Fine tuning of emission through the engineering of colloidal crystals.

Université Bordeaux 1, Centre de Recherche Paul Pascal, 115 avenue Dr Schweitzer, 33600 Pessac, France.
Physical Chemistry Chemical Physics (Impact Factor: 4.2). 10/2010; 12(38):11993-9. DOI: 10.1039/c0cp00129e
Source: PubMed

ABSTRACT We describe the preparation and characterization of photonic colloidal crystals from silica spheres with incorporated luminescent [Mo(6)Br(14)](2-) cluster units. These structures exhibit strong angle-dependent luminescent properties. The incorporation of one or several planar defects in the periodic structures gives rise to the creation of a passband in the stopband. In the energy range of this passband, an increase of the emission intensity has been found.