Au Polyhedron Array with Tunable Crystal Facets by PVP-Assisted Thermodynamic Control and Its Sharp Shape As Well As High-Energy Exposed Planes Co-Boosted SERS Activity
文献类型：期刊论文
| 作者 | Li, Xuejiao1,2,3; Zhang, Tao1,2 ; Chen, Zhiming1,2,3; Yu, Jie1,2; Cao, An1,2,3; Liu, Dilong1,2; Cai, Weiping1,2; Li, Yue1,2
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| 刊名 | SMALL
 |
| 出版日期 | 2021-11-28 |
| 关键词 | arrays facets polyhedrons polyvinyl pyrrolidone seed-mediated growth |
| ISSN号 | 1613-6810 |
| DOI | 10.1002/smll.202105045 |
| 通讯作者 | Li, Yue(yueli@issp.ac.cn) |
| 英文摘要 | A route is developed for directly growing 2D Au polyhedron arrays with controllable exposed facets of polyhedron by utilizing the substrate-supported 2D Au quasi-spherical nanoparticle arrays as the Au seed arrays, which cannot be realized by traditional lithography. In the reaction system, polyvinyl pyrrolidone (PVP) plays a vital role in guiding the reduced Au atoms and stabilizing the substrate-supported Au seeds. More importantly, by thermodynamic control, PVP as a capping agent can further direct the formation of {111} facets. The key to guarantee the integrity and periodicity of array is a proper reduction of Au ions and low growth rate of crystal. Benefiting from the higher electric field intensity near the sharp vertexes and edges of Au polyhedra and the exposed {110} facets with high energy, the Au polyhedron array with {110} facets encasing polyhedron exhibits good, stable surface enhanced Raman scattering activity toward 4-aminothiophenol among the involved arrays. The proposed fabrication approach tremendously enriches the structural diversity of Au nanoarrays on substrates and greatly overcomes the shortcoming of traditional lithography. |
| WOS关键词 | STEP SEEDED GROWTH ; HIGH-INDEX FACETS ; GOLD NANOPARTICLES ; NANOCRYSTALS ; PERFORMANCE ; DEPOSITION ; NANORODS ; STRAIN ; FIELD ; NM |
| 资助项目 | National Science Fund for Distinguished Young Scholars[51825103] ; Natural Science Foundation of China[51771188] ; Natural Science Foundation of China[52001306] ; National Key Research and the Development Program of China[2017YFA0207101] |
| WOS研究方向 | Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000723121200001 |
| 出版者 | WILEY-V C H VERLAG GMBH |
| 资助机构 | National Science Fund for Distinguished Young Scholars ; Natural Science Foundation of China ; National Key Research and the Development Program of China |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/126752]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Li, Yue |
| 作者单位 | 1.Chinese Acad Sci, Key Lab Mat Phys, Inst Solid State Phys, HFIPS, Hefei 230031, Peoples R China 2.Chinese Acad Sci, Anhui Key Lab Nanomat & Nanotechnol, Inst Solid State Phys, HFIPS, Hefei 230031, Peoples R China 3.Chinese Acad Sci, Key Lab Mat Phys & Anhui, Key Lab Nanomat & Nanotechnol, Inst Solid State Phys,HFIPS, Hefei 230031, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Xuejiao,Zhang, Tao,Chen, Zhiming,et al. Au Polyhedron Array with Tunable Crystal Facets by PVP-Assisted Thermodynamic Control and Its Sharp Shape As Well As High-Energy Exposed Planes Co-Boosted SERS Activity[J]. SMALL,2021. |
| APA | Li, Xuejiao.,Zhang, Tao.,Chen, Zhiming.,Yu, Jie.,Cao, An.,...&Li, Yue.(2021).Au Polyhedron Array with Tunable Crystal Facets by PVP-Assisted Thermodynamic Control and Its Sharp Shape As Well As High-Energy Exposed Planes Co-Boosted SERS Activity.SMALL. |
| MLA | Li, Xuejiao,et al."Au Polyhedron Array with Tunable Crystal Facets by PVP-Assisted Thermodynamic Control and Its Sharp Shape As Well As High-Energy Exposed Planes Co-Boosted SERS Activity".SMALL (2021). |
入库方式： OAI收割
来源：合肥物质科学研究院
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