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

Alba Roselia Espinosa; Marc Novak; Qi Luo; Brandon Hole; Clarisse Doligon; Kenya Prenza Sosa; Jennifer L Gray; Daniel P Rossi; Katherine E Plass

doi:10.1039/d2cc01859d

Heterostructures of Cu_{2- x}S/Cu_{2- x}Te plasmonic semiconductors: disappearing and reappearing LSPR with anion exchange

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

Authors

Alba Roselia Espinosa¹, Marc Novak¹, Qi Luo¹, Brandon Hole¹, Clarisse Doligon¹, Kenya Prenza Sosa¹, Jennifer L Gray², Daniel P Rossi³, Katherine E Plass¹

Affiliations

¹ Department of Chemistry, Franklin & Marshall College, Lancaster, Pennsylvania 17604, USA. [email protected].
² Materials Research Institute, The Pennsylvania State University, University Park, Pennsylvania 16802, USA.
³ Department of Chemistry, University of Michigan, Ann Arbor, Michigan 48109, USA.

PMID: 35971959
DOI: 10.1039/d2cc01859d

Abstract

Localized surface plasmon resonance (LSPR) of Cu_2-xS nanorods is quenched during the initial Cu_2-xS/Cu_2-xTe core/shell stage of anion exchange then returns as Cu_2-xTe progresses into the nanorod. Phase change within the core accounts for this behaviour illustrating the complexity emergent from anion exchange.