Highly Sensitive Flexible ZnO/PET Photodetector

Salah M. Saleh Al-Khazali; Husam  S. Al-Salman; A.  Hmood

doi:10.47758/ijnsn.v5i1.113

Salah M. Saleh Al-Khazali The General Directorate for Education in Najaf, Ministry of Education https://orcid.org/0000-0002-6029-5571
Husam S. Al-Salman University of Basrah, College of Science, Dept. of Physics, Basrah, Iraq.
A. Hmood University of Basrah, College of Science, Dept. of Physics, Basrah, Iraq.

DOI: https://doi.org/10.47758/ijnsn.v5i1.113

Keywords: ZnO, Flexible UV Photodetector, CBD Method

Abstract

Abstract:

Current study involves fabricate a photodetector based on ZnO nanorods for ultraviolet sensing application deposited onto a low cost flexible substrate of polyethylene terephthalate (PET) using chemical bath deposition (CBD) method. XRD diffraction data approved hexagonal structure (Wurtzite). Nanorod structure of Zinc Oxide were noticed utilizing field emission scanning electron microscopy with an average diameter of 150 to 225 nm. The energy bandgap of 3.27eV were obtained using UV–Vis spectroscopy measurement. The maximum responsivity value was 0.023A/W at a wavelength of 375nm. The photosensitivity (Sph), quantum efficiency (ƞ), response time, and recovery time were 1347.2, 837.53, 90.87s, and 114.57s under a UV light of 375nm at a bias voltage of 10V, respectively.