultra‐flexible organic optical devices are increasingly attracting attention as devices for medical and healthcare applications because they can be directly attached to the skin and continuously monitor biological information in humans noninvasively. However, integrating different optical devices on the same ultra‐flexible substrate is difficult owing to the instability of the devices. In this study, the stability of ultra‐flexible organic light‐emitting diodes and photodiodes is successfully improved using an inverted structure that does not employ atmospherically unstable cathode materials. Furthermore, an ultra‐flexible organic pulse wave sensor is developed by integrating an organic light‐emitting diode and an organic photodiode on the same substrate.
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Research context

Energy storage

OpenAlex topics: Organic Light-Emitting Diodes Research · Luminescence and Fluorescent Materials · Organic Electronics and Photovoltaics

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Department of Electrical Engineering and Information Systems School of Engineering The University of Tokyo 7‐3‐1 Hongo, Bunkyo‐ku Tokyo 113–8656 Japan

Nippon Shokubai Co., Ltd. 5–8 Nishi Otabi‐cho, Suita Osaka 564–8512 Japan

Nippon Shokubai Research Alliance Laboratories Osaka University 2‐1 Yamadaoka Suita Osaka 565–0871 Japan

Japan Broadcasting Corporation (NHK) Science & Technology Research Laboratories 1‐10‐11 Kinuta, Setagaya‐ku Tokyo 157–8510 Japan

Center for Emergent Matter Science RIKEN, 2‐1 Hirosawa, Wako Saitama 351–0198 Japan

Thin‐Film Device Laboratory RIKEN, 2‐1 Hirosawa, Wako Saitama 351–0198 Japan

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