| 纳米结构Pt膜上CO吸附的异常红外效应机理研究 |
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| 引用本文： | 黄晓菁,吴晨旭,陈友江,林海,姜冬华,孙世刚.纳米结构Pt膜上CO吸附的异常红外效应机理研究[J].物理学报,2005,54(1):429-433. |
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| 作者姓名： | 黄晓菁 吴晨旭 陈友江 林海 姜冬华 孙世刚 |
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| 作者单位： | (1)厦门大学固体表面物理化学国家重点实验室,厦门 361005; (2)厦门大学物理系软凝聚态研究室,厦门 361005; (3)厦门大学物理系软凝聚态研究室,厦门 361005;集美大学理学院物理系,厦门 361021 |
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| 基金项目： | 国家自然科学基金(批准号:10225420，90206039，20021002)及福建省自然科学基金(批准号: A0210019)资助的课题. |
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| 摘 要： | CO吸附在经方波电势处理后的纳米结构Pt金属膜电极上可观察到异常红外效应（AIREs）.在实验基础上用粒子间的相互作用和电子-空穴衰减机理分析、模拟了AIREs，表明Pt金属表面的纳米岛状结构增强了CO分子间及CO分子与纳米结构表面的相互作用，电子-空穴衰减引起的能量转移和粒子间相互作用的增强可以导致异常红外吸收谱线变化特征的出现.
关键词：
异常红外效应
粒子相互作用
电子-空穴衰减
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| 关 键 词： | 异常红外效应 粒子相互作用 电子-空穴衰减 |
| 收稿时间： | 2003-11-03 |
| 修稿时间： | 4/1/2004 12:00:00 AM |
Studies on the abnormal IR effects for CO adsorption on nanostructured Pt thin films |
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| Huang Xiao-Jing,Wu Chen-Xu,Chen You-Jiang,Lin Hai,Jiang Dong-Hua and Sun Shi-Gang.Studies on the abnormal IR effects for CO adsorption on nanostructured Pt thin films[J].Acta Physica Sinica,2005,54(1):429-433. |
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| Authors: | Huang Xiao-Jing Wu Chen-Xu Chen You-Jiang Lin Hai Jiang Dong-Hua and Sun Shi-Gang |
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| Abstract: | The abnormal IR effects(AIREs) of the adsorption of CO on electrodes made of Pt nanostructured thin films generated in square wave potential treatment were obs erved. Based on the experimental results, the AIREs were analysed and simulated by taking into consideration of the interparticle interaction and the electron- hole damping. The results illustrate that the islanded nanostructured Pt surface s give rise to the interactions between CO molecules as well as between CO molec ules and nanostructured Pt surface. The energy transfer due to electron_hole dam ping and the enhancement of interparticle interaction are the important cause of the changes of IR absorption spectra. |
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| Keywords: | abnormal IR effects inter-particle interaction electron-hole damping |
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