Exploring the Challenges of Characterising Surface Topography of Polymer–Nanoparticle Composites
Abstract
:1. Introduction
2. Methods and Materials
2.1. Sample Preparation
2.2. Morphology of AuNPs Using TEM and SEM
2.3. AFM Instrument
2.4. AFM Topography
2.5. Force Spectroscopy
2.6. Lateral Force Microscopy
2.7. Statistical Analysis
3. Results and Discussion
3.1. AuNP Morphological Characteristics
3.2. Base Substrate Roughness
3.3. Base Film Deformation vs. Thickness
3.4. Substrate Characterisation
3.5. Set Point vs. Friction
3.6. AuNP Geometry
3.7. AuNP Size Consistency
3.8. AuNP Resolution
3.9. AuNP Attachment vs. Surface Topography
3.10. AuNP Wobbling
3.11. AuNP Movement
3.12. AuNP–Substrate Indentation
3.13. AuNP Movement During Scanning
3.14. Point of Movement
3.15. Static and Kinetic Friction
4. Conclusions
Author Contributions
Funding
Data Availability Statement
Acknowledgments
Conflicts of Interest
References
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Scan Mode | Scan Parameters | Ra (nm) | RMS (nm) |
---|---|---|---|
AM Mode | Drive Amplitude 3.1 nm | 0.33 ± 0.10 | 0.70 ± 0.16 |
AM Mode | Drive Amplitude 10.8 nm | 0.29 ± 0.08 | 0.69 ± 0.19 |
Contact Mode | Set Point 20 nN | 0.16 ± 0.07 | 0.33 ± 0.01 |
Contact Mode | Set Point 50 nN | 0.14 ± 0.05 | 0.18 ± 0.0 |
Set Point Force | 10 nm Film | 15 nm Film | 20 nm Film | |
---|---|---|---|---|
1 nN | Elastic modulus (MPa) | 91.7 ± 5.6 | 88.7 ± 16.0 | 23 ± 8.3 |
Adhesion (nN) | 19.3 ± 9.8 | 21.3 ± 12.5 | 118.8 ± 28.5 | |
100 nN | Elastic modulus (MPa) | 84.8 ± 19.5 | 79.8 ± 12.4 | 36 ± 6.6 |
Adhesion (nN) | 19 ± 3.9 | 22.4 ± 7.4 | 71.5 ± 26.6 |
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Wood, J.; Palms, D.; Dabare, R.; Vasilev, K.; Bright, R. Exploring the Challenges of Characterising Surface Topography of Polymer–Nanoparticle Composites. Nanomaterials 2024, 14, 1275. https://doi.org/10.3390/nano14151275
Wood J, Palms D, Dabare R, Vasilev K, Bright R. Exploring the Challenges of Characterising Surface Topography of Polymer–Nanoparticle Composites. Nanomaterials. 2024; 14(15):1275. https://doi.org/10.3390/nano14151275
Chicago/Turabian StyleWood, Jonathan, Dennis Palms, Ruvini Dabare, Krasimir Vasilev, and Richard Bright. 2024. "Exploring the Challenges of Characterising Surface Topography of Polymer–Nanoparticle Composites" Nanomaterials 14, no. 15: 1275. https://doi.org/10.3390/nano14151275