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ABSTRACT
Polyvinylchloride (PVC)/nickel oxide (NiO)/tungsten oxide (WO3) nanocomposite films were prepared via solution casting technique. The crystallinity, morphology, and the analysis of dispersion state of PVC/NiO/WO3 nanocomposite was carried out using X-ray diffraction (XRD) and scanning electron microscopy (SEM). The dielectric studies of nanocomposite films were investigated and a maximum dielectric constant of 2.3 with dielectric loss (tan δ) of 2.4 was attained. The EMI shielding studies were carried out in the X and Ku-band frequency range (8 GHz-18 GHz). The maximum SE of 15.78 dB in X-band and 12.05 dB in Ku-band was achieved for 75/20/5 compositions of the PVC/NiO/WO3 nanocomposite.
GRAPHICAL ABSTRACT
Acknowledgments
The authors Dr. M. Basheer Ahamed and Aqib Muzaffar highly acknowledge the Department of Science and Technology-Science and Engineering Research Board (DST-SERB), Government of India for supporting this research work under project number EMR/2016/006705.
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Notes on contributors
Aqib Muzaffar
Mr. Aqib Muzaffar is currently pursuing his Ph.D. degree in Physics, at the Department of Physics, School of Physical and Chemical Sciences, B. S. Abdur Rahman Crescent Institute of Science and Technology, Chennai-600048, Tamil Nadu, India. His research interest is mainly focused on nanomaterials and polymer nanocomposites for supercapacitor and electromagnetic interference (EMI) shielding applications.
M. Basheer Ahamed
Dr. M. Basheer Ahamed is a professor in the Department of Physics, B.S. Abdur Rahman Crescent Institute of Science and Technology, Chennai, Tamil Nadu, India. He has completed his Pre-Doctoral programme from the University of Madras and the Ph.D. degree in the field of Laser Technology from Anna University, Chennai, India. He has 33 years of teaching experience to undergraduate and postgraduate students of Engineering and Technology. He has 21 years of research experience in different areas of nanotechnology and Laser. He has published more than100 research papers in reputed International journals. He has to his credit 35 papers in National and International conferences, Ten book chapters and one book. Under his guidance, 8 Ph.D. scholars have received their Ph.D. degrees in the field of Lasers and nanomaterials. His current research interests include polymer nanocomposite materials, nanomaterials, nonlinear optics, laser materials and crystal growth.
Kalim Deshmukh
Kalim Deshmukh completed his M. Sc. degree in Physics from the Institute of Chemical Technology (ICT), Mumbai, India and Ph.D. degree in Physics from B. S. Abdur Rahman Crescent Institute of Science and Technology, Chennai-600048, Tamil Nadu, India. During his Ph.D, he worked on “Graphene oxide and transition metal oxide reinforced flexible polymer composites as high dielectric constant materials for energy storage applications”. Presently, he is working as a researcher at the New Technologies-Research Centre, University of West Bohemia, Pilsen, Czech Republic. He has over 15 years of research experience in synthesis, characterization and structure-property investigation of a wide range of polymeric materials, polymer blends and nanocomposites. He has over 80 research publications in the peer-reviewed international journals and 15 book chapters to his credit. He has actively participated and presented his research work in several international conferences and seminars. Moreover, he has been serving as a reviewer for several reputed international journals.
S. K. Khadheer Pasha
S. K. Khadheer Pasha obtained his M.Sc. degree in Physics from Osmania University, MPhil degree from Anna University, and PhD degree in physics from the Department of Physics, Vellore Institute of Technology (VIT), Vellore-632014, TN, India. He is currently working as a Senior Assistant Professor in the Department of Physics, VIT-AP University. He has about seven years of teaching and 12 years of research experience. Currently, he is guiding 5 PhD students working on wide range of research topics. His research interest is mainly focussed on the synthesis of nanocomposite materials for various applications such as energy storage, sensors, EMI shielding etc., He has published over 60 research articles in the peer reviewed international journals and 8 book chapters. In addition, he has been serving as a reviewer for several international journals.