Ma, S., Dahiya, A. S. , Christou, A. and Dahiya, R. (2022) All-Printed ZnO Nanowire Based High Performance Photodetectors. In: 2022 IEEE International Conference on Flexible and Printable Sensors and Systems (FLEPS), Vienna, Austria, 10-13 Jul 2022, ISBN 9781665442732 (doi: 10.1109/FLEPS53764.2022.9781570)
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Abstract
Resource-efficient manufacturing of electronics is needed to reduce the environmental impact of wasteful conventional electronic fabrication processes. This paper presents a resource-efficient printed electronics route for the fabrication of zinc oxide (ZnO) nanowire (NW) based high performance photodetectors (PDs). The all-printed devices are realised with high-quality as-grown ZnO NWs integrated onto flexible polyimide substrates using a contact printing method. An optimised high-resolution extrusion printer is employed to define the sensing channel (~15µm) using high viscosity silver (Ag) nanoparticle paste (>100,000 cP). The miniaturised all-printed PDs on PI substrates exhibit high-performance for UV detection with extremely high responsivity (~3 ×10 7 A/W), specific detectivity (~10 17 jones), photoconductive gain (~10 8 ), external quantum efficiency (~10 10 %) and I light /I dark ratio (~10 3 ). The presented work demonstrates a potential route for next-generation of sustainable electronics manufacturing, which is needed to alleviate the problem of chemical-wastage while retaining the transformative power of electronics.
| Item Type: | Conference Proceedings |
|---|---|
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | Dahiya, Dr Abhishek Singh and Dahiya, Professor Ravinder and Christou, Mr Adamos and Ma, Sihang |
| Authors: | Ma, S., Dahiya, A. S., Christou, A., and Dahiya, R. |
| College/School: | College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering |
| ISBN: | 9781665442732 |
| Published Online: | 10 June 2022 |
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