Electron Transport in Two-Dimensional Arrays of Gold Nanocrystals Investigated by Scanning Electrochemical Microscopy

This article reports the use of the scanning electrochemical microscope (SECM) to investigate the electronic properties of Langmuir monolayers of alkane thiol protected gold nanocrystals (NCs). A substantial increase in monolayer conductivity upon mechanical compression of the Au NC monolayer is rep...

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Detalles Bibliográficos
Autores: Liljeroth, Peter, Vanmaekelbergh, Daniël, Ruiz Fernández, Virginia, Kontturi, Kyösti, Jiang, Hua, Kauppinen, Esko I., Quinn, Bernadette M.
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2004
País:España
Institución:Universidad de Burgos (UBU)
Repositorio:Repositorio Institucional de la Universidad de Burgos (RIUBU)
OAI Identifier:oai:riubu.ubu.es:10259/11104
Acceso en línea:https://hdl.handle.net/10259/11104
Access Level:acceso abierto
Palabra clave:Electrical conductivity
Monolayers
Nanoparticles
Redox reactions
Thin films
Nanotecnología
Electroquímica
Nanotechnology
Electrochemistry
Descripción
Sumario:This article reports the use of the scanning electrochemical microscope (SECM) to investigate the electronic properties of Langmuir monolayers of alkane thiol protected gold nanocrystals (NCs). A substantial increase in monolayer conductivity upon mechanical compression of the Au NC monolayer is reported for the first time. This may be the room temperature signature of the insulator to metal transition previously reported for comparable silver NC monolayers. Factors influencing the conductivity of the monolayer NC array are discussed.