PREPARATION OF HIGH QUALITY NANOCOMPOSITES OF CuO/TiO2 WITH Ar+ IONS IRRADIATION WITH ENHANCED PHOTOELECTRONIC PROPERTIES

Urfa Muneer, Shehla Honey, Nargis Bano (), Muhammad Ehsan Mazhar, Hassan Mehmood, Katlego Makgopa, Javed Ahmad, Jamil Asim, M. Maaza, Sadia Malik and Nadeem Arif
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Urfa Muneer: Department of Physics, University of Okara, Okara, Pakistan
Shehla Honey: Department of Physics, University of Okara, Okara, Pakistan†Centre for Nanosciences, University of Okara, Okara, Pakistan§UNESCO-UNISA Africa Chair in Nanosciences/Nanotechnology, College of Graduate Studies, University of South Africa, Muckleneuk Ridge, P. O. Box 392, Pretoria, South Africa¶Nanosciences African Network (NANOAFNET), iThemba LABS, National Research Foundation, Old Faure Road, P. O. Box, 722, Somerset West 7129, South Africa∥NPU-NCP Joint International Research Center on Advanced Nanomaterials and Defects Engineering, Northwestern Polytechnical University, Xi’an 710072, P. R. China
Nargis Bano: ��Department of Physics and Astronomy College of Science, King Saud University, P. O. Box 2455, 11451 Riyadh, Saudi Arabia
Muhammad Ehsan Mazhar: *Department of Physics, Bahuaddin Zakariya University, Multan, Pakistan
Hassan Mehmood: ��†Institute of Physics, The Islamia University of Bahawalpur, 63100, Bahawalpur, Pakistan
Katlego Makgopa: ��‡Department of Chemistry, Faculty of Science, Tshwane University of Technology, South Africa
Javed Ahmad: *Department of Physics, Bahuaddin Zakariya University, Multan, Pakistan
Jamil Asim: �§Faculty of Computer Science and Information Technology, Universiti Malaysia Sarawak, Malaysia
M. Maaza: �UNESCO-UNISA Africa Chair in Nanosciences/Nanotechnology, College of Graduate Studies, University of South Africa, Muckleneuk Ridge, P. O. Box 392, Pretoria, South Africa¶Nanosciences African Network (NANOAFNET), iThemba LABS, National Research Foundation, Old Faure Road, P. O. Box, 722, Somerset West 7129, South Africa
Sadia Malik: �¶Government Sadiq College Women University Bahawalpur, Pakistan
Nadeem Arif: Department of Physics, University of Okara, Okara, Pakistan

Surface Review and Letters (SRL), 2025, vol. 32, issue 12, 1-12

Abstract: In this research work, nanocomposites of CuO/TiO2 were initially fabricated using drop casting method. Later on, these nanocomposites were irradiated for the first time by a beam of Argon ions (Ar+) by keeping the fluence rates of 1×1014 ions cm−2, 1×1015 ions cm−2, and 1×1016 ions cm−2, respectively. In order to observe structural and optical properties of un-irradiated and irradiated nanocomposites, Raman Spectroscopy, Energy Dispersive X-ray (EDX), Scanning Electron Microscopy (SEM), Transmission Electron Microscopy (TEM), Photoluminescence (PL) and Diffuse Reflectance Spectroscopy (DRS) analysis were performed. From Raman analysis, vibration modes confirmed the presence of different phases of TiO2 and CuO. EDX analysis clearly demonstrates the presence of Cu, Ti, and O peaks. SEM images depict agglomerated spherical nanoparticles having diameters in the range of 40–94nm. From TEM analysis, mean diameter of 56.1nm is observed for unirradiated and 33.7nm for Ar+ irradiated CuO/TiO2 nanoparticles in nanocomposite for fluence rates of 1×1014 ions cm−2, 1×1015 ions cm−2, and 1×1016 ions cm−2. HR-TEM and SAED images represent the polycrystalline nature of these nanocomposites.Among the three peaks of PL spectra in UV–Visible region, first two peaks were observed at 356nm, and 419nm but the third peak is little shifted from 488nm with the increase in fluence rate. Values of band gap are reduced from 3.29eV to 3.17eV as the fluence rate is increased, as calculated from results of diffuse reflectance spectroscopy.

Keywords: NPs; nanocomposites; argon ions; irradiation; TEM; SEM; RAMAN; DRS; PL (search for similar items in EconPapers)
Date: 2025
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DOI: 10.1142/S0218625X25500106

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