Defect tolerance and the effect of structural inhomogeneity in plasmonic DNA-nanoparticle superlattices
Abstract
Materials constructed with metal nanoparticles interact strongly with light, enabling functions such as tunable color, molecular sensors, and light-based electronics. These materials, however, are often imperfect; nanoparticles vary in their size, shape, and surface morphology, which can affect the quality of their arrangement as well as their properties. We use DNA to synthesize precisely controlled crystalline arrangements of gold nanoparticles and survey how a variety of structural inhomogeneities affects their optical properties. The results reported herein identify specific metal nanoparticle-based materials whose optical properties are either sensitive or insensitive to inhomogeneity.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Aug 03, 2015
- Source ID
- 10.1073/pnas.1513058112
Entities
People
- Chad Mirkin
- George C. Schatz
- Jessie C. Ku
- Martin G. Blaber
- Michael B Ross
Organizations
- Air Force Office of Scientific Research
- Argonne National Laboratory
- Division of Materials Research
- Northwestern University