Experimental and Simulation Studies of the Effects of Nanosecond Pulse Frequency on the Dielectric Motion of BNNSs

A Physical Model to Describe the Motion Behavior of BNNSs under Nanosecond Pulses

“…Polymer-based nanocomposites exhibit remarkable insulation properties, mechanical strength, and thermal conductivity, rendering them a highly promising avenue for research in the materials science domain. Consequently, research in this area has garnered considerable attention and remains a prominent area of focus [ 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 ]. Boron nitride nanosheets (BNNSs) are the two-dimensional counterpart of spherical graphene, with a B–N bond length of 1.45 Å, whereas graphene consists of carbon atoms arranged in a hexagonal lattice (1 = 10 −10 m), as seen Figure 1 a.…”

“…Exposing BNNSs to nanosecond electric pulses has recently been demonstrated as an effective method for investigating their fundamental properties [ 4 , 5 , 18 , 19 ]. The use of nanosecond pulses minimizes the heat accumulation effect, enabling researchers to focus on the electrical response of BNNSs.…”

“…Y. Mi et al [ 4 , 5 , 18 , 19 ] have conducted numerous studies of this nature, wherein they have discovered an intriguing occurrence pertaining to BNNSs. Specifically, under nanosecond pulses, a singular BNNS will rotate locally to align its long axis with the applied field.…”

“…Specifically, under nanosecond pulses, a singular BNNS will rotate locally to align its long axis with the applied field. Subsequently, multiple BNNSs will connect head-to-tail, ultimately forming a straight line in tandem with the direction of the applied field globally [ 4 , 5 ], as depicted in Figure 1 a.…”

“…They used the center-to-center distance ( d ) of two BNNSs to depict this global alignment and fitted the experimental data of d on time ( t ) with an exponential decay function as follows [ 4 ]: where d 0 , A , and n were fitting parameters. The fitting curve agrees well with the experimental data, as shown in Figure 1 b,c.…”