Tunable Plasmonic Coupling in Self-Assembled Binary Nanocrystal Super lattices Studied by Correlated Optical Microspectrophotometry and Electron Microscopy

Journal Article · Fri Mar 01 00:00:00 EST 2013 · Nano Letters

DOI:https://doi.org/10.1021/nl400052w· OSTI ID:1211198

Ye, XC; Chen, J; Diroll, BT; Murray, CB

We study the plasmonic properties of self-assembled binary nanocrystal superlattices (BNSLs) using correlated optical microspectrophotometry and electron microscopy performed on individual BNSL domains. The strength of near-field couplings between adjacent plasmonic nanocrystals (NCs) can be systematically engineered by varying the NC size, composition, and the lattice symmetry of BNSLs, leading to broadband spectral tunability of the collective plasmonic response of BNSLs across the entire visible spectrum. Self-assembled multicomponent NC superlattices represent a versatile platform for the rational design of macroscopic three-dimensional plasmonic metamaterials with emergent optical characteristics.

• Sponsoring Organization: USDOE Advanced Research Projects Agency - Energy (ARPA-E)
• DOE Contract Number: DE-AR0000123
• OSTI ID: 1211198
• Journal Information: Nano Letters, Vol. 13, Issue 3; ISSN 1530-6984
• Country of Publication: United States
• Language: English