MICROSCOPIC CHARACTERIZATION AND HRTEM IMAGES OF BORON NITRIDE NANOTUBES
氮化硼纳米管的显微表征及其高分辨成像研究

Multi-walled boron nitride nanotubes (BNNTs) synthesized by chemical vapor deposition were revealed to possess a definite stacking order (dominant r-BN stacking) and preferential zigzag chirality. Based on the microscopic characters of BNNTs, structure models were built and computer simulations of HRTEM images were carried out. It was found that HRTEM images of BNNTs with r-BN stacking are sensitive to the wall number, tubes diameter and angle of observations. Appearance of moire fringe on the HRTEM image of tube body was proposed to judge the existance of r-BN stacking.