Dielectric Properties of Multi-Layers Hexagonal Boron Nitride

• 作者: Hafiz Amir Sohail Ibtisam Riaz M. Fazail Khalid Rashid Jalil Rehan Rahat Mir Usamah Mahmood
• 来源期刊: 材料科学与应用期刊(英文)
• 学科: 工学
• 关键词: Hexagonal Boron Nitride (h-BN) Boron Nitride Nanosheets (BNNs) Dimethylformamide (DMF) Isopropyl Alcohol (IPA)
• 年，卷（期）: 2020,（6）
• 页码范围: 339-346
• 页数: 8页
• 分类号: TB3

摘要

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.