• Fulltext

       

        Click here to view fulltext PDF


      Permanent link:
      https://www.ias.ac.in/article/fulltext/boms/043/0267

    • Keywords

       

      Piezoelectric potential; VING; nanogenerator; adsorption of NO$_2$.

    • Abstract

       

      Here, we report the adsorption effect of NO$_2$ on ZnO (100 nm) nanowires. We have studied the effect of adsorbed NO$_2$ molecules on ZnO nanowire-based energy harvester for an exposure time of 1, 2, 3, 4, 5 and 6 h in a sealedchamber at 50 ppm which yielded piezoelectric voltage of 543.6 mV, 834.6 mV, 1.071 V, 1.78 V, 1.969 V and 2.835 V, respectively. We have thoroughly investigated the behaviour of ZnO nanowires in the presence of NO$_2$ and observed a maximum output piezoelectric voltage of 2.835 V with a power density 158.2 mW cm$^{-2}$. This is the first time that ZnO based piezoelectric energy harvester is being used for the voltage enhancement in the presence of NO$_2$. We have used vertically integrated nanowire generator (VING) structure. X-ray diffraction pattern revealed the growth orientation ofZnO nanowires were along the $c$-axis from the substrate. ZnO nanowires were grown on indium tin oxide-coated polyethylene terephthalate substrates via a hydrothermal route. Surface morphology has been examined by scanning electron microscopy images and diameter of ZnO nanowires was found to be around 100 nm. Piezoelectric voltage has been generated by the VING by applying minute external force of $\sim$50 nN. Periodic output voltage peaks were being measured by picoscope 5204.

    • Author Affiliations

       

      MANSOOR AHMAD1 M K AHMAD1 N NAFARIZAL1 C F SOON1 A B SURIANI2 A MOHAMED2 M H MAMAT2 MUHAMMAD AZHAR IQBAL3 MUSARRAT JABEEN4

      1. Microelectronic and Nanotechnology–Shamsuddin Research Centre (MiNT-SRC), Faculty of Electrical and Electronic Engineering, Universiti Tun Hussein Onn Malaysia (UTHM), 86400 Parit Raja, Batu Pahat, Johor, Malaysia
      2. Department of Physics, Nanotechnology Research Centre, Faculty of Science and Mathematics, Universiti Pendidikan Sultan Idris, 35900 Tanjung Malim, Perak, Malaysia
      3. School of Sciences, University of Management and Technology, Lahore, Pakistan
      4. Department of Physics, Goverment Degree College for Women, Haveli Lakha, Pakistan
    • Dates

       
  • Bulletin of Materials Science | News

    • Dr Shanti Swarup Bhatnagar for Science and Technology

      Posted on October 12, 2020

      Prof. Subi Jacob George — Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bengaluru
      Chemical Sciences 2020

      Prof. Surajit Dhara — School of Physics, University of Hyderabad, Hyderabad
      Physical Sciences 2020

    • Editorial Note on Continuous Article Publication

      Posted on July 25, 2019

      Click here for Editorial Note on CAP Mode

© 2017-2019 Indian Academy of Sciences, Bengaluru.