Laser-induced voltage effects in Ca_3Co_4O_9 thin films on tilted LaAlO_3(001) substrates grown by chemical solution deposition

作     者：王淑芳 陈明敬 赵书瑞 陈景春 何立平 于威 王江龙 傅广生 

作者机构：College of Physics Science and Technology Hebei University Department of Physics and Electronic Engineering Baoding University 

出 版 物：《Chinese Physics B》 (中国物理B（英文版）)

年 卷 期：2010年第19卷第10期

页      面：441-444页

核心收录：

学科分类：08[工学] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

基　　金：Project supported by the Young Scientists Fund of the National Natural Science Foundation of China (Grant No. 10904030) the Natural Science Foundation of Hebei Province, China (Grant No. A2009000144) 

主　　题：laser-induced voltage Ca3Co4O9 thin films chemical solution deposition 

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.