| 硝酸诱导金纳米带的晶种法制备及光谱表征 |
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| 引用本文： | 宋玉哲,董佳敏,刘 斌,王运福,李旭东,刘国汉.硝酸诱导金纳米带的晶种法制备及光谱表征[J].稀有金属材料与工程,2010,39(4):711-714. |
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| 作者姓名： | 宋玉哲 董佳敏 刘 斌 王运福 李旭东 刘国汉 |
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| 作者单位： | 1. 甘肃省科学院传感技术研究所,甘肃,兰州,730000
2. 兰州理工大学,甘肃,兰州,730000 |
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| 基金项目： | 甘肃省中青年科技基金 |
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| 摘 要： | 采用硝酸诱导的晶种法制备金单晶纳米带,利用TEM、HRTEM和UV-vis技术对产物进行形貌、结构表征和吸收性能分析。发现产物的形态有纳米带、纳米片和纳米颗粒,但以纳米带为主。纳米带为面心立方结构金单晶。UV-vis显示,产物的微弱吸收峰位于550nm和强吸收峰位于975nm,分别起源于纳米带横轴直径与长度方向的表面等离子体共振。金纳米带的生长机制进是,小尺寸纳米片在硝酸诱导作用下通过表面偶极作用进行自组装。
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| 关 键 词： | 单晶 金纳米带 晶种法 表面等离子共振吸收 |
| 收稿时间： | 2009/4/30 0:00:00 |
Nitric Acid Induced Seed-Mediated Growth of Gold Nanobelts and Their Spectroscopic Study |
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| Song Yuzhe,Dong Jiamin,Liu Bin,Wang Yunfu,Li Xudong and Liu Guohan.Nitric Acid Induced Seed-Mediated Growth of Gold Nanobelts and Their Spectroscopic Study[J].Rare Metal Materials and Engineering,2010,39(4):711-714. |
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| Authors: | Song Yuzhe Dong Jiamin Liu Bin Wang Yunfu Li Xudong and Liu Guohan |
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| Affiliation: | Institute of Sensor Technology, Gansu Academy of Sciences, Lanzhou 730000, China;Lanzhou University of Technology, Lanzhou 730000, China;Institute of Sensor Technology, Gansu Academy of Sciences, Lanzhou 730000, China;Institute of Sensor Technology, Gansu Academy of Sciences, Lanzhou 730000, China;Lanzhou University of Technology, Lanzhou 730000, China;Institute of Sensor Technology, Gansu Academy of Sciences, Lanzhou 730000, China |
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| Abstract: | Gold single-crystal nanobelts were synthesized by a nitric-acid-induced seed-mediated growth method. The morphologies and structures of the products were characterized by TEM and HRTEM; the absorption property was analyzed by UV-vis spectrum. TEM observation shows that nanobelts are dominant morphology with perfect fcc single-crystal structure and there are some nanoplates and nanoparticles. The UV-vis spectra reveal a strong longitudinal surface plasma resonance (SPR) band and a weak transverse SPR band centered at ~975 nm and ~550 nm, respectively. The growth mechanism of the nanobelts is the self-assembly of the adjacent nanoplates through surface dipole-dipole interaction with nitric acid induction |
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| Keywords: | single crystal gold nanobelt seed-mediated growth method surface plasma resonance |
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