| 脉冲激光沉积Ag:BaTiO3纳米复合薄膜及其光学特性 |
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| 引用本文： | 杨 光,陈正豪.脉冲激光沉积Ag:BaTiO3纳米复合薄膜及其光学特性[J].物理学报,2006,55(8):4342-4346. |
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| 作者姓名： | 杨 光 陈正豪 |
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| 作者单位： | (1)华中科技大学光电子科学与工程学院,武汉 430074;中国科学院物理研究所,北京 100080; (2)中国科学院物理研究所,北京 100080 |
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| 基金项目： | 国家自然科学基金(批准号：5001161952)资助的课题. |
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| 摘 要： | 在MgO(100)基片上利用脉冲激光沉积技术制备了掺有Ag纳米颗粒的BaTiO3复合薄膜.通过X射线衍射对薄膜的结构进行了表征,利用透射电子显微镜对Ag纳米颗粒的尺寸、形态进行了观测,X射线光电子能谱结果表明Ag呈金属态.在410—500nm范围内观测到了Ag纳米颗粒引起的等离子振荡峰,随着后处理温度和Ag颗粒浓度的增加,吸收峰发生红移,并出现了双峰现象.
关键词：
金属纳米复合薄膜
激光沉积
光吸收
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| 关 键 词： | 金属纳米复合薄膜 激光沉积 光吸收 |
| 文章编号： | 1000-3290/2006/55(08)/4342-05 |
| 收稿时间： | 12 8 2005 12:00AM |
| 修稿时间： | 2005-12-082006-03-31 |
Optical properties of laser ablated Ag:BaTiO3 composite films |
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| Yang Guang and Chen Zheng-Hao.Optical properties of laser ablated Ag:BaTiO3 composite films[J].Acta Physica Sinica,2006,55(8):4342-4346. |
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| Authors: | Yang Guang and Chen Zheng-Hao |
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| Institution: | 1 School of Optoelectronics Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China;2Institute of Physics , Chinese Academy of Scienes , Beijing 100080, China |
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| Abstract: | Nanocomposite films composed of Ag particles embedded in BaTiO3 matrix were grown on MgO(100) substrates by pulsed laser deposition. The structures of the films were determined by X-ray diffraction. The size and shape of the Ag particles were observed by transmission electron microscopy. The X-ray photoelectron spectroscopy results showed that Ag is in the metallic state. The optical absorption properties were measured from 300 to 800nm, and the absorption peaks due to the surface plasmon resonance of Ag particles were observed. With increasing annealing temperature and Ag concentration, the peak absorption increased and shifted to longer wavelength (red-shift). |
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| Keywords: | metal nanocomposite films laser deposition optical absorption |
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