Electro-optic effect in epitaxial ZnO:Mn thin films

被引：20

作者：

Nagata, T ^{[1
]}

Ashida, A ^{[1
]}

Fujimura, N ^{[1
]}

Ito, T ^{[1
]}

机构：

[1] Univ Osaka Prefecture, Grad Sch Engn, Dept Appl Mat Sci, Sakai, Osaka 5998531, Japan

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS | 2002年 / 41卷 / 11B期

关键词：

zinc oxide; electro-optic effect; wide band gap; optical switching; ferroelectric;

D O I：

10.1143/JJAP.41.6916

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We have studied the electro-optic effect of ZnO films. The use of ZnO which exhibits ferroelectricity with Li doping is believed to be one of the solutions for enhancing the electro-optic effect. In this paper, the birefringence shift measurement was performed for nondoped ZnO and Mn-doped ZnO films as the first step for evaluating the electro-optic effect of ZnO:Li film. Nondoped ZnO film exhibited poor dielectric property and no electro-optic response has been observed due to its large leakage current. Mn doping to ZnO led to a significant improvement of the large leakage current problem. The sample showed a linear electro-optic response, and we succeeded in measuring the electro-optic effect induced by dipolar polarizability at the ac bias voltage frequency above 10 kHz. Below this frequency, the electro-optic response includes the space charge effect.

引用

页码：6916 / 6918

页数：3

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