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Annelies Vandendriessche Inge Asselberghs Koen Clays Mario Smet Wim Dehaen Thierry Verbiest Guy Koeckelberghs 《Journal of polymer science. Part A, Polymer chemistry》2009,47(15):3740-3747
A hyperbranched poly(arylene oxindole), a poly(methacrylate), and a dendrimer, to which the same nonlinear optical chromophore was attached via a small, rigid spacer, were prepared. The difference in hyper‐Rayleigh scattering intensities was measured and compared. From this study, it was concluded that the chromophores, and hence the functional groups in the macromolecule before functionalization, are orientationally correlated in the dendrimer, whereas they are not in the linear and hyperbranched polymer. More in particular, the chromophores in the dendrimer are fixed in a centrosymmetric way because of the globular structure, whereas there is no orientational correlation between the chromophores in linear and hyperbranched polymer. © 2009 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 47: 3740–3747, 2009 相似文献
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Mihaela Popovici Johan Swerts Kazuyuki Tomida Dunja Radisic Min‐Soo Kim Ben Kaczer Olivier Richard Hugo Bender Annelies Delabie Alain Moussa Christa Vrancken Karl Opsomer Alexis Franquet Malgorzata A. Pawlak Marc Schaekers Laith Altimime Sven Van Elshocht Jorge A. Kittl 《固体物理学:研究快报》2011,5(1):19-21
Crystalline rutile TiO2 films were grown by atomic layer deposition on oxidized Ru electrodes using a titanium methoxide as the metal precursor and O3 as the oxidant. A protective layer of ~0.3 nm TiO2 grown with H2O as the oxidant was first deposited in order to avoid etching of the Ru bottom electrode by the O3 used for the growth of the TiO2 (bulk) layer. Electrical evaluation of the capacitor stacks with TiO2 as dielectric, RuO2/Ru and Pt as the bottom and top electrodes respectively, resulted in superior characteristics of the rutile phase as compared to the anatase. (© 2011 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim) 相似文献