Synthesis of mesoporous ITO/TIO2 electrodes for optoelectronics

Several optoelectronic applications require transparent and conductive "lms, usually deposited by RF- magnetron sputtering, interfaced with a TiO2 compact or mesoporous layer, deposited in subsequent processes. Here we report on the direct fabrication by RF-magnetron sputtering of mesoporous ITO/TiO2 heterojunctions, exhibiting enhanced charge-transfer properties. The mesoporous morphology was obtained by tuning the sputtering deposition parameters. Scanning Electron Microscopy provided a deeper insight into the electrode building, which resulted composed by a compact ITO layer, tapered with columnar ITO nanocrystals, completely covered with jagged anatase TiO2 cauli!ower-like structures. Such mesoporous electrodes exhibited enhanced electrochemical performances, compared to those of compact thin-"lm heterojunctions, due to the enhanced charge transfer at the ITO/TiO2 interface.



Titolo: Synthesis of mesoporous ITO/TIO2 electrodes for optoelectronics
Autori: Binetti, Enrico; El Koura, Zakaria; Bazzanella, Nicola; Carotenuto, Gianfranco; Miotello, Antonio
Autori Unitn: 
El Koura, Zakaria
Bazzanella, Nicola
Miotello, Antonio
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Titolo del periodico: MATERIALS LETTERS
Anno di pubblicazione: 2015
Codice identificativo Scopus: 2-s2.0-84916624229
Codice identificativo ISI: WOS:000345640300094
Digital Object Identifier (DOI): http://dx.doi.org/10.1016/j.matlet.2014.10.120
Handle: http://hdl.handle.net/11572/140565
Appare nelle tipologie:03.1 Articolo su rivista (Journal article)

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