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| Content Provider | Royal Society of Chemistry (RSC) |
|---|---|
| Author | Tsige, Mesfin Jha, Kshitij C. Yimer, Yeneneh Y. |
| Copyright Year | 2014 |
| Abstract | Short spacer length and high end-group coordination lead to the top network acting as a template for the buried sulfur–gold interface of n-alkanethiols (SH–(CH2)n–OH or SH–(CH2)n–CH3) on gold {111}. Annealing and templating both drive toward a higher sampling of the spatially favorable bridge adsorption sites. The hydrogen-bonded network increases in strength by increasing the number of hydrogens participating per oxygen, from 1.75 to 1.98 for n = 14–30. Higher n leads to better packing (five times for hydroxyl-terminated and seven times for methyl-terminated for n = 14–30) and stability of monolayers, while lower n results in better epitaxial transfer (transfer coefficient ratio = 13.5 for {SH–(CH2)14–OH}/{SH–(CH2)30–CH3}) and actuation. Odd values of n for the hydroxyl-terminated n-alkanethiols lead to lattice spacing of an average of 0.04 ± 0.01 Å higher than even values. There is a structural transition in properties around spacer length n = 24–27. Characterization of monolayer assembly through correlation between adatom and network layers provides recursive design principles for actuation and sensing applications. |
| Starting Page | 3496 |
| Ending Page | 3502 |
| Page Count | 7 |
| File Format | HTM / HTML PDF |
| ISSN | 20403364 |
| Volume Number | 6 |
| Issue Number | 7 |
| Journal | Nanoscale |
| DOI | 10.1039/c3nr05671f |
| Language | English |
| Publisher | Royal Society of Chemistry |
| Access Restriction | Open |
| Subject Keyword | End-group Oxygen Adsorption Heat transfer coefficient Adatom Nucleic acid thermodynamics Crystal structure |
| Content Type | Text |
| Resource Type | Article |
| Subject | Nanoscience and Nanotechnology |
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