Self-sacrificing template route to novel patterns of radially aligned Bi₂(Se, S)₃ nanorods and Bi₂Se₃ flakes

A facile and selective self-sacrificing template-like conversion process has been developed to produce both high-quality flower-like patterns of radially aligned Bi₂(Se, S)₃ nanorods and Bi₂Se ₃ nanoflakes at low temperature. In this process, the patterns of radially aligned Bi₂Se₃ nanorod precursors act as both the source materials and template to confine the growth of final products. The possible growth mechanism was discussed based on the experiments. This novel radially aligned morphology may find uses in a variety of areas such as the fabrication of advanced electronic and opto-electronic nanodevices.