zur Borg, Lisa; Domanski, Anna L.; Breivogel, Aaron; Buerger, Mareike; Berger, Ruediger; Heinze, Katja; Zentel, Rudolf published the artcile< Light-induced charge separation in a donor-chromophore-acceptor nanocomposite poly[TPA-Ru(tpy)2]@ZnO>, SDS of cas: 71195-85-2, the main research area is polyvinyltriphenylamine terpyridine ruthenium complex zinc oxide.
The synthesis and characterization of a new donor-chromophore-acceptor system based on poly(vinyltriphenylamine) as the electron donor and a glycine-functionalized bis(2,2′;6′,2”-terpyridine)ruthenium(II) complex acting both as a chromophore and as an anchor group attached to ZnO nanorods as the electron acceptor are described. The TPA-containing block copolymer was synthesized by Reversible Addition Fragmentation Chain Transfer (RAFT) polymerization and the ruthenium complex glycine conjugates prepared by Solid Phase Peptide Synthesis (SPPS) were attached via post-polymerization esterification. GPC, NMR, IR and UV-Visible spectroscopy were used to characterize the multifunctional chromophore-donor polymer. Zinc oxide nanorods were functionalised with the block copolymer by multisite adsorption via the glycine COOH groups. The functionalised nanoparticles were well dispersible in organic solvents. Photoluminescence studies showed a complete quenching of the phosphorescence of the ruthenium chromophore (3MLCT state). Kelvin probe force microscopy (KPFM) was used to confirm that under continuous excitation of the RuII complex (1MLCT) the polymer corona develops a pos. charge and thus efficient charge separation between ZnO and the polymer is achieved.
Journal of Materials Chemistry C: Materials for Optical and Electronic Devices published new progress about Electron transfer (charge separation). 71195-85-2 belongs to class esters-buliding-blocks, and the molecular formula is C9H3F5O2, SDS of cas: 71195-85-2.
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