Modeling Single-Walled Boron Nitride Nanotube Pressure Sensor: Density Functional Study

摘要

We investigated the effect of uni-axial strain on different geometrical single-walled boron nitride nanotubes with different diameters and chiralities. In order to cover a wide range of possibilities in designing and fabricating pressure sensor devices, we applied uni-axial strain in both directions i.e., elongation and compression. We also investigated the relation between strain and the bond lengths when uni-axial strain is applied. Based on our calculations, all nanotubes under study followed the same trend with no significant effects of different diameters, chirality. In addition, stretching or compressing the nanotube will have a direct impact on the nanotube electrical properties as the quantum states available to electrons will be modified by strain which eventually modifies the nanotube conductivity.