Cover Picture: Fabrication of Stable Low‐Density Silica Aerogels Containing Luminescent ZnS Capped CdSe Quantum Dots (Adv. Mater. 15/2006)

Abstract Luminescent CdSe quantum dots 2.5 and 6.0 nm in diameter can be incorporated into low‐density silica aerogel matrices. In work reported by Stiegmann and co‐workers on p. 1965, aerogels are formed from the supercritical CO₂ extraction of an alcogel containing quantum dots surface passivated with 3‐aminopropyltriethoxysilane. The resulting aerogels, shown on the cover, are low scattering and display intense, stable luminescence.