<abstract xml:lang="en" xmlns="http://www.w3.org/1999/xhtml"><p>ZnO nanorod arrays were grown on a flexible Kapton tape using microwave-assisted chemical bath deposition. High crystalline properties of the produced nanorods were proven by X-ray diffraction patterns and field emission scanning electron microscopy. Additionally, the photoluminescence spectrum showed higher UV peaks compared with visible peaks, which indicates that the ZnO nanorods had high quality and low number of defects. The metal-semiconductor-metal (MSM) configuration was used to fabricate UV and hydrogen gas detectors based on the ZnO nanorods grown on a flexible Kapton tape. Upon exposure to 395 nm UV light, the UV device exhibited fast response and decay times of 37 ms and 44 ms, respectively, at a bias voltage of 30 V. The relative sensitivities of the gas sensor made of the ZnO nanorod arrays, at hydrogen concentration of 2 %, at room temperature, 150 °C and 200 °C, are 0.42, 1.4 and 1.75 respectively.</p></abstract>

ZnO nanorod arrays were grown on a flexible Kapton tape using microwave-assisted chemical bath deposition. High crystalline properties of the produced nanorods were proven by X-ray diffraction patterns and field emission scanning electron microscopy. Additionally, the photoluminescence spectrum showed higher UV peaks compared with visible peaks, which indicates that the ZnO nanorods had high quality and low number of defects. The metal-semiconductor-metal (MSM) configuration was used to fabricate UV and hydrogen gas detectors based on the ZnO nanorods grown on a flexible Kapton tape. Upon exposure to 395 nm UV light, the UV device exhibited fast response and decay times of 37 ms and 44 ms, respectively, at a bias voltage of 30 V. The relative sensitivities of the gas sensor made of the ZnO nanorod arrays, at hydrogen concentration of 2 %, at room temperature, 150 °C and 200 °C, are 0.42, 1.4 and 1.75 respectively.

Fast UV detection and hydrogen sensing by ZnO nanorod arrays grown on a flexible Kapton tape

Nano-Optoelectronics Research and Technology Laboratory (N.O.R.), School of Physics Universiti Sains Malaysia, Penang, 11800, Malaysia

Department of Physics, College of Science, University of Basrah, Basrah, Iraq

Materials Science-Poland

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

ZnO nanorod arrays were grown on a flexible Kapton tape using microwave-assisted chemical bath deposition. High crystalline properties of the produced nanorods...

Fast UV detection and hydrogen sensing by ZnO nanorod arrays grown on a flexible Kapton tape

Published Online: Apr 20, 2013

Page range: 180 - 185

DOI: https://doi.org/10.2478/s13536-012-0084-2

Keywords
fast response, UV detector, hydrogen gas sensor, ZnO nanorods, flexible Kapton tape

© 2013 Wroclaw University of Technology

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Fast UV detection and hydrogen sensing by ZnO nanorod arrays grown on a flexible Kapton tape

Published Online: Apr 20, 2013

Page range: 180 - 185

DOI: https://doi.org/10.2478/s13536-012-0084-2

Keywordsfast response, UV detector, hydrogen gas sensor, ZnO nanorods, flexible Kapton tape

© 2013 Wroclaw University of Technology

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Keywords
fast response, UV detector, hydrogen gas sensor, ZnO nanorods, flexible Kapton tape