Atomic‐Level Strain Sensing and Piezoresistance Effect in a 1D Single‐Atom Chain
Abstract Small variations in interatomic distances have a substantial impact on the physical and chemical properties of nanomaterials. Investigating these effects offers a deeper understanding of the mechanisms governing the behavior of nanomaterials and nanostructures, providing foundations for the...
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| Format: | Article |
| Language: | English |
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Wiley
2025-06-01
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| Series: | Advanced Science |
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| Online Access: | https://doi.org/10.1002/advs.202500553 |
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| author | Zhi Qu Wenqi Zhang Shuideng Wang Donglei Chen Yiqing Yao Mingxing Cheng Lixin Dong |
| author_facet | Zhi Qu Wenqi Zhang Shuideng Wang Donglei Chen Yiqing Yao Mingxing Cheng Lixin Dong |
| author_sort | Zhi Qu |
| collection | DOAJ |
| description | Abstract Small variations in interatomic distances have a substantial impact on the physical and chemical properties of nanomaterials. Investigating these effects offers a deeper understanding of the mechanisms governing the behavior of nanomaterials and nanostructures, providing foundations for the design and optimization of novel functional materials. However, the impact of strain in single‐atom structures on piezoresistance and electronic transport properties remains unclear. This study focuses on a 1D, dynamic functional nanostructure that uses interatomic distance variations for lattice‐level strain sensing. This silver (Ag) atom chain shows a high stability at room‐temperature and an exceptional piezoresistance coefficient, enabling the detection of structural changes at atomic radius scale with high sampling frequencies. It is considered that this strong piezoresistivity is due to the impact of interatomic distance on electron scattering and transport mechanisms. The density functional theory simulations of electron transport reveal that variations in interatomic distance significantly influence the relaxation time of electron scattering and the effective electron mass, thereby modulating the characteristics of electron transport. This 1D dynamic nanostructure has the potential to address the low time resolution limitations of transmission electron microscopy (TEM), enhancing its capabilities for in situ characterization and multi‐physical‐field sensing. This study provides experimental evidence for insights into atomic scale piezoresistivity and underlying mechanisms. |
| format | Article |
| id | doaj-art-25e4efc405f04c93b18db7a1fc58e314 |
| institution | OA Journals |
| issn | 2198-3844 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advanced Science |
| spelling | doaj-art-25e4efc405f04c93b18db7a1fc58e3142025-08-20T02:36:40ZengWileyAdvanced Science2198-38442025-06-011223n/an/a10.1002/advs.202500553Atomic‐Level Strain Sensing and Piezoresistance Effect in a 1D Single‐Atom ChainZhi Qu0Wenqi Zhang1Shuideng Wang2Donglei Chen3Yiqing Yao4Mingxing Cheng5Lixin Dong6Department of Biomedical Engineering City University of Hong Kong Hong Kong 999077 P. R. ChinaDepartment of Biomedical Engineering City University of Hong Kong Hong Kong 999077 P. R. ChinaDepartment of Biomedical Engineering City University of Hong Kong Hong Kong 999077 P. R. ChinaDepartment of Biomedical Engineering City University of Hong Kong Hong Kong 999077 P. R. ChinaDepartment of Biomedical Engineering City University of Hong Kong Hong Kong 999077 P. R. ChinaDepartment of Biomedical Engineering City University of Hong Kong Hong Kong 999077 P. R. ChinaDepartment of Biomedical Engineering City University of Hong Kong Hong Kong 999077 P. R. ChinaAbstract Small variations in interatomic distances have a substantial impact on the physical and chemical properties of nanomaterials. Investigating these effects offers a deeper understanding of the mechanisms governing the behavior of nanomaterials and nanostructures, providing foundations for the design and optimization of novel functional materials. However, the impact of strain in single‐atom structures on piezoresistance and electronic transport properties remains unclear. This study focuses on a 1D, dynamic functional nanostructure that uses interatomic distance variations for lattice‐level strain sensing. This silver (Ag) atom chain shows a high stability at room‐temperature and an exceptional piezoresistance coefficient, enabling the detection of structural changes at atomic radius scale with high sampling frequencies. It is considered that this strong piezoresistivity is due to the impact of interatomic distance on electron scattering and transport mechanisms. The density functional theory simulations of electron transport reveal that variations in interatomic distance significantly influence the relaxation time of electron scattering and the effective electron mass, thereby modulating the characteristics of electron transport. This 1D dynamic nanostructure has the potential to address the low time resolution limitations of transmission electron microscopy (TEM), enhancing its capabilities for in situ characterization and multi‐physical‐field sensing. This study provides experimental evidence for insights into atomic scale piezoresistivity and underlying mechanisms.https://doi.org/10.1002/advs.202500553dynamic nanostructurenano piezoresistance effectnano strain sensingsingle‐atom chain |
| spellingShingle | Zhi Qu Wenqi Zhang Shuideng Wang Donglei Chen Yiqing Yao Mingxing Cheng Lixin Dong Atomic‐Level Strain Sensing and Piezoresistance Effect in a 1D Single‐Atom Chain Advanced Science dynamic nanostructure nano piezoresistance effect nano strain sensing single‐atom chain |
| title | Atomic‐Level Strain Sensing and Piezoresistance Effect in a 1D Single‐Atom Chain |
| title_full | Atomic‐Level Strain Sensing and Piezoresistance Effect in a 1D Single‐Atom Chain |
| title_fullStr | Atomic‐Level Strain Sensing and Piezoresistance Effect in a 1D Single‐Atom Chain |
| title_full_unstemmed | Atomic‐Level Strain Sensing and Piezoresistance Effect in a 1D Single‐Atom Chain |
| title_short | Atomic‐Level Strain Sensing and Piezoresistance Effect in a 1D Single‐Atom Chain |
| title_sort | atomic level strain sensing and piezoresistance effect in a 1d single atom chain |
| topic | dynamic nanostructure nano piezoresistance effect nano strain sensing single‐atom chain |
| url | https://doi.org/10.1002/advs.202500553 |
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