| 利用光声效应研究ITO薄膜的光吸收率 |
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| 引用本文： | 郭文娟,袁萍,张进兵,张硕. 利用光声效应研究ITO薄膜的光吸收率[J]. 光学技术, 2013, 0(3): 272-275 |
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| 作者姓名： | 郭文娟 袁萍 张进兵 张硕 |
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| 作者单位： | 西北师范大学物理与电子工程学院甘肃省原子分子物理与功能材料重点实验室;天水华天科技股份有限公司;中国科学院化学研究所 |
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| 摘 要： | 利用基于压电效应的光声技术,研究了ITO薄膜在可见光波段的吸收特性,并与分光型光学薄膜分析系统NKD8000测得的数据进行了比较,得到了一致性较好的结果。实验证实:在可见光波段,该ITO薄膜的吸收率随波长呈非线性变化,在450nm附近吸收最强,随着波长的增加逐渐减小,在514.7nm处接近于零,之后又缓慢增大。
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| 关 键 词： | 光声光谱 光声效应 ITO薄膜 光吸收率 |
Study on optical absorptivity of ITO thin film by photoacoustic effect |
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| GUO Wenjuan,YUAN Ping,ZHANG Jinbing,ZHANG Shuo. Study on optical absorptivity of ITO thin film by photoacoustic effect[J]. Optical Technique, 2013, 0(3): 272-275 |
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| Authors: | GUO Wenjuan YUAN Ping ZHANG Jinbing ZHANG Shuo |
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| Affiliation: | 1.College of Physics and Electronic Engineering,Northwest Normal University,Key Laboratory of Atomic and Molecular Physics & Functional Materials of Gansu Province,Lanzhou 730070,China)(2.Huatian Technology Co.LTD.,Tianshui 741000,China)(3.Institute of Chemistry CAS,Beijing 100190) |
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| Abstract: | Using the photoacoustic technology which is based on the piezoelectric effects,the optical absorption characteristic of ITO thin film is studied by piezoelectric photoacoustic(PZPA) technique in optical light.The results are in a good agreement with the data obtained by the CDIR thin film analysis system NKD8000.Experiments prove that the optical absorption rate of the ITO film non-linearly changes with the wavelength in the visible light range,nearby 450nm,the absorption is the strongest,and the absorption decrease gradually along with the increase of the wavelength,in 514.7nm place,it is close to zero,then increase slowly. |
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| Keywords: | photoacoustic spectrum photoacoustic effect ITO thin films optical absorption rate |
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