Photodiodes embedded within electronic textiles

Satharasinghe, A ORCID: https://orcid.org/0000-0002-7124-8228, Hughes-Riley, T ORCID: https://orcid.org/0000-0001-8020-430X and Dias, T ORCID: https://orcid.org/0000-0002-3533-0398, 2018. Photodiodes embedded within electronic textiles. Scientific Reports, 8 (1): 16205. ISSN 2045-2322

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Abstract

A novel photodiode-embedded yarn has been presented and characterized for the first time, offering new possibilities for applications including monitoring body vital signs (including heart rate, blood oxygen and skin temperature) and environmental conditions (light, humidity and ultraviolet radiation). To create an E-Textile integrated with electronic devices that is comfortable, conformal, aesthetically pleasing and washable, electronic components are best integrated within the structure of a textile fabric in yarn form. The device is first encapsulated within a protective clear resin micro-pod before being covered in a fibrous sheath. The resin micro-pod and covering fibres have a significant effect on the nature of light received by the photoactive region of the device. This work characterised the effects of both encapsulating photodiodes within resin micro-pods and covering the micro-pod with a fibrous sheath on the opto-electronic parameters. A theoretical model is presented to provide an estimate for these effects and validated experimentally using two photodiode types and a range of different resin micro-pods. This knowledge may have wider applications to other devices with small-scale opto-electronic components. Wash tests confirmed that the yarns could survive multiple machine wash and drying cycles without deterioration in performance.

Item Type:	Journal article
Publication Title:	Scientific Reports
Creators:	Satharasinghe, A., Hughes-Riley, T. and Dias, T.
Publisher:	Springer Nature
Date:	1 November 2018
Volume:	8
Number:	1
ISSN:	2045-2322
Identifiers:	Number Type 10.1038/s41598-018-34483-8 DOI 34483 Publisher Item Identifier
Rights:	Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
Divisions:	Schools > School of Art and Design
Record created by:	Linda Sullivan
Date Added:	08 Nov 2018 16:36
Last Modified:	09 Jul 2019 12:50
URI:	https://irep.ntu.ac.uk/id/eprint/34874

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