Synthesis of self-ordered and well-aligned Nb2O5 nanotubes

Year: 2014

Authors: Galstyan V., Comini E., Faglia G., Sberveglieri G.

Autors Affiliation: Sensor Lab, Department of Information Engineering, University of Brescia and CNR-INO, Via Valotti 9, 25133 Brescia, Italy

Abstract: In the present work we demonstrate the fabrication of self-assembled and highly aligned Nb2O5 nanotubes by means of electrochemical anodization of metallic Nb at room temperature. We have investigated the effect of anodization parameters (the type and the concentration of the electrolyte, the anodization voltage and the current) on the formation of Nb2O5 nanotube arrays. The structural properties of the nanotubes as a function of annealing treatment conditions (temperature and duration) have been studied. The current-voltage characterization of the samples in the dark and under UV light illumination has been carried out. The photocurrent of the Nb2O5 nanotubes has been improved by improving their crystalline performance.

Journal/Review: CRYSTENGCOMM

Volume: 16 (44)      Pages from: 10273  to: 10279

More Information: The research leading to these results has received funding from the Italian Ministry of Education through the project FIRB Rete Nazionale di Ricerca sulle Nanoscienze ItalNanoNet (Protocollo: RBPR05JH2P, 2009-2013), from Italian MIUR through the project FIRB RBAP115AYN Oxides at the nanoscale: multifunctionality and applications and from Region Lombardia (Italy) through the project Xnano.
KeyWords: Tio2 Nanotubes; Titania Nanotubes; Oxide; Surface; Anodization; Niobium; Arrays; Photodetectors; Temperature; Fabrication
DOI: 10.1039/c4ce01540a

Citations: 30
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