Towards refractive index modulation in TiO2 by means of electrochemical anodization.

S. Liu (1) , C.C. Lin (1) , Jing Chie Lin (1) , S.L. Lee (1) , Christophe Couteau (2) , Gilles Lerondel (2)

1 NCU - National Central University [Taiwan]
2 LNIO - Laboratoire de Nanotechnologie et d'Instrumentation Optique

In order to demonstrate the feasibility of porous TiO2 multi-layers we address the possibility of color tuning of single thin films by means of varying the electrochemical anodization conditions (voltage and time). Ellipsometric data analysis using Bruggeman effective medium approximation confirms the interferometric nature of the sample color.

Domains: Physics [physics]; Physics [physics]; Chemical Physics [physics.chem-ph]

S. Liu, C.C. Lin, Jing Chie Lin, S.L. Lee, Christophe Couteau, et al.. Towards refractive index modulation in TiO2 by means of electrochemical anodization.. 216th ECS Meeting, Oct 2009, Vienna, Austria. pp.99-103, ⟨10.1149/1.3237016⟩. ⟨hal-02468291⟩