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Large directional conductivity change in chemically stable layered thin films of vanadium oxide and a 1D metal complex
Indexado
WoS WOS:000323578000011
Scopus SCOPUS_ID:84896060442
DOI 10.1039/C3TC31104J
Año 2013
Tipo artículo de investigación

Citas Totales

Autores Afiliación Chile

Instituciones Chile

% Participación
Internacional

Autores
Afiliación Extranjera

Instituciones
Extranjeras


Abstract



Electroactive hybrid and layered oxides and related materials where the inorganic phase is the host, offering the conductivity characteristics of semiconductors, have been used in thin film transistors and related electronic devices where the host-guest interaction offered conductivity with improved processability. We describe the synthesis and characterization of a nanocomposite that shows large conductivity anisotropy when deposited as a thin film. We prepared the material by inserting quasi 1-dimensional potassium tetracyanoplatinate metal complexes with insulating electrical properties in between stacked nanosheets of vanadium oxide xerogels. Detailed structural and compositional analysis using transmission electron microscopy and X-ray photoelectron spectroscopy confirms that the hybrid material forms from a topotactic reaction and the framework of the layered host oxide structure is maintained. The hybrid film demonstrates a similar to 1000-fold conductivity change between transport parallel and perpendicular to the film at room temperature. Temperature dependent transport measurements confirm Ohmic conduction perpendicular to the stack and small polaron hopping conduction parallel to the layering direction of the film. The conductivity anisotropy and simple synthesis demonstrate that nanostructured layered hybrids can provide alternative materials for thin film complementary logic and resistive memory.

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Scopus
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Publicaciones WoS (Ediciones: ISSHP, ISTP, AHCI, SSCI, SCI), Scopus, SciELO Chile.

Colaboración Institucional



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Autores - Afiliación



Ord. Autor Género Institución - País
1 Glynn, C. - Natl Univ Ireland Univ Coll Cork - Irlanda
University College Cork - Irlanda
Tyndall National Institute at National University of Ireland, Cork - Irlanda
Tyndall National Institute - Irlanda
2 Thompson, D. - Natl Univ Ireland Univ Coll Cork - Irlanda
Tyndall National Institute at National University of Ireland, Cork - Irlanda
University College Cork - Irlanda
Tyndall National Institute - Irlanda
3 PAEZ-CARRENO, JAIME EDGARDO Hombre Universidad Católica del Norte - Chile
4 Collins, G. - Natl Univ Ireland Univ Coll Cork - Irlanda
Trinity Coll Dublin - Irlanda
University College Cork - Irlanda
Trinity College Dublin - Irlanda
5 BENAVENTE-ESPINOSA, EGLANTINA JAVIERA Mujer Universidad Tecnológica Metropolitana - Chile
Centro para el Desarrollo de la Nanociencia y la Nanotecnologia - Chile
6 Lavayen, Vladimir Hombre Pontifica Universidade Católica do Rio Grande do Sul - Brasil
7 RADIC-FOSCINO, DEODATO Hombre Universidad de Chile - Chile
8 Holmes, J. D. - Natl Univ Ireland Univ Coll Cork - Irlanda
Trinity Coll Dublin - Irlanda
University College Cork - Irlanda
Tyndall National Institute at National University of Ireland, Cork - Irlanda
Trinity College Dublin - Irlanda
Tyndall National Institute - Irlanda
9 GONZALEZ-ROCHA, GERARDO ENRIQUE Hombre Centro para el Desarrollo de la Nanociencia y la Nanotecnologia - Chile
Universidad de Chile - Chile
10 O'Dwyer, Colm Hombre Natl Univ Ireland Univ Coll Cork - Irlanda
Univ Limerick - Irlanda
University College Cork - Irlanda
Tyndall National Institute at National University of Ireland, Cork - Irlanda
University of Limerick - Irlanda
Tyndall National Institute - Irlanda

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Financiamiento



Fuente
FONDECYT
CONICYT
PBCT
Science Foundation Ireland
MSI
Irish Research Council
Irish Research Council New Foundations Award
UCC Strategic Research Fund

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Agradecimientos



Agradecimiento
CG acknowledges support from the Irish Research Council from grant no. RS/2011/797. The financial support from FONDECYT grant 1131112, CONICYT grant FB0807-CEDENNA, and MSI grant P10-061-F is also acknowledged. DT acknowledges Science Foundation Ireland for financial support under Grant number 11/SIRG/B2111. VL acknowledges PBCT grant ACT027. COD was supported by Science Foundation Ireland under grant no. 07/SK/B1232a, the UCC Strategic Research Fund, and from the Irish Research Council New Foundations Award 2012.

Muestra la fuente de financiamiento declarada en la publicación.