Kirigami and mogul-patterned ultra-stretchable high-performance ZnO nanowires-based photodetector

Kumaresan, Y. , Min, G., Dahiya, A. S. , Ejaz, A. , Shakthivel, D. and Dahiya, R. (2022) Kirigami and mogul-patterned ultra-stretchable high-performance ZnO nanowires-based photodetector. Advanced Materials Technologies, 7(1), 2100804. (doi: 10.1002/admt.202100804)

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Wearable UV photodetectors (PDs) have attracted interest recently for detection of excess exposure of the skin to the UV radiation. Despite numerous advances made in this direction, many challenges remain, particularly in terms of device reliability under extreme mechanical deformations simultaneously and self-powering, etc. Herein, a self-powered stretchable PD developed with kirigami-inspired honeycomb-patterned zinc oxide (ZnO) nanowires (NWs) and coupled with a triboelectric nanogenerator (TENG) is presented. After studying in detail the influence of ZnO NWs dispersion medium and metal-ZnO NWs contacts, a novel fabrication approach employing the structural engineering on NWs-elastomer composite is used to achieve high stretchability. The fabricated ZnO NWs-based UV PDs, embedded inside kirigami-inspired honeycomb-patterned elastomeric substrate, exhibit unprecedented stretchability (up to 125%) and high-performance with photo/dark current ratio of ≈5 × 105, responsivity of ≈54 A W−1, and a fast recovery time of 100 ms. Further, the stretchable PD is coupled with flexible TENGs to demonstrate a self-powered system for potential application in real-time UV radiation monitoring using advanced wearable healthcare technology.

Item Type:Articles
Glasgow Author(s) Enlighten ID:Dahiya, Dr Abhishek Singh and Dahiya, Professor Ravinder and Ejaz, Dr Ammara and Shakthivel, Dr Dhayalan and Min, Guanbo and Kumaresan, Dr Yogeenth
Authors: Kumaresan, Y., Min, G., Dahiya, A. S., Ejaz, A., Shakthivel, D., and Dahiya, R.
College/School:College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering
Journal Name:Advanced Materials Technologies
ISSN (Online):2365-709X
Published Online:04 September 2021
Copyright Holders:Copyright © 2021 The Authors
First Published:First published in Advanced Materials Technologies 7(1): 2100804
Publisher Policy:Reproduced under a Creative Commons License

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Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
301728Engineering Fellowships for Growth: Printed Tactile SKINRavinder DahiyaEngineering and Physical Sciences Research Council (EPSRC)EP/R029644/1ENG - Electronics & Nanoscale Engineering
301327`Hetero-print: A holistic approach to transfer-printing for heterogeneous integration in manufacturingPeter SkabaraEngineering and Physical Sciences Research Council (EPSRC)EP/R03480X/1ENG - Electronics & Nanoscale Engineering
304237Predictive Haptic COding Devices In Next Generation interfacesRavinder DahiyaEuropean Commission (EC)829186ENG - Electronics & Nanoscale Engineering