Wang Shufang, Bai Zilong, Yan Guoying, Zhang Hongrui, Wang Jianglong, Yu Wei, Fu Guangsheng
Hebei Key lab of optic-electronic information and materials, College of Physics Science and Technology, Hebei University, Baoding 071002, China.
Opt Express. 2013 Jul 29;21(15):18336-43. doi: 10.1364/OE.21.018336.
Light-induced transverse thermoelectric effect has been investigated in c-axis tilted Bi(2)Sr(2)Co(2)O(y) thin films coated with a single-wall carbon nanotubes light absorption layer. Open-circuit voltage signals were detected when the sample surface was irradiated by different lasers with wavelengths ranging from ultraviolet to near-infrared and the voltage sensitivity was enhanced as a result of the increased light absorption at the carbon nanotubes layer. Moreover, the enhancement degree was found to be dependent on the laser wavelength as well as the absorption coating size. This work opens up new strategy toward the practical applications of layered cobaltites in photo-thermo-electric conversion devices.
在涂有单壁碳纳米管光吸收层的c轴倾斜Bi(2)Sr(2)Co(2)O(y)薄膜中研究了光致横向热电效应。当用波长范围从紫外到近红外的不同激光照射样品表面时，检测到开路电压信号，并且由于碳纳米管层光吸收的增加，电压灵敏度得到了提高。此外，发现增强程度取决于激光波长以及吸收涂层的尺寸。这项工作为层状钴酸盐在光热-电转换器件中的实际应用开辟了新策略。
