Laser-induced voltage effects in c-axis inclined NaxCoO2 thin films

被引：34

作者：

Wang, Shufang ^{[1
]}

Chen, Shanshan ^{[1
]}

Liu, Fuqiang ^{[1
]}

Yan, Guoying ^{[1
]}

Chen, Jinchun ^{[1
]}

Li, Huiling ^{[1
]}

Wang, Jianglong ^{[1
]}

Yu, Wei ^{[1
]}

Fu, Guangsheng ^{[1
]}

机构：

[1] Hebei Univ, Hebei Key Lab Optic Elect Informat & Mat, Baoding 071002, Peoples R China

来源：

APPLIED SURFACE SCIENCE | 2012年 / 258卷 / 19期

关键词：

Laser-induced voltage; NaxCoO2 thin films; Transverse thermoelectric effect; THERMOELECTRIC RESPONSE;

D O I：

10.1016/j.apsusc.2012.03.186

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Laser-induced voltage effects in c-axis inclined NaxCoO2 thin films have been studied by using different laser sources with the wavelength ranging from ultraviolet to far infrared. Due to the transverse thermoelectric effect, a giant open-circuit voltage signal with the peak voltage V-p of about 16 V is detected when the film surface is illuminated by an ultraviolet 308 nm pulsed laser with the laser energy on the film is about 1.5 mJ. Open-circuit voltage signals are also detected when the film is illuminated by the 532 nm and 10.6 mu m lasers. The results demonstrate that the c-axis inclined NaxCoO2 thin film has a great potential application in the detection of laser radiations for wide spectral range, especially in the weak ultraviolet pulsed laser detection. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：7330 / 7333

页数：4

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