Fine tuning of emission through the engineering of colloidal crystals.
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.
Dechézelles
Jean-François
JF
Université Bordeaux 1, Centre de Recherche Paul Pascal, 115 avenue Dr Schweitzer, 33600 Pessac, France.
Aubert
Tangi
T
Grasset
Fabien
F
Cordier
Stéphane
S
Barthou
Carlos
C
Schwob
Catherine
C
Maître
Agnès
A
Vallée
Renaud A L
RA
Cramail
Henri
H
Ravaine
Serge
S