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Size-tunable uniform gold octahedra: fast synthesis, characterization, and plasmonic properties
Lu, Yonggang1,2; Zhang, Haibin1,2; Wu, Fan2; Liu, Hong1; Fang, Jingzhong1,2
2017
发表期刊RSC Advances
ISSN2046-2069
卷号7期号:30页码:18601-18608
摘要A modified polyol process was developed to synthesize uniform and high-purity gold (Au) octahedra in a refluxing 1,5-pentanediol (PD) solution by introducing the cationic surfactant poly(diallyldimethylammonium) chloride (PDDA). Well-defined octahedral Au nanocrystals (NCs) with sizes ranging from 30 to 110 nm could be facilely and precisely prepared in high yield by controlling the experimental parameters. Our study indicates that the surfactant PDDA with the preferential adsorption on the {111} planes of Au nuclei plays a crucial role for the controllable synthesis of uniform octahedral Au NCs. Moreover, the size-dependent optical properties of Au nanooctahedra were systematically investigated. The surface plasmon resonance (SPR) absorption peaks were red-shifted from 536 to 613 nm with the increasing sizes. It is promising that octahedral Au NCs with the size-dependent plasmonic properties are potential candidates for a broad range of applications related to optics, metamaterial, biomedicine, and catalysis. © The Royal Society of Chemistry.
关键词Cationic surfactants - Dyes - Gold - Plasmons - Surface active agents - Surface plasmon resonance
收录类别SCI ; Ei
语种英语
文献类型期刊论文
条目标识符http://ir.ioe.ac.cn/handle/181551/8885
专题轻量化中心
作者单位1.Lightweight Optics and Advanced Materials Center, Institute of Optics and Electronics, Chinese Academy of Sciences, Chengdu; 610209, China;
2.University of Chinese Academy of Sciences, Beijing; 100049, China
推荐引用方式
GB/T 7714
Lu, Yonggang,Zhang, Haibin,Wu, Fan,et al. Size-tunable uniform gold octahedra: fast synthesis, characterization, and plasmonic properties[J]. RSC Advances,2017,7(30):18601-18608.
APA Lu, Yonggang,Zhang, Haibin,Wu, Fan,Liu, Hong,&Fang, Jingzhong.(2017).Size-tunable uniform gold octahedra: fast synthesis, characterization, and plasmonic properties.RSC Advances,7(30),18601-18608.
MLA Lu, Yonggang,et al."Size-tunable uniform gold octahedra: fast synthesis, characterization, and plasmonic properties".RSC Advances 7.30(2017):18601-18608.
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