Vinyl Biphenyl based Dendron

Hybrid Organic-Inorganic Photoluminescent POSS Dentritic Materials

We have developed a a general strategy to engineer more efficient photoluminescent hybrid organic-inorganic nanometer scale photoluminescent materials. A series of chromophores altered with bulky groups were grafted on polyhedral oligomeric silsesquioxane cores used as a model of a nanometer scale silicon oxide interface. Photoluminescence quantum yields, steady state and time-resolved solution spectroscopy along with molecular dynamics investigation and electronic structure calculations on a family of this new material are reported highlighting an apparent contrast between free and confined chromophores relevant to the design of more efficient hybrid organic-inorganic nanometer scale photoluminescent materials for sensors and hybrid light emitting diodes.

Vinyl biphenyl POSS Dentritic Macromolecules

Work carried out by:

Pascal André,^a‡* Ge Cheng,^b‡ Arvydas Ruseckas,^a‡ Nicolas Vautravers,^b Tanja van Mourik,^b Herbert Früchtl,^b Joe A. Crayston,^b‡ Russell E. Morris,^b David Cole-Hamilton^b‡ and Ifor D. W. Samuel^1‡

^a School of Physics & Astronomy (SUPA), University of St Andrews, Fife, KY16 9SS
^b School of Chemistry (EaStChem), University of St Andrews, Fife, KY16 9ST
^‡ Organic Semiconductor Centre, St Andrews, Fife, UK KY16 9SS

Hybrid nano-Colloïds / Research & Achievements / Recent Works / Hybrid Organic-Inorganic Photoluminescent POSS Dentritic Materials