Fiber-based quantum-dot pulse oximetry for wearable health monitoring with high wavelength selectivity and photoplethysmogram sensitivity  

作　　者：Ho Seung Lee Byeongju Noh Seong Uk Kong Yong Ha Hwang Ha-Eun Cho Yongmin Jeon Kyung Cheol Choi 

机构地区：[1]School of Electrical Engineering,Korea Advanced Institute of Science and Technology(KAIST),Daejeon,Republic of Korea [2]Department of Biomedical Engineering,Gachon University,Seongnam,Republic of Korea

出　　处：《npj Flexible Electronics》2023年第1期413-424,共12页npj-柔性电子（英文）

基　　金：supported by the Technology Innovation Program(20018379,Development of high-reliability light-emitting fiberbased woven wearable displays)funded By the Ministry of Trade,Industry&Energy(MOTIE,Korea);supported by the Bio&Medical Technology Development Program of the National Research Foundation(NRF)funded by the Korean government(MSIT)(No.2022M3E5E9018226);supported by National R&D Program through the National Research Foundation of Korea(NRF)funded by Ministry of Science and ICT(2021M3C1C3097646).

摘　　要：Increasing demand for real-time healthcare monitoring is leading to advances in thin and flexible optoelectronic device-based wearable pulse oximetry.Most previous studies have used OLEDs for this purpose,but did not consider the side effects of broad full-width half-maximum(FWHM)characteristics and single substrates.In this study,we performed SpO_(2)measurement using a fiber-based quantum-dot pulse oximetry(FQPO)system capable of mass production with a transferable encapsulation technique,and a narrow FWHM of about 30 nm.Based on analyses we determined that uniform angular narrow FWHM-based light sources are important for accurate SpO_(2)measurements through multi-layer structures and human skin tissues.The FQPO was shown to have improved photoplethysmogram(PPG)signal sensitivity with no waveguide-mode noise signal,as is typically generated when using a single substrate(30–50%).We successfully demonstrate improved SpO_(2)measurement accuracy as well as all-in-one clothing-type pulse oximetry with FQPO.

关 键 词：PULSE WAVEGUIDE QUANTUM 

分 类 号：TN253[电子电信—物理电子学]