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

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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.
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Keywords: BAND STRUCTURE; BORON NITRIDE NANOTUBES; DENSITY OF STATES; PIEZORESISTIVE PRESSURE; UNI-AXIAL STRAIN

Document Type: Short Communication

Publication date: June 1, 2015

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  • Nanoscience and Nanotechnology Letters (NNL) is a multidisciplinary peer-reviewed journal consolidating nanoscale research activities in all disciplines of science, engineering and medicine into a single and unique reference source. NNL provides the means for scientists, engineers, medical experts and technocrats to publish original short research articles as communications/letters of important new scientific and technological findings, encompassing the fundamental and applied research in all disciplines of the physical sciences, engineering and medicine.
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