Abstract

Light-induced transverse thermoelectric effect is investigated in incline-oriented Bi₂Sr₂Co₂O_y thin films covered with a graphite light absorption layer. Upon the illumination of a 980 nm cw laser, an enhanced voltage signal is detected and the improvement degree is found to be dependent on the thickness of the graphite layer. A two-dimensional (2D) heat transport model using the finite-difference method provides a reasonable explanation to the experimental data. Present results give some valuable instructions for the design of light absorption layers in this type of detector.

© 2015 Chinese Laser Press

Dependence of oxygen content on transverse thermoelectric effect in tilted Bi₂Sr₂Co₂O_y thin films

Guoying Yan, Zilong Bai, Shufang Wang, Liqing Sun, Jianglong Wang, and Guangsheng Fu
Appl. Opt. 53(19) 4211-4215 (2014)

The enhancement of photo-thermo-electric conversion in tilted Bi₂Sr₂Co₂Oy thin films through coating a layer of single-wall carbon nanotubes light absorber

Shufang Wang, Zilong Bai, Guoying Yan, Hongrui Zhang, Jianglong Wang, Wei Yu, and Guangsheng Fu
Opt. Express 21(15) 18336-18343 (2013)

Epitaxial Bi₂Sr₂Co₂O_y thin films as a promising p-type transparent conducting oxides

Shufang Wang, Liqing Sun, Hongrui Zhang, Dogheche Elhadj, Jianglong Wang, and Guangsheng Fu
Opt. Mater. Express 4(10) 2209-2214 (2014)

Enhanced light-induced transverse thermoelectric effect in c-axis inclined BiCuSeO thin films via Pb doping

Lian Wang, Guoying Yan, Guoyi Dong, Shuang Qiao, Guangsheng Fu, and Shufang Wang
Opt. Mater. Express 6(8) 2537-2544 (2016)

Light-induced transverse voltage effect in c-axis inclined BiCuSeO single crystalline thin films

Guoying Yan, Lian Wang, Shuang Qiao, Xiaolin Wu, Shufang Wang, and Guangsheng Fu
Opt. Mater. Express 6(2) 558-565 (2016)