Abstract:

ZnO (wurtzite) whiskers were grown via a floating zone method. The as-grown samples were characterized by X-ray diffraction and polarizing microscopy. Their characteristic peaks verify that the as-grown ZnO whiskers have excellent hexagonal wurtzite phase and (100) orientation. Raman scattering results show that  when  temperature was 93~706 K, the  frequency was red shift with the temperature increasing. When temperature was up to 500 K, the line width of E^high₂ mode broadened with the temperature increasing, ZnO elements turned into activity  status, Raman mode frequency was significant hardening.

Key words: zinc oxide, whisker, X-ray diffraction, Raman spectrum, polarizing microscope