Reflective second harmonic generation from ZnO thin films: A study on the Zn-O bonding

Kuang Yao Lo, Yi Jen Huang, Jung Y. Huang, Zhe Chuan Feng*, William E. Fenwick, Ming Pan, Ian T. Ferguson

*此作品的通信作者

研究成果: Article同行評審

25 引文 斯高帕斯(Scopus)

摘要

The structures of the Zn-O bonding in ZnO (0002) thin films prepared by metal organic chemical vapor deposition have been studied by reflective second harmonic generation (RSHG). The polar Zn-O bond on the top layer is not canceled out and presents 3 mm symmetrical structures on the well-grown ZnO (0002) surface. The average polar strength of the Zn-O bond is correlated with the quality of the ZnO (0002) thin film. The mirror symmetry is caused by the nonvanished polar of twin boundary due to the mismatch between the ZnO film and sapphire substrate and analyzed using s-polarized RSHG with s-polarized fundamental light irradiation. These results demonstrate that the Zn-O heteropolar bonds on the smooth ZnO surface contribute to the SHG intensity.

原文English
文章編號161904
期刊Applied Physics Letters
90
發行號16
DOIs
出版狀態Published - 30 四月 2007

指紋

深入研究「Reflective second harmonic generation from ZnO thin films: A study on the Zn-O bonding」主題。共同形成了獨特的指紋。

引用此