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Atom Absorption Energy Directed Symmetry-Breaking Synthesis of Au-Ag Hierarchical Nanostructures and Their Efficient Photothermal Conversion

文献类型：期刊论文

作者Zeng, Pan1,3; Hang, Lifeng2; Zhang, Guofeng1; Wang, Yifan1,3; Chen, Zhiming1,3; Yu, Jie1; Zhang, Tao1,4; Cai, Weiping1; Li, Yue1,3
刊名SMALL
出版日期2022-09-30
ISSN号1613-6810
关键词atom absorption energy growth mechanisms hierarchical nanostructures photothermal conversion symmetry-breaking synthesis
DOI10.1002/smll.202204748
通讯作者Zhang, Tao(tao.zhangt@ntu.edu.sg) ; Li, Yue(yueli@issp.ac.cn)
英文摘要Asymmetric plasmonic hierarchical nanostructures (HNs) are of great significance in optics, catalysis, and sensors, but the complex growth kinetics and lack of fine structure design limit their practical applications. Herein, a new atom absorption energy strategy is developed to achieve a series of Au-Ag HNs with the continuously tuned contact area in Janus and Ag island number/size on Au seeds. Different from the traditional passive growth mode, this strategy endows seed with a hand to capture the hetero atoms in a proactive manner, which is beyond the size, shape, and assembles of Au seed. Density functional theory reveals ththe adsorption of PDDA on Au surface leads to lower formation energy of Au-Ag bonds (-3.96 eV) than FSDNA modified Au surface (-2.44 eV). The competitive adsorption of two ligands on Au seed is the decisive factor for the formation of diverse Au-Ag HNs. In particular, the Au-Ag-2 HNs exhibit outstanding photothermal conversion capability in the near-infrared window, and in vivo experiments verify them as superior photothermal therapy agents. This work highlights the importance of the atom absorption energy strategy in unlocking the diversity of HNs and may push the synthesis and application of superstructures to a higher level.
WOS关键词METAL NANOCRYSTALS ; CORE-SHELL ; STABILITY ; GROWTH
资助项目National Science Fund for Distinguished Young Scholars[51825103] ; Natural Science Foundation of China[52001306] ; Natural Science Foundation of China[51903162] ; Natural Science Foundation of China[52171232] ; HFIPS Director's Fund[YZJJZX202019] ; Scientific Instrument Developing Project of the Chinese Academy of Sciences[E14BBGU52G1]
WOS研究方向Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
语种英语
出版者WILEY-V C H VERLAG GMBH
WOS记录号WOS:000862086100001
资助机构National Science Fund for Distinguished Young Scholars ; Natural Science Foundation of China ; HFIPS Director's Fund ; Scientific Instrument Developing Project of the Chinese Academy of Sciences
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/129155]  
专题中国科学院合肥物质科学研究院
通讯作者Zhang, Tao; Li, Yue
作者单位1.Chinese Acad Sci, HFIPS, Inst Solid State Phys, Key Lab Mat Phys, Hefei 230031, Peoples R China
2.Nanyang Technol Univ, Sch Phys & Math Sci, 21 Nanyang Link, Singapore 637371, Singapore
3.Univ Sci & Technol China, Hefei 230026, Peoples R China
4.Guangdong Second Prov Gen Hosp, Dept Med Imaging, Guangzhou 518037, Peoples R China
推荐引用方式
GB/T 7714		 Zeng, Pan,Hang, Lifeng,Zhang, Guofeng,et al. Atom Absorption Energy Directed Symmetry-Breaking Synthesis of Au-Ag Hierarchical Nanostructures and Their Efficient Photothermal Conversion[J]. SMALL,2022.
APA Zeng, Pan.,Hang, Lifeng.,Zhang, Guofeng.,Wang, Yifan.,Chen, Zhiming.,...&Li, Yue.(2022).Atom Absorption Energy Directed Symmetry-Breaking Synthesis of Au-Ag Hierarchical Nanostructures and Their Efficient Photothermal Conversion.SMALL.
MLA Zeng, Pan,et al."Atom Absorption Energy Directed Symmetry-Breaking Synthesis of Au-Ag Hierarchical Nanostructures and Their Efficient Photothermal Conversion".SMALL (2022).

入库方式： OAI收割

来源：合肥物质科学研究院

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