Author(s)

M. Fazail Khalid¹, Ibtisam Riaz¹, Rashid Jalil¹, Usamah Mahmood¹, Rehan Rahat Mir², Hafiz Amir Sohail¹

¹Department of Physics, University of Engineering and Technology, Lahore, Pakistan.
²Centre of Excellence in Solid State Physics, University of the Punjab, Lahore, Pakistan.

A higher value of the dielectric constant of h-BN makes it quite favourable material in energy storing device. The variation in dielectric constant was observed as a function of thickness. In this research work multilayers of Hexagonal Boron Nitride (h-BN) was fabricated by using the Chemical exfoliation method. Two solvents Dimethylformamide (DMF) and Isopropyl Alcohol (IPA) were used for the exfoliation of h-BN. Successful sonication of hexagonal boron nitride led to the formation of Boron Nitride nanosheets (BNNs). The stable dispersibility of h-BN in Dimethylformamide and Isopropyl Alcohol was confirmed by UV Visible Spectroscopy, X-ray diffraction (XRD) and Scanning electron microscopy (SEM) confirm the mono crystallite structure (002) and nanoflakes like morphology of h-BN respectively. This appropriate strategy offered a feasible route to produce multilayer of hexagonal boron nitride. After the successful fabrication of h-BN multilayers its dielectric properties were calculated by using LCR meter. Profilometer revealed the variation in thickness and value of Dielectric constant was calculated by using its formula.

Hexagonal Boron Nitride (h-BN), Boron Nitride Nanosheets (BNNs), Dimethylformamide (DMF), Isopropyl Alcohol (IPA)

Khalid, M. , Riaz, I. , Jalil, R. , Mahmood, U. , Mir, R. and Sohail, H. (2020) Dielectric Properties of Multi-Layers Hexagonal Boron Nitride. Materials Sciences and Applications, 11, 339-346. doi: 10.4236/msa.2020.116023.