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Updated: Mar 19, 2026
Seedless Growth of Bismuth Nanowire Array via Vacuum Thermal Evaporation
Published on: December 21, 2015
Size-dependent crystalline fluctuation and growth mechanism of bismuth nanoparticles under electron beam irradiation
Sujuan Wu1, Yi Jiang1, Lijun Hu1
1College of Materials Science and Engineering, Chongqing University, Chongqing 400044, China. sujuan.wu@cqu.edu.cn lidong.sun@cqu.edu.cn and Electron Microscopy Center of Chongqing University, Chongqing University, Chongqing 400044, China.
Abstract:
Advanced nanofabrication requires accurate tailoring of various nanostructures with the assistance of electron or ion beam irradiation. However, evolution of the nanostructures under the beam irradiation significantly affects the fabrication process. It is thus of paramount importance to study the evolution behaviors and growth mechanism of the nanostructures. In this study, bismuth nanoparticles were selected to investigate crystalline fluctuation under electron beam irradiation via transmission electron microscopy. The results disclose size-dependent crystalline fluctuation of the nanoparticles. The particles exhibit crystalline and non-crystalline features for sizes of above 15 and below 4 nm, respectively, while a mixture of the two states is observed with sizes in between. The crystalline fluctuation facilitates the growth process of the particles when a crystalline particle is in contact with another non-crystalline one. This is promising for applications in nanofabrication where high quality interfaces are desired between two joining parts.
