Synthesis of Au doped Ag nanoclusters and the doping effect of Au atoms on their physical and optical properties
Bimetallic noble metal nanoclusters (NCs) are an emerging topic of metal clusters due to their distinguishing characteristics compared to monometallic clusters. Doping of different noble atoms in other clusters is an effective strategy for tailoring their functionalities for specific applications an...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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IOP Publishing
2019-01-01
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| Series: | Materials Research Express |
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| Online Access: | https://doi.org/10.1088/2053-1591/ab5bde |
| _version_ | 1797747195502395392 |
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| author | Syed Adil Shah Kuo-Juei Hu Muhammad Naveed Syed Niaz Ali Shah Shengyong Hu Siqi Lu Fengqi Song |
| author_facet | Syed Adil Shah Kuo-Juei Hu Muhammad Naveed Syed Niaz Ali Shah Shengyong Hu Siqi Lu Fengqi Song |
| author_sort | Syed Adil Shah |
| collection | DOAJ |
| description | Bimetallic noble metal nanoclusters (NCs) are an emerging topic of metal clusters due to their distinguishing characteristics compared to monometallic clusters. Doping of different noble atoms in other clusters is an effective strategy for tailoring their functionalities for specific applications and synergistic effects. Obtaining single-heteroatom doping is desirable but still very challenging to date. Herein, 2,4-dimethylbenzenthiol (2,4-DMBT) protected Ag/Au alloy NCs (ca. 2-3 nm) were synthesized via a wet chemical one-pot process. The effect of the number of Au atoms in Ag NCs on their optical properties and bandgap was investigated. We found that the change of the absorption peak positions of the Ag NCs was influenced by the presence of Au atoms. Besides, we found that the HOMO-LUMO peak has appeared without a significant change in cluster size during synthesis. Ag/Au alloy NCs are characterized by UV–visible spectroscopy, transmission electron microscopy (TEM) and scanning electron transmission microscopy (STEM). |
| first_indexed | 2024-03-12T15:47:32Z |
| format | Article |
| id | doaj.art-face92154efa4b518d9b81b314e2b29b |
| institution | Directory Open Access Journal |
| issn | 2053-1591 |
| language | English |
| last_indexed | 2024-03-12T15:47:32Z |
| publishDate | 2019-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | Materials Research Express |
| spelling | doaj.art-face92154efa4b518d9b81b314e2b29b2023-08-09T15:22:49ZengIOP PublishingMaterials Research Express2053-15912019-01-017101650610.1088/2053-1591/ab5bdeSynthesis of Au doped Ag nanoclusters and the doping effect of Au atoms on their physical and optical propertiesSyed Adil Shah0https://orcid.org/0000-0002-0668-1949Kuo-Juei Hu1Muhammad Naveed2https://orcid.org/0000-0001-7100-5632Syed Niaz Ali Shah3https://orcid.org/0000-0001-9902-857XShengyong Hu4Siqi Lu5Fengqi Song6https://orcid.org/0000-0002-2354-0806National Laboratory of Solid-State Microstructures, Department of Physics, Nanjing University , Nanjing 210093, People’s Republic of ChinaNational Laboratory of Solid-State Microstructures, Department of Physics, Nanjing University , Nanjing 210093, People’s Republic of ChinaNational Laboratory of Solid-State Microstructures, Department of Physics, Nanjing University , Nanjing 210093, People’s Republic of ChinaBeijing Key Laboratory of Microanalytical Methods and Instrumentation, Department of Chemistry, Tsinghua University , Beijing 100084, People’s Republic of ChinaNational Laboratory of Solid-State Microstructures, Department of Physics, Nanjing University , Nanjing 210093, People’s Republic of ChinaNational Laboratory of Solid-State Microstructures, Department of Physics, Nanjing University , Nanjing 210093, People’s Republic of ChinaNational Laboratory of Solid-State Microstructures, Department of Physics, Nanjing University , Nanjing 210093, People’s Republic of ChinaBimetallic noble metal nanoclusters (NCs) are an emerging topic of metal clusters due to their distinguishing characteristics compared to monometallic clusters. Doping of different noble atoms in other clusters is an effective strategy for tailoring their functionalities for specific applications and synergistic effects. Obtaining single-heteroatom doping is desirable but still very challenging to date. Herein, 2,4-dimethylbenzenthiol (2,4-DMBT) protected Ag/Au alloy NCs (ca. 2-3 nm) were synthesized via a wet chemical one-pot process. The effect of the number of Au atoms in Ag NCs on their optical properties and bandgap was investigated. We found that the change of the absorption peak positions of the Ag NCs was influenced by the presence of Au atoms. Besides, we found that the HOMO-LUMO peak has appeared without a significant change in cluster size during synthesis. Ag/Au alloy NCs are characterized by UV–visible spectroscopy, transmission electron microscopy (TEM) and scanning electron transmission microscopy (STEM).https://doi.org/10.1088/2053-1591/ab5bdesynthesisAg/Au alloy nanoclusterphysical and optical properties |
| spellingShingle | Syed Adil Shah Kuo-Juei Hu Muhammad Naveed Syed Niaz Ali Shah Shengyong Hu Siqi Lu Fengqi Song Synthesis of Au doped Ag nanoclusters and the doping effect of Au atoms on their physical and optical properties Materials Research Express synthesis Ag/Au alloy nanocluster physical and optical properties |
| title | Synthesis of Au doped Ag nanoclusters and the doping effect of Au atoms on their physical and optical properties |
| title_full | Synthesis of Au doped Ag nanoclusters and the doping effect of Au atoms on their physical and optical properties |
| title_fullStr | Synthesis of Au doped Ag nanoclusters and the doping effect of Au atoms on their physical and optical properties |
| title_full_unstemmed | Synthesis of Au doped Ag nanoclusters and the doping effect of Au atoms on their physical and optical properties |
| title_short | Synthesis of Au doped Ag nanoclusters and the doping effect of Au atoms on their physical and optical properties |
| title_sort | synthesis of au doped ag nanoclusters and the doping effect of au atoms on their physical and optical properties |
| topic | synthesis Ag/Au alloy nanocluster physical and optical properties |
| url | https://doi.org/10.1088/2053-1591/ab5bde |
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