Self-assembly of gold nanoparticles into chain-like structures and their optical properties
Self-assembly of gold nanoparticles into chain-like structures and their optical properties
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金纳米粒子自组装成链状结构及其光学性质
DOI：
10.1007/s11051-011-0312-4
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发表时间：
2011-03
影响因子：
2.5
通讯作者：
Guo, Lin
中科院分区：
文献类型：
--
作者：
Zhang, Dong-Feng;Zhang, Qian;Yin, Peng-Gang;Niu, Li-Ya;Jiang, Li;Guo, Lin
根据成熟的柠檬酸盐还原法合成了直径约为15 nm的Au纳米粒子。结果发现，纳米粒子倾向于附着和融合到彼此形成链状结构与稳定剂的去除。紫外-可见吸收光谱和高分辨透射电镜表征为融合特征提供了有力的证据。根据高分辨透射电镜的观察，我们认为表面能的降低以及偶极-偶极相互作用是形成链状结构的原因。Sers活性研究表明，b2型谱带的强度与探针分子的浓度密切相关，进一步证实了b2型散射的化学效应特征。
Au nanoparticles with diameters of ca.15 nm were synthesized according to the well-developed citrate reduction method. It was found that the nanoparticles tended to attach and fuse into each other to form chain-like structures with the removal of the stabilizing agents. UV–Vis absorption and HRTEM characterizations provided solid evidence for the fused features. On the basis of the HRTEM observations, we believed the decreased surface energy as well as the dipole–dipole interaction is responsible for the formation of the chain-like structures. SERS activity investigation indicated that the intensities of the b2-type bands have close relation with the concentration of the probing molecules, which further confirmed the chemical effect character of the b2-type scatterings.
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DOI：
10.1007/978-1-4613-0985-7_6
发表时间：
1988
期刊：
--
影响因子：
--
作者：
R. Birke;J. Lombardi
通讯作者：
R. Birke;J. Lombardi
金纳米晶体在柠檬酸盐还原中的尺寸控制：柠檬酸盐的第三个作用
影响因子：
15
作者：
Ji, Xiaohui;Song, Xiangning;Peng, Xiaogang
通讯作者：
Peng, Xiaogang
影响因子：
3.7
作者：
Yuling Wang;Xiangqin Zou;Wen Ren;Weidong Wang;E. Wang
通讯作者：
Yuling Wang;Xiangqin Zou;Wen Ren;Weidong Wang;E. Wang
影响因子：
3.7
作者：
Dong-Feng Zhang;Li-Ya Niu;Li Jiang;P. Yin;Ling-Dong Sun;Hua Zhang;Rui Zhang;Lin Guo;Chunhua Yan
通讯作者：
Dong-Feng Zhang;Li-Ya Niu;Li Jiang;P. Yin;Ling-Dong Sun;Hua Zhang;Rui Zhang;Lin Guo;Chunhua Yan
影响因子：
3.9
作者：
Shipway, AN;Lahav, M;Willner, I
通讯作者：
Willner, I