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. 2022 Aug 30;58(70):9810-9813.
doi: 10.1039/d2cc01859d.

Heterostructures of Cu2- xS/Cu2- xTe plasmonic semiconductors: disappearing and reappearing LSPR with anion exchange

Alba Roselia Espinosa  1 , Marc Novak  1 , Qi Luo  1 , Brandon Hole  1 , Clarisse Doligon  1 , Kenya Prenza Sosa  1 , Jennifer L Gray  2 , Daniel P Rossi  3 , Katherine E Plass  1
Affiliations

Heterostructures of Cu2- xS/Cu2- xTe plasmonic semiconductors: disappearing and reappearing LSPR with anion exchange

Alba Roselia Espinosa et al. Chem Commun (Camb). .

Abstract

Localized surface plasmon resonance (LSPR) of Cu2-xS nanorods is quenched during the initial Cu2-xS/Cu2-xTe core/shell stage of anion exchange then returns as Cu2-xTe progresses into the nanorod. Phase change within the core accounts for this behaviour illustrating the complexity emergent from anion exchange.

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