Efficient noise suppression via controlling the optical cavity in near-infrared organic photoplethysmography sensors
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Yang, Zhao | - |
dc.contributor.author | Kim, Byung Gi | - |
dc.contributor.author | Jang, Woongsik | - |
dc.contributor.author | Wang, Dong Hwan | - |
dc.date.accessioned | 2024-03-18T05:30:22Z | - |
dc.date.available | 2024-03-18T05:30:22Z | - |
dc.date.issued | 2024-02 | - |
dc.identifier.issn | 2050-7526 | - |
dc.identifier.issn | 2050-7534 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/72889 | - |
dc.description.abstract | Herein, a high-sensitivity organic photodetector (OPD) that operates in the near-infrared region is proposed by controlling the micro-cavity effects. This strategy implements an extension of reactive wavelength in an organic-semiconductor-based active layer. Comprehensive analyses, including atomic force microscopy and energy-dispersive X-ray spectroscopy, confirm the enhanced surface morphology of the active layer despite elongated optical and electrical pathways. Moreover, electrochemical characterisation reveals an increase in shunt resistance and a reduction in defect density owing to increased vertical pathways. These improvements directly contribute to dark current suppression in the OPD, reducing it from 2.36 x 10(-8) A cm(-2) under reference conditions to 7.07 x 10(-10) A cm(-2) under optimal conditions. Consequently, both signal quality and the measurable signal range are significantly enhanced. The optimal performance point is red shifted from 760 to 830 nm via a customised spectral response that is more suitable for photoplethysmography (PPG) applications. The performance at 830 nm is as high as 3.35 x 10(13) Jones. The PPG test proves the practical applicability of the proposed OPD, thus showcasing its potential in applications such as health monitoring and other relevant fields. | - |
dc.format.extent | 11 | - |
dc.language | 영어 | - |
dc.language.iso | ENG | - |
dc.publisher | ROYAL SOC CHEMISTRY | - |
dc.title | Efficient noise suppression via controlling the optical cavity in near-infrared organic photoplethysmography sensors | - |
dc.type | Article | - |
dc.identifier.doi | 10.1039/d3tc04489k | - |
dc.identifier.bibliographicCitation | JOURNAL OF MATERIALS CHEMISTRY C, v.12, no.9, pp 3261 - 3271 | - |
dc.description.isOpenAccess | N | - |
dc.identifier.wosid | 001158898400001 | - |
dc.identifier.scopusid | 2-s2.0-85184895524 | - |
dc.citation.endPage | 3271 | - |
dc.citation.number | 9 | - |
dc.citation.startPage | 3261 | - |
dc.citation.title | JOURNAL OF MATERIALS CHEMISTRY C | - |
dc.citation.volume | 12 | - |
dc.type.docType | Article; Early Access | - |
dc.publisher.location | 영국 | - |
dc.subject.keywordPlus | SOLAR-CELLS | - |
dc.subject.keywordPlus | PHOTODETECTORS | - |
dc.subject.keywordPlus | RECOMBINATION | - |
dc.subject.keywordPlus | PHOTODIODES | - |
dc.subject.keywordPlus | ZNO | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalResearchArea | Physics | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Physics, Applied | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
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