Photoluminescence Changes Induced by Self-Organisation in Bridged Silsesquioxanes
Two organo-bridged silsequioxanes derived from the same molecular precursor were synthesized with completely different local structure, namely long-range ordering. The photoluminescence features (emission, excitation, and time-resolved modes) were studied in the temperature range 13-300 K and compared with those of the molecular precursor. The effects of the self-assembling of the nanobuild blocks on these emission properties were discussed in terms of the magnitude of the hydrogen bonds between adjacent organic groups.
Paula Maria Vilarinho
L. D. Carlos, R. A. S. Ferreira, S. S. Nobre, M. Wong Chi Man, J. J. E. Moreau, C. Bied, B. Pichon, "Photoluminescence Changes Induced by Self-Organisation in Bridged Silsesquioxanes ", Materials Science Forum, Vols. 514-516, pp. 118-122, 2006