Interface and heterostructure design in polyelemental nanoparticles
Abstract
Thermodynamically stable metal nanoparticles composed of multiple elements could, in principle, exhibit several different phases that form multiple interfaces. Chen et al. explored the structure and composition of palladium-tin alloy nanoparticles formed with up to five other elements after high-temperature annealing. Triphase nanoparticles possessed two or three interface architectures, and tetraphase nanoparticles exhibited up to six interfaces. Theoretical and experimental studies revealed how the balance between surface and interfacial energies influences the observed phases and interface structure.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Mar 01, 2019
- Source ID
- 10.1126/science.aav4302
Entities
People
- Brian Meckes
- Chad Mirkin
- Chris Wolverton
- Haixin Lin
- Jingshan Du
- Mohan Liu
- Peng-Cheng Chen
- Shunzhi Wang
- Vinayak P. Dravid
Organizations
- Air Force Office of Scientific Research
- National Science Foundation
- Northwestern University
- Office of Naval Research
- Sherman Fairchild Foundation