Defect-mediated photoluminescence enhancement in ZnO/ITO via MeV Cu++ ion irradiation

Khalil Ur Rehman; Muhammad Zubair; Ali Hassan; M. Imtiaz Khan; Ishaq Ahmad; Pervaiz Ahmad; Hazrat Ali; Tariq Ali; Muhammad Haris

doi:10.1016/j.apradiso.2020.109461

Defect-mediated photoluminescence enhancement in ZnO/ITO via MeV Cu⁺⁺ ion irradiation

Khalil Ur Rehman, Muhammad Zubair, Ali Hassan, M. Imtiaz Khan, Ishaq Ahmad, Pervaiz Ahmad, Hazrat Ali, Tariq Ali, Muhammad Haris

Department of Physics

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

Zinc oxide (ZnO) nanowires play a pivotal role in the nanoworld due to their broad range of characteristics and applications. In this work, structural and optical properties of ZnO nanowires grown on indium doped tin oxide (ITO) coated glass have been modified by copper (Cu⁺⁺) ions irradiation at constant energy of 0.7 MeV. The X-ray diffraction (XRD), photoluminescence (PL), and field emission scanning electron microscope (FESEM) are used to examine changes in the nanowires. XRD results show that the crystallite size first decreases and then increases with high ion dose while peaks’ intensity decreases continuously with increasing the dose. The absence of (102) plane after irradiation depicts the defects formation. FESEM clearly shows the damage that occurred in the density of nanowires and also depicts the reduced charging effect with increasing dose. The PL spectra indicate the strong near-band edge peak and green luminescence enhancement has been recorded due to low dose ion irradiation.

Original language	English
Article number	109461
Journal	Applied Radiation and Isotopes
Volume	169
DOIs	https://doi.org/10.1016/j.apradiso.2020.109461
Publication status	Published - Mar 2021

Keywords

Defects formation
Green luminescence
Ions irradiation
Radiation damage
ZnO nanowires

ASJC Scopus subject areas

Radiation

Access to Document

10.1016/j.apradiso.2020.109461

Cite this

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title = "Defect-mediated photoluminescence enhancement in ZnO/ITO via MeV Cu++ ion irradiation",

abstract = "Zinc oxide (ZnO) nanowires play a pivotal role in the nanoworld due to their broad range of characteristics and applications. In this work, structural and optical properties of ZnO nanowires grown on indium doped tin oxide (ITO) coated glass have been modified by copper (Cu++) ions irradiation at constant energy of 0.7 MeV. The X-ray diffraction (XRD), photoluminescence (PL), and field emission scanning electron microscope (FESEM) are used to examine changes in the nanowires. XRD results show that the crystallite size first decreases and then increases with high ion dose while peaks{\textquoteright} intensity decreases continuously with increasing the dose. The absence of (102) plane after irradiation depicts the defects formation. FESEM clearly shows the damage that occurred in the density of nanowires and also depicts the reduced charging effect with increasing dose. The PL spectra indicate the strong near-band edge peak and green luminescence enhancement has been recorded due to low dose ion irradiation.",

keywords = "Defects formation, Green luminescence, Ions irradiation, Radiation damage, ZnO nanowires",

author = "Rehman, {Khalil Ur} and Muhammad Zubair and Ali Hassan and Khan, {M. Imtiaz} and Ishaq Ahmad and Pervaiz Ahmad and Hazrat Ali and Tariq Ali and Muhammad Haris",

note = "Funding Information: The authors acknowledge support from the iThemba LABS, UNESCO, TWAS, and HEC Pakistan (Project No. 2421). Funding Information: The authors acknowledge support from the iThemba LABS, UNESCO , TWAS , and HEC Pakistan (Project No. 2421). Publisher Copyright: {\textcopyright} 2020 Elsevier Ltd",

year = "2021",

month = mar,

doi = "10.1016/j.apradiso.2020.109461",

language = "English",

volume = "169",

journal = "Applied Radiation and Isotopes",

issn = "0969-8043",

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TY - JOUR

T1 - Defect-mediated photoluminescence enhancement in ZnO/ITO via MeV Cu++ ion irradiation

AU - Rehman, Khalil Ur

AU - Zubair, Muhammad

AU - Hassan, Ali

AU - Khan, M. Imtiaz

AU - Ahmad, Ishaq

AU - Ahmad, Pervaiz

AU - Ali, Hazrat

AU - Ali, Tariq

AU - Haris, Muhammad

N1 - Funding Information: The authors acknowledge support from the iThemba LABS, UNESCO, TWAS, and HEC Pakistan (Project No. 2421). Funding Information: The authors acknowledge support from the iThemba LABS, UNESCO , TWAS , and HEC Pakistan (Project No. 2421). Publisher Copyright: © 2020 Elsevier Ltd

PY - 2021/3

Y1 - 2021/3

N2 - Zinc oxide (ZnO) nanowires play a pivotal role in the nanoworld due to their broad range of characteristics and applications. In this work, structural and optical properties of ZnO nanowires grown on indium doped tin oxide (ITO) coated glass have been modified by copper (Cu++) ions irradiation at constant energy of 0.7 MeV. The X-ray diffraction (XRD), photoluminescence (PL), and field emission scanning electron microscope (FESEM) are used to examine changes in the nanowires. XRD results show that the crystallite size first decreases and then increases with high ion dose while peaks’ intensity decreases continuously with increasing the dose. The absence of (102) plane after irradiation depicts the defects formation. FESEM clearly shows the damage that occurred in the density of nanowires and also depicts the reduced charging effect with increasing dose. The PL spectra indicate the strong near-band edge peak and green luminescence enhancement has been recorded due to low dose ion irradiation.

AB - Zinc oxide (ZnO) nanowires play a pivotal role in the nanoworld due to their broad range of characteristics and applications. In this work, structural and optical properties of ZnO nanowires grown on indium doped tin oxide (ITO) coated glass have been modified by copper (Cu++) ions irradiation at constant energy of 0.7 MeV. The X-ray diffraction (XRD), photoluminescence (PL), and field emission scanning electron microscope (FESEM) are used to examine changes in the nanowires. XRD results show that the crystallite size first decreases and then increases with high ion dose while peaks’ intensity decreases continuously with increasing the dose. The absence of (102) plane after irradiation depicts the defects formation. FESEM clearly shows the damage that occurred in the density of nanowires and also depicts the reduced charging effect with increasing dose. The PL spectra indicate the strong near-band edge peak and green luminescence enhancement has been recorded due to low dose ion irradiation.

KW - Defects formation

KW - Green luminescence

KW - Ions irradiation

KW - Radiation damage

KW - ZnO nanowires

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