Morphology control of single-crystalline Si3N4 nanomaterials

►Single-crystalline Si3N4 nanowires, nanobelts and nanosheets, were synthesized. ►Many Si3N4 nanowires were synthesized at low flow rate of N2 and low temperature. ►Many Si3N4 nanosheets were synthesized at high flow rate of N2 and high temperature. ►The morphology of Si3N4 nanomaterials can be controlled by temperature and flow rate.