Graphene-ZnO NWs Film for Large-Area UV Photodetector

Liu, F. , Yogeswaran, N., García Núñez, C. , Gregory, D. and Dahiya, R. (2018) Graphene-ZnO NWs Film for Large-Area UV Photodetector. In: 2018 IEEE Sensors, New Delhi, India, 28-31 Oct 2018, ISBN 9781538647073 (doi: 10.1109/ICSENS.2018.8589639)

Abstract

This work demonstrates large-area (~ 4cm 2 ) UV photodetector by heterogenous integration of graphene-ZnO nanowires (NWs) using a facile and cost-effective method. Owing to the low and wavelength-independent light absorption, it is difficult to obtain high-performance graphene-based photodetector (PD). The research presented here addresses this challenge by integrating light sensitive material (ZnO) on graphene. The huge sensitivity of ZnO NWs to UV light, combined with the high carrier mobility of graphene, enable the UV PD with a photoresponse up to 2100 A/W, and fast response times down to millisecond.

• Item Type: Conference Proceedings
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Dahiya, Professor Ravinder and Garcia Nunez, Dr Carlos and Yogeswaran, Mr Nivasan and Gregory, Professor Duncan and Liu, Mr Fengyuan
• Authors: Liu, F., Yogeswaran, N., García Núñez, C., Gregory, D., and Dahiya, R.
• College/School: College of Science and Engineering > School of Chemistry; College of Science and Engineering > School of Engineering; College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering
• ISSN: 2168-9229
• ISBN: 9781538647073
• Copyright Holders: Copyright © 2018 IEEE
• Publisher Policy: Reproduced in accordance with the copyright policy of the publisher