| Laser-induced voltage effects in CaaCoaO9 thin films on tilted LaAlO3（001） substrates grown by chemical solution deposition |
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| 作者姓名： | Wang Shu-Fang Chen Ming-Jing Zhao Shu-Rui Chen Jing-Chun He Li-Ping Yu Wei Wang Jiang-Long Fu Guang-Sheng |
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| 作者单位： | [1]College of Physics Science and Technology, Hebei University, Baoding 071002, China [2]Department of Physics and Electronic Engineering, Baoding University, Baoding 071002, China |
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| 基金项目： | Project supported by the Young Scientists Fund of the National Natural Science Foundation of China （Grant No. 10904030）, and the Natural Science Foundation of Hebei Province, China （Grant No. A2009000144）. |
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| 摘 要： | Laser-induced voltage effects in c-axis oriented Ca3Co4O9 thin films have been studied with samples fabricated on 10°tilted LaAIO3 （001） substrates by a simple chemical solution deposition method. An open-circuit voltage with a rise time of about 10 ns and full width at half maximum of about 28 ns is detected when the film surface is irradiated by a 308-nm laser pulse with a duration of 25 ns. Besides, opemcircuit voltage signals are also observed when the film surface is irradiated separately by the laser pulses of 532 nm and 1064 nm. The results indicate that Ca3Co4O9 thin films have a great potential application in the wide range photodetctor from the ultraviolet to near infrared regions.
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| 关 键 词： | 化学溶液沉积法 薄膜表面 开路电压 激光诱导 LaAlO3 生长 衬底 上升时间 |
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