Synthesis of rhombic and triangular cross-sectional AlN nanorods on Si substrate via thermal CVD

Faceted one-dimensional (1D) nanostructures have some peculiar properties over circular-cross-section ones, therefore their preparation have attracted much attention over the past decades. In this contribution, wurtzite AlN nanorods with rhombic and triangular cross-sections were obtained on bare Si substrate through the nitridation of Al powder in ammonia/nitrogen atmosphere. The formation of the faceted AlN nanostuctures was briefly discussed. The novel AlN nanostructures obtained are of significance for further enriching the 1D AlN systems.

Graphical abstractIn this work AlN nanorods with rhombic and triangular cross-sections were obtained on bare Si substrate through the nitridation of Al powder, which further enriches the 1D AlN materials.Figure optionsDownload full-size imageDownload as PowerPoint slide