Abstract

A crownlike zinc oxide crystal composed of a hexagonal cap and a towerlike shaft was synthesized by vapor-phase transport method. Based on vapor–liquid–solid and vapor–solid mechanism, the growth model of the crystal was proposed. Under the excitation of pulse laser with 1150-nm wavelength, strong ultraviolet emission at 388 nm was observed. The peak position and the relationship between the emission intensity and excitation intensity demonstrated that the ultraviolet photoluminescence was induced by three-photon absorption. The photoluminescence characteristic of the sample was investigated.

Full Text
Published version (Free)

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call