The Enhancement of Laser-Induced Transverse Voltage in Tilted Bi2Sr2Co2Oy Thin Films with a Graphite Light Absorption Layer
YAN Guo-Ying1,2, ZHANG Hui-Ling1, BAI Zi-Long1, WANG Shu-Fang1**, WANG Jiang-Long1**, YU Wei1, FU Guang-Sheng1,2
1The College of Physics Science and Technology, Hebei University, Baoding 071002 2School of Information Engineering, Hebei University of Technology, Tianjin 300401
Abstract：Laser-induced transverse voltage effect is investigated in c-axis tilted Bi2Sr2Co2Oy thin films coated with a graphite layer by using three different laser sources with wavelength ranging from ultraviolet to near-infrared. Due to the transverse thermoelectric effect, voltage signals are detected when the film surface is irradiated by these three lasers and the voltage sensitivity is enhanced as a result of the increasing light absorption at the graphite layer. This work demonstrates that the graphite can be used as an effective absorption layer for fabrication of light detectors based on the photo-thermo-electric conversion.
(Photodetectors (including infrared and CCD detectors))
引用本文:
. [J]. 中国物理快报, 2013, 30(4): 46801-046801.
YAN Guo-Ying, ZHANG Hui-Ling, BAI Zi-Long, WANG Shu-Fang, WANG Jiang-Long, YU Wei, FU Guang-Sheng. The Enhancement of Laser-Induced Transverse Voltage in Tilted Bi2Sr2Co2Oy Thin Films with a Graphite Light Absorption Layer. Chin. Phys. Lett., 2013, 30(4): 46801-046801.
2013, Vol. 30 
