Dielectric and conductivity investigation of polycarbonate-copper phthalocyanine electrospun nonwoven fibres for electrical and electronic application

ABSTRACT

Nonwoven fabric composite formulating polycarbonate (PC) and CuPc was fabricated using electrospun (CuPc: 0 to 10 wt%). Spatial presence of CuPc in composites was ascertained by virtue of Fourier-Transform-Infrared-Spectroscopy (FTIR) analysis and its characteristic peak in Small-Angle-X-ray-Scattering (SAXS) spectra. Dielectric and conductivity characteristics were analysed via Broadband-Impedance-Analyser, further dielectric properties induced morphology was inspected using Field-Emission-Scanning-Electron-Microscopy (FESEM). The effect of filler incorporation in matrix lead to a reduction in dielectric values with the least being 1.694 and consequent incremental loss characteristic was 0.1011 at a concentration of 2wt%, which also delivered maximum AC conductivity of (σ_AC) 1.08 × 10⁻⁶ S/cm.

GRAPHICAL ABSTRACT

KEYWORDS:

• Dielectric
• conductivity
• copper phthalocyanine

Acknowledgments

The authors would like to thank Dr. C. P. Ramnarayanan, Vice Chancellor, Defence Institute of Advanced Technology (DU), Ministry of Defence, Pune, for the support.

Additional information

Notes on contributors

Ankit Malik

Ankit Malik is currently pursuing Ph.D. from the Indian Institute of Science, Bangalore. He obtained M.Tech from Defence Institute of Advanced Technology (DU), Pune (Department of Defence Research and Development, India) and did his B.Tech from PDPM Indian Institute of Information Technology, Design and Manufacturing, Jabalpur. His current research interests include organic transistors, electrospinning and flexible electronic substrates.

RaviPrakash Magisetty

RaviPrakash Magisetty is currently a Research Scholar of Metallurgical and Materials Engineering, at Defence Institute of Advanced Technology, Ministry of Defence, India. He received a Bachelor of Technology (B.Tech) in Electrical & Electronic Engineering from the Jawaharlal Nehru Technological University in 2009, Masters of Technology (M.Tech) in Electrical & Electronic Engineering (Specialization: Power System Operation and Control) from Sri Venkateswara University in 2011. In 2011, he also performed research at the Sri Venkateswara University Research Laboratory under the support of an MHRD Distinguished Fellowship. His research interests include metamaterials, moletronics, energy storage devices, sensors, nanofabrication, semiconductor surfaces, carbon nanomaterials, magneto-dielectric radar absorbing polymer nanocomposites, hydrophobic composites and conducting polymers.

Anuj Shukla

Anuj Shukla received his master of science in physics from the Lucknow University, India and he accomplished his Ph.D. in soft matter physics from Martin-Luther University, Germany. He has previously worked at European Synchrotron Radiation Facility, Grenoble, France and Dortmund University, Germany. He currently works at DRDO, India. Dr. Shukla has more than 18 years of research experience in synthesis and characterization of nano-structured materials. His major research interests include: synthesis of microemulsions, magnetic nanoparticles, including core-shell structures, graphenic materials, metamaterials and their defence applications.

Balasubramanian Kandasubramanian

Balasubramanian Kandasubramanian is professor and head of department of Metallurgical and Materials Engineering, DIAT(DU), Ministry of Defense, India, and has been highly acclaimed for his contribution toward polymer processing and fabrication for various applications including smart textiles, hydrophobic coatings, ablative materials, fire retardant fabrics, waste-water treatments, etc. for defense applications. He was actively involved in the development of various research laboratories including Nano Texturing, Advanced Characterization (FESEM, HRTEM, SAXS), Additive Manufacturing, etc. The research activity of his research group can be classified under five categories: water management; smart textiles; biomimicking of polymers; structural composites; and advanced coatings for defense applications.