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Photoluminescence effect on phosphorous irradiated zinc oxide (ZnO) nanotetrapods synthesized by simple thermal oxidation method

Bushra Aziz  -  Department of Physics, Women University of Azad Jammu & Kashmir, Bagh, Pakistan
Abdul Majid  -  Department of Physics, Majmaah University, College of Science Al-Zulfi, Saudi Arabia
*lubna ghani orcid  -  Department of Chemistry, University of Azad Jammu & Kashmir, Muzaffarabad, Pakistan
Iffat Aziz  -  Department of Chemistry, Quaid.e.Azam University, Islamabad, Pakistan
Received: 25 Jun 2020; Revised: 13 Oct 2020; Accepted: 4 Nov 2020; Available online: 30 Nov 2020; Published: 30 Nov 2020.

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Abstract

The irradiation effect on ZnO tetrapods was studied by Pelletron Tandem Accelerator at room temperature. ZnO tetrapods were synthesized by a simple thermal oxidation method by the vapors solid mechanism. The tetrapods were irradiated by phosphorous ion beam at different doses (1x1014, 5x1014, 1x1015, 2.5x1015, and 5x1015 ions/cm2) having irradiation energy of 1MeV. After irradiation, these samples were characterized by scanning electron microscope (SEM), photoluminescence (PL), and energy dispersive spectrum (EDS). Photoluminescence (PL) spectra of our samples show that near band emission and deep level emission peaks increases with increasing dose and these emission peaks are defects related peaks. The PL spectra showed that the emission at 3.31eV and 3.26 eV attributed to a conduction band of phosphorus-related acceptor transition and a donor to the acceptor pair transition, respectively. 

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Keywords: ZnO, tetrapods, acceptor transition

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