English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/156968
COMPARTIR / IMPACTO:
Estadísticas
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:
Título

Mercury-Mediated Organic Semiconductor Surface Doping Monitored by Electrolyte-Gated Field-Effect Transistors

AutorQiaoming, Zhang; Leonardi, Francesca ; Casalini, Stefano ; Mas Torrent, Marta
Palabras claveHg2+ ions
Electrolyte-gated organic field-effect transistors
Redox reaction;
Solution shearing technique
Surface doping
Fecha de publicación23-oct-2017
EditorWiley-VCH
CitaciónAdvanced Functional Materials: 10.1002/adfm.201703899 (2017)
ResumenSurface doping allows tuning the electronic structure of semiconductors at near-surface regime and is normally accomplished through the deposition of an ultrathin layer on top or below the host material. Surface doping is particularly appealing in organic field-effect transistors (OFETs) where charge transport takes place at the first monolayers close to the dielectric surface. However, due to fabrication restrictions that OFET architecture imparts, this is extremely challenging. Here, it is demonstrated that mercury cations, Hg2+, can be exploited to control doping levels at the top surface of a thin film of a p-type organic semiconductor blended with polystyrene. Electrolyte- or water-gated field-effect transistors, which have its conductive channel at the top surface of the organic thin film, turn out to be a powerful tool for monitoring the process. A positive shift of the threshold voltage is observed in the devices upon Hg2+ exposure. Remarkably, this interaction has been proved to be specific to Hg2+ with respect to other divalent cations and sensitive down to nanomolar concentrations. Hence, this work also opens new perspectives for employing organic electronic transducers in portable sensors for the detection of an extremely harmful water pollutant without the need of using specific receptors.
Versión del editorhttp://dx.doi.org/10.1002/adfm.201703899
URIhttp://hdl.handle.net/10261/156968
DOI10.1002/adfm.201703899
ISSN1616-301X
E-ISSN1616-3028
Aparece en las colecciones: (ICMAB) Artículos
Ficheros en este ítem:
Fichero Descripción Tamaño Formato  
Qiao_AdvFunctMat-2017_postprint.pdf1,39 MBAdobe PDFVista previa
Visualizar/Abrir
Mostrar el registro completo
 

Artículos relacionados:


NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.