A study on different morphological structures of zinc oxide nanostructures for humidity sensing application

• Published in: AIP Conference Proceedings
• Main Author: Ismail A.S.; Mamat M.H.; Malek M.F.; Abdullah M.A.R.; Sin M.D.; Rusop M.
• Format: Conference paper
• Language: English
• Published: American Institute of Physics Inc. 2016
• Online Access: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84984578704&doi=10.1063%2f1.4948828&partnerID=40&md5=a15ffa51f4f65e3bee00c8b2ca2578e2

Effects of different morphological structures of ZnO to the performance of the device in the humidity sensing have been studied. Two different kinds of nanostructures were obtained which are nanords and nanoflakes. From the surface morphology image, the ZnO nanoflakes has lower diameter size of 100 nm compared to ZnO nanorods of 250 nm. The ZnO nanoflakes are not aligned and has low porous structure compared to ZnO nanorods. The humidity sensor performance of ZnO nanorods has superior performance compared to ZnO nanoflakes. The sensitivity of the ZnO nanorods sensor is 3.20 which are almost two times higher than the ZnO nanoflakes of 1.65. The structural properties of the samples have been characterized using field emission scanning electron microscopy (FESEM) electrical properties has been characterized using current voltage (I-V) measurement. © 2016 Author(s).