Research on spectral-properties of nonpolar ZnO film on γ-LiAlO2

Authors :: Huang Tao-Hua
Zhou Sheng-Ming
Li Shu-Zhi
Han Ping
Lin Hui
Zhou Jian-Hua
Wang Jun
Zhang Rong
Zou Jun
Source :: Acta Physica Sinica. 57:430
Publication Year :: 2008
Publisher :: Acta Physica Sinica, Chinese Physical Society and Institute of Physics, Chinese Academy of Sciences, 2008.
Abstract: Nonpolar a-plane ZnO film was successfully grown on (302)γ-LiAlO2 substrate by pulsed laser deposition. The temperature of substrate was 500℃, the film was pure nonpolar a-plane ZnO. The FWHM of the peak of near band emission in the PL spectrum was found to be only 115 meV. Both polarized transmission spectra and polarized Raman spectra revealed the in-plane anisotropy of the nonpolar ZnO film by the shift of absorption edge and the change of intensity of Raman E2 mode.