Plasmonic photonic crystals realized through DNA-programmable assembly
Abstract
DNA-programmable methods provide unprecedented control over the assembly of nanoparticles into complex structures, including superlattices with deliberately tailorable compositions, crystal symmetries, lattice constants, and crystal habits. In principle, such bottom-up approaches can be used to assemble interesting photonic structures, including ones containing quantum dots and metal nanoparticles. Herein we show that we can tune the interaction between light and the collective electronic modes of gold nanoparticles by independently adjusting lattice constants and gold nanoparticle diameters. This opens up exciting possibilities for tuning the interaction between light and highly organized collections of particles at the nanoscale for applications ranging from lasers to quantum electrodynamics to biosensing. The structures reported herein are the first devices to our knowledge prepared by DNA guided colloidal crystallization.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Dec 29, 2014
- Source ID
- 10.1073/pnas.1422649112
Entities
People
- Chad Mirkin
- Chuan Zhang
- Daniel J. Park
- George C. Schatz
- Jessie C. Ku
- Yu Zhou
Organizations
- Air Force Office of Scientific Research
- Argonne National Laboratory
- National Science Foundation
- Northwestern University
- Office of Naval Research
- United States Department of Energy