《Binary Superlattices of Infrared Plasmonic and Excitonic Nanocrystals》 was published in ACS Applied Materials & Interfaces in 2020. These research results belong to Brittman, Sarah; Mahadik, Nadeemullah A.; Qadri, Syed B.; Yee, Patrick Y.; Tischler, Joseph G.; Boercker, Janice E.. Name: Bis(acetylacetone)copper The article mentions the following:
Self-assembled superlattices of nanocrystals offer exceptional control over the coupling between nanocrystals, similar to how solid-state crystals tailor the bonding between atoms. By assembling nanocrystals of different properties (e.g., plasmonic, excitonic, dielec., or magnetic), we can form a wealth of binary superlattice metamaterials with new functionalities. Here, we introduce IR plasmonic Cu2-xS nanocrystals to the limited library of materials that have been successfully incorporated into binary superlattices. We are the first to create a variety of binary superlattices with large excitonic (PbS) nanocrystals and small plasmonic (Cu2-xS) nanocrystals, both resonant in the IR. Then, by controlling the surface chem. of large Cu2-xS nanocrystals, we produced structurally analogous superlattices of large Cu2-xS and small PbS nanocrystals. Transmission electron microscopy (TEM) and grazing-incidence small-angle X-ray scattering (GISAXS) were used to characterize both types of superlattices. Furthermore, our unique surface modification of the large Cu2-xS nanocrystals also prevented them from chem. quenching the photoluminescence of the PbS nanocrystals, which occurred when the PbS nanocrystals were mixed with unmodified Cu2-xS nanocrystals. These synthetic achievements create a set of binary superlattices that can be used to understand how IR plasmonic and excitonic nanocrystals couple in a variety of symmetries and stoichiometries. In the experiment, the researchers used Bis(acetylacetone)copper(cas: 13395-16-9Name: Bis(acetylacetone)copper)
Bis(acetylacetone)copper(cas: 13395-16-9) catalyzes coupling and carbene transfer reactions. Metal acetylacetonates are used as catalysts for polymerization of olefins and transesterification. Name: Bis(acetylacetone)copper
Referemce:
Copper catalysis in organic synthesis – NCBI,
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”