Paper
27 November 2012 Giant laser-induced thermoelectric voltage in c-axis inclined NaxCoO2 thin films
Shufang Wang, Haifeng Wang, Shanshan Chen, Zilong Bai, Guoying Yan, Jianglong Wang, Wei Yu, Guangsheng Fu
Author Affiliations +
Abstract
this paper, we have prepared c-axis inclined NaxCoO2 thin films on 10° and 20° tilted c-Al2O3 substrates and studied its light-induced thermoelectric voltage effect by using an ultraviolet pulsed laser as light source. A giant open-circuit voltage signal with the peak voltage Vp of tens of voltage was observed when the film surface was illuminated by the 308 nm pulsed radiation, and the Vp increased linearly with the inclination angle as well as the laser energy on the film. In addition, we found that Ag doping in NaxCoO2 films can improve the sensitivity of the thermoelectric voltage signal. The results demonstrate that c-axis inclined NaxCoO2 thin film has a great potential application in the detection of weak ultraviolet pulsed radiation.
© (2012) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Shufang Wang, Haifeng Wang, Shanshan Chen, Zilong Bai, Guoying Yan, Jianglong Wang, Wei Yu, and Guangsheng Fu "Giant laser-induced thermoelectric voltage in c-axis inclined NaxCoO2 thin films", Proc. SPIE 8555, Optoelectronic Devices and Integration IV, 85551F (27 November 2012); https://doi.org/10.1117/12.2001070
Advertisement
Advertisement
RIGHTS & PERMISSIONS
Get copyright permission  Get copyright permission on Copyright Marketplace
KEYWORDS
Thin films

Silver

Thermoelectric materials

Laser energy

Ultraviolet radiation

Pulsed laser operation

Doping

Back to Top