Proceedings of International Conference on Hybrid and Organic Photovoltaics (HOPV16)
Publication date: 28th March 2016
For more than a decade anodic TiO2 nanotubes layers (TNTL) have attracted the attention of many research groups, with more than 5000 publications in the 2009-14 period[1]. This interest bases on their optimal characteristics for different fields of applications ranging from biomaterials to water remediation and solar cells, and also due to their fast and easy synthesis processing. Pulsed galvanostatic anodization allows the modulation of the shape of TiO2 nanotubes resulting in a 3D nanostructure[2]. This 3D nanostructure can be tuned in order to control their optical properties[3][4]. In this contribution, we will present the obtained results on the synthesis and characterization of smooth TNTL and 3D modulated TNTL by potentiostatic and pulsed galvanostatic methods. The morphology (SEM), electrical and thermal properties by Kelvin probe and scanning thermal microscopy of the samples depending on their nanostructure will be discussed.
[1] K. Lee, A. Mazare, and P. Schmuki. Chem. Rev., 114, 9385−9454 (2014).
[2] J. Lin, K. Liu, and X. Chen, Small, 7, 1784–1789 (2011).
[3] M. Guo, K. Xie, Y. Wang, L. Zhou, H. Huang. Scientific Reports 4, 6442 (2014).
[4]J. Martín, M. Martín-González, J. F. Fernández and O. Caballero-Calero. Nat. Commun. 5:5130 (2014).
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