期刊
SENSORS AND ACTUATORS B-CHEMICAL
卷 77, 期 1-2, 页码 463-467出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/S0925-4005(01)00726-2
关键词
PLD; SnO2; microsensor; Nd : YAG laser; MEMS
SnO2 thin films were fabricated by pulsed laser deposition (PLD) technique using Sn metallic target under ambient O-2 gas. X-ray diffraction (XRD) and atomic force microscopy (AFM) were used to investigate the morphology and structure of the films. From a study of the gas sensing characteristics of SnO2 films, it was evident that if the shorter wavelength of the laser beam was used for film deposition. the better sample was obtained. The sample, heated to 375 degreesC during ablation and post-annealed at 500 degreesC for 4 h, showed higher sensitivity compared to sample which was not heated. It can be explained, that the substrate heating is needed to compensate the kinetic energy of particles in laser plasma decreased due to loose-focusing. (C) 2001 Elsevier Science B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据