Robust Nanoparticles
Abstract
This project advanced the chemistry of functional nanoparticles and used these particles in advanced materials assembly for the fabrication of nanoparticle-based mesostructures. These hybrid materials possess extremely high inorganic weight fraction, yet benefit from the processibility offered by organic/polymer ligands, and the robustness resulting from ligand cross-linking post-assembly. The project developed a facile evaporative assembly method, termed flow coating, that affords nanoparticle-based ribbons that were studied for their fundamental features including 1) the scope-and-limitations of their dimensions, 2) their conductivity when employing metallic nanoparticles in the assembly, and 3) their propensity to twist into helical structures irrespective of the nanoparticle (or polymer) composition used in the assembly. The ribbons identified in this project exhibited force-extension behavior described by a combination of elastic and surface energies. The macroscale mechanical properties of these ribbons, along with the inherent nanoscale properties of the particles, provide tunable multi-functionality and open numerous opportunities for applications in sensing, self-healing, and mechanical reinforcement applications.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 21, 2015
- Accession Number
- ADA621358
Entities
People
- Al Crosby
- Todd Emrick
Organizations
- University of Massachusetts Amherst