Structural color tuning in a Ag/TiO2 nanoparticle one-dimensional photonic crystal induced by electric field

Eduardo Aluicio-Sarduy; Simone Callegari; Diana Gisell Figueroa del Valle; Andrea Desii; Ilka Kriegel; Francesco Scotognella

doi:10.1117/12.2251526

20 February 2017 Structural color tuning in a Ag/TiO₂ nanoparticle one-dimensional photonic crystal induced by electric field

Eduardo Aluicio-Sarduy, Simone Callegari, Diana Gisell Figueroa del Valle, Andrea Desii, Ilka Kriegel, Francesco Scotognella

Author Affiliations +

Proceedings Volume 10112, Photonic and Phononic Properties of Engineered Nanostructures VII; 101120Q (2017) https://doi.org/10.1117/12.2251526
Event: SPIE OPTO, 2017, San Francisco, California, United States

Abstract

We present the electric field-induced tuning of the light transmission in a photonic crystal device. The device, with alternating layers of Silver and Titanium dioxide nanoparticles, shows a shift of around 10 nm for an applied voltage of 10 V. An accumulation of charges at the Silver/TiO₂ interface due to electric field leads to an increase of the number of charges contributing to the plasma frequency in Silver. This results in a blue shift of the Silver plasmon band, with concomitant blue shift of the photonic band gap as a result of the decrease in the Silver dielectric function.

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Eduardo Aluicio-Sarduy, Simone Callegari, Diana Gisell Figueroa del Valle, Andrea Desii, Ilka Kriegel, and Francesco Scotognella "Structural color tuning in a Ag/TiO₂ nanoparticle one-dimensional photonic crystal induced by electric field", Proc. SPIE 10112, Photonic and Phononic Properties of Engineered Nanostructures VII, 101120Q (20 February 2017); https://doi.org/10.1117/12.2251526

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