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Aluminum Nanocubes Have Sharp Corners.
Clark, Benjamin D; Jacobson, Christian R; Lou, Minhan; Renard, David; Wu, Gang; Bursi, Luca; Ali, Arzeena S; Swearer, Dayne F; Tsai, Ah-Lim; Nordlander, Peter; Halas, Naomi J.
Afiliação
  • Wu G; Division of Hematology, Department of Internal Medicine , The University of Texas McGovern Medical School , 6431 Fannin St , Houston , Texas 77030 , United States.
  • Tsai AL; Division of Hematology, Department of Internal Medicine , The University of Texas McGovern Medical School , 6431 Fannin St , Houston , Texas 77030 , United States.
ACS Nano ; 13(8): 9682-9691, 2019 Aug 27.
Article em En | MEDLINE | ID: mdl-31397561
Of the many plasmonic nanoparticle geometries that have been synthesized, nanocubes have been of particular interest for creating nanocavities, facilitating plasmon coupling, and enhancing phenomena dependent upon local electromagnetic fields. Here we report the straightforward colloidal synthesis of single-crystalline {100} terminated Al nanocubes by decomposing AlH3 with Tebbe's reagent in tetrahydrofuran. The size and shape of the Al nanocubes is controlled by the reaction time and the ratio of AlH3 to Tebbe's reagent, which, together with reaction temperature, establish kinetic control over Al nanocube growth. Al nanocubes possess strong localized field enhancements at their sharp corners and resonances highly amenable to coupling with metallic substrates. Their native oxide surface renders them extremely air stable. Chemically synthesized Al nanocubes provide an earth-abundant alternative to noble metal nanocubes for plasmonics and nanophotonics applications.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: ACS Nano Ano de publicação: 2019 Tipo de documento: Article

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: ACS Nano Ano de publicação: 2019 Tipo de documento: Article