Advanced Functional Materials

Cover image for Vol. 25 Issue 32

18_18b/2008Inside Front Cover: Photoconducting Bragg Mirrors based on TiO2 Nanoparticle Multilayers (Adv. Funct. Mater. 18/2008)

Photoconducting Bragg mirrors are made by alternating layers of TiO2 nanoparticles of different size and aggregation state to create a periodic modulation of the refractive index. In this picture, a series of Bragg mirrors with different lattice constant, thus displaying different structural color, is shown with a TEM image of a cross section of a layer of TiO2 crystallites deposited on a silicon wafer in the background. This work, by Hernán Míguez and co-workers is described on page 2708.

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