Tunable Mechanical Response of Self-Assembled Nanoparticle Superlattices
Self-assembled nanoparticle superlattices (NPSLs) are an emergent class of self-architected nanocomposite materials that possess promising properties arising from precise nanoparticle ordering. Their multiple coupled properties make them desirable as functional components in devices where mechanical...
| Main Authors: | , , , , , , |
|---|---|
| Other Authors: | |
| Format: | Article |
| Language: | English |
| Published: |
American Chemical Society
2024
|
| Online Access: | https://hdl.handle.net/1721.1/155840 |
| _version_ | 1826203840991461376 |
|---|---|
| author | Dhulipala, Somayajulu Yee, Daryl W. Zhou, Ziran Sun, Rachel Andrade, José E. Macfarlane, Robert J. Portela, Carlos M. |
| author2 | Massachusetts Institute of Technology. Department of Mechanical Engineering |
| author_facet | Massachusetts Institute of Technology. Department of Mechanical Engineering Dhulipala, Somayajulu Yee, Daryl W. Zhou, Ziran Sun, Rachel Andrade, José E. Macfarlane, Robert J. Portela, Carlos M. |
| author_sort | Dhulipala, Somayajulu |
| collection | MIT |
| description | Self-assembled nanoparticle superlattices (NPSLs) are an emergent class of self-architected nanocomposite materials that possess promising properties arising from precise nanoparticle ordering. Their multiple coupled properties make them desirable as functional components in devices where mechanical robustness is critical. However, questions remain about NPSL mechanical properties and how shaping them affects their mechanical response. Here, we perform in situ nanomechanical experiments that evidence up to an 11-fold increase in stiffness (∼1.49 to 16.9 GPa) and a 5-fold increase in strength (∼88 to 426 MPa) because of surface stiffening/strengthening from shaping these nanomaterials via focused-ion-beam milling. To predict the mechanical properties of shaped NPSLs, we present discrete element method (DEM) simulations and an analytical core-shell model that capture the FIB-induced stiffening response. This work presents a route for tunable mechanical responses of self-architected NPSLs and provides two frameworks to predict their mechanical response and guide the design of future NPSL-containing devices. |
| first_indexed | 2024-09-23T12:44:04Z |
| format | Article |
| id | mit-1721.1/155840 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2025-02-19T04:21:52Z |
| publishDate | 2024 |
| publisher | American Chemical Society |
| record_format | dspace |
| spelling | mit-1721.1/1558402025-01-04T05:08:32Z Tunable Mechanical Response of Self-Assembled Nanoparticle Superlattices Dhulipala, Somayajulu Yee, Daryl W. Zhou, Ziran Sun, Rachel Andrade, José E. Macfarlane, Robert J. Portela, Carlos M. Massachusetts Institute of Technology. Department of Mechanical Engineering Massachusetts Institute of Technology. Department of Materials Science and Engineering Self-assembled nanoparticle superlattices (NPSLs) are an emergent class of self-architected nanocomposite materials that possess promising properties arising from precise nanoparticle ordering. Their multiple coupled properties make them desirable as functional components in devices where mechanical robustness is critical. However, questions remain about NPSL mechanical properties and how shaping them affects their mechanical response. Here, we perform in situ nanomechanical experiments that evidence up to an 11-fold increase in stiffness (∼1.49 to 16.9 GPa) and a 5-fold increase in strength (∼88 to 426 MPa) because of surface stiffening/strengthening from shaping these nanomaterials via focused-ion-beam milling. To predict the mechanical properties of shaped NPSLs, we present discrete element method (DEM) simulations and an analytical core-shell model that capture the FIB-induced stiffening response. This work presents a route for tunable mechanical responses of self-architected NPSLs and provides two frameworks to predict their mechanical response and guide the design of future NPSL-containing devices. 2024-08-01T14:40:59Z 2024-08-01T14:40:59Z 2023-05-22 2024-08-01T14:33:06Z Article http://purl.org/eprint/type/JournalArticle 1530-6984 1530-6992 https://hdl.handle.net/1721.1/155840 Dhulipala, Somayajulu, Yee, Daryl W., Zhou, Ziran, Sun, Rachel, Andrade, José E. et al. 2023. "Tunable Mechanical Response of Self-Assembled Nanoparticle Superlattices." Nano Letters, 23 (11). en 10.1021/acs.nanolett.3c01058 Nano Letters Creative Commons Attribution-Noncommercial-ShareAlike http://creativecommons.org/licenses/by-nc-sa/4.0/ application/pdf American Chemical Society Author |
| spellingShingle | Dhulipala, Somayajulu Yee, Daryl W. Zhou, Ziran Sun, Rachel Andrade, José E. Macfarlane, Robert J. Portela, Carlos M. Tunable Mechanical Response of Self-Assembled Nanoparticle Superlattices |
| title | Tunable Mechanical Response of Self-Assembled Nanoparticle Superlattices |
| title_full | Tunable Mechanical Response of Self-Assembled Nanoparticle Superlattices |
| title_fullStr | Tunable Mechanical Response of Self-Assembled Nanoparticle Superlattices |
| title_full_unstemmed | Tunable Mechanical Response of Self-Assembled Nanoparticle Superlattices |
| title_short | Tunable Mechanical Response of Self-Assembled Nanoparticle Superlattices |
| title_sort | tunable mechanical response of self assembled nanoparticle superlattices |
| url | https://hdl.handle.net/1721.1/155840 |
| work_keys_str_mv | AT dhulipalasomayajulu tunablemechanicalresponseofselfassemblednanoparticlesuperlattices AT yeedarylw tunablemechanicalresponseofselfassemblednanoparticlesuperlattices AT zhouziran tunablemechanicalresponseofselfassemblednanoparticlesuperlattices AT sunrachel tunablemechanicalresponseofselfassemblednanoparticlesuperlattices AT andradejosee tunablemechanicalresponseofselfassemblednanoparticlesuperlattices AT macfarlanerobertj tunablemechanicalresponseofselfassemblednanoparticlesuperlattices AT portelacarlosm tunablemechanicalresponseofselfassemblednanoparticlesuperlattices |