Irreversible electrostatic deposition of CdTe quantum dots on glassy carbon electrodes from colloidal solutions

Emilio Navarrete, Víctor Rojas, Mario Romero, J. Román, G. Cáceres, Rodrigo Henríquez, Paula Grez, Ricardo Schrebler, Francisco Herrera, Eduardo C. Muñoz

Resultado de la investigación: Contribución a una revistaArtículorevisión exhaustiva

2 Citas (Scopus)

Resumen

Cadmium telluride quantum dots (CdTe-QDs) can be deposited from colloidal solutions on glassy carbon (GC) electrodes potentiostatically. The immobilization of QDs can be performed at potentials positive and negative from the potential of zero charge (PZC = 0.45 V vs. Ag/AgCl), including the open circuit potential. The surface coverage of QDs depends on the deposition potential and time. The amount of QD layers was determined by following the redox process of cadmium by cyclic voltammetry and chronoamperometry. Additionally, the QD layers were characterized by scanning electrochemical microscopy (SECM) indicating a decrease of the surface conductivity of GC electrodes.

Idioma originalInglés
Páginas (desde-hasta)133-140
Número de páginas8
PublicaciónJournal of Solid State Electrochemistry
Volumen25
N.º1
DOI
EstadoPublicada - ene. 2021
Publicado de forma externa

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