Selective growth of boron nitride nanotubes (BNNTs) was demonstrated by plasma-enhanced pulsed laser deposition (PE-PLD). Although PLD is a physical vapor deposition technique for the growth of boron nitride (BN) thin films, ion sputtering induced by the plasma can eliminate the formation of BN thin films and lead to the so-called total resputtering region, in which, a pure phase of BNNTs can b...

Direct measurement of local phonon dispersion in individual nanostructures can greatly advance our understanding their electrical, thermal, and mechanical properties. However, such experimental measurements require extremely high detection sensitivity combined spatial, energy momentum resolutions, thus has been elusive. Here, we develop a four-dimensional electron loss spectroscopy (4D-EELS) te...

In the present research, nonlinear vibration in a coupled system of Boron-Nitride nano-tube reinforced composite (BNNTRC) oil pipes is studied. Single-walled Boron-Nitride nano-tubes (SWBNNTs) are arranged in a longitudinal direction inside Poly-vinylidene fluoride (PVDF) matrix. Damping and shearing effects of surrounded medium are taken into account by visco-Pasternak model. Based on piezoele...

In the present study, free vibration behaviors of of carbon nanotube (CNT) and boron nitride nanotube (BNNT) have been investigated via Eringen’s nonlocal continuum theory. Size effect has been considered via nonlocal continuum theory. Nanotubes have become popular in the world of science thanks to their characteristic properties. In this study, free vibrations of Boron Nitride Nanotube (BNNT) ...

Aluminium nitride (AlN) one-dimensional (1D) nanostructures, including crystalline nanowires, faceted nanotubes and conventional single-walled nanotubes, were investigated by means of density functional theory (DFT) using the generalized gradient approximation (GGA). While the larger diameter crystalline nanowires are the most favoured energetically of all these 1D nanostructures, the thick fac...

density functional theory (dft) calculations have been performed to investigating the effects of themolecular oxygen impurity on the quadrupole coupling constant (qcc) parameters of armchair and zigzagboron nitride nanotubes (bnnts). optimization processes have been performed to relax the original andimpure structures of the investigated bnnts. afterwards, the qcc parameters have been evaluated...

Sensitivity of Boron Nitride Nanotubes toward Biomolecules of Different Polarities Saikat Mukhopadhyay, Ralph H. Scheicher, Ravindra Pandey,* and Shashi P. Karna* Department of Physics, Michigan Technological University, Houghton, Michigan 49931, United States Department of Physics and Astronomy, Uppsala University, SE-751 20 Uppsala, Sweden U.S. Army Research Laboratory, Weapons and Materials ...

Spin polarized density functional theory has been used to investigate the structural stability and electronic properties of extrinsic and intrinsic defects in boron nitride nanotubes. Carbon substitutional defects under nitrogen rich and boron-rich growth conditions have the lowest heats of formation compared to boron and nitrogen antisites. Creating a defect reduces the band gap of the nanotub...

Citation: Li, Feng, Zhu, Zhonghua, Yao, Xiangdong, Lu, Gaoqing, Zhao, Mingwen, Xia, Yueyuan and Chen, Ying 2008-03-14, Fluorination-induced magnetism in boron nitride nanotubes from ab initio calculations, Applied physics letters, vol. 92, no. 10, pp. 102515. The following article appeared in Applied physics letters, vol. 92, no. 10, pp. 102515. and may be found at http://dx.doi.org/10.1063/1.2...