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231224s2014 xx |||||o 00| ||eng c |
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7 |
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|a 10.1021/la502944g
|2 doi
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|a pubmed24n0805.xml
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|a (DE-627)NLM241588405
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|a (NLM)25188446
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
1 |
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|a Boon, Florian
|e verfasserin
|4 aut
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| 245 |
1 |
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|a Synthesis of TiO2-poly(3-hexylthiophene) hybrid particles through surface-initiated Kumada catalyst-transfer polycondensation
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|c 2014
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Completed 21.05.2015
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|a Date Revised 30.09.2014
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a TiO2/conjugated polymers are promising materials in solar energy conversion where efficient photoinduced charge transfers are required. Here, a "grafting-from" approach for the synthesis of TiO2 nanoparticles supported with conjugated polymer brushes is presented. Poly(3-hexylthiophene) (P3HT), a benchmark material for organic electronics, was selectively grown from TiO2 nanoparticles by surface-initiated Kumada catalyst-transfer polycondensation. The grafting of the polymer onto the surface of the TiO2 nanoparticles by this method was demonstrated by (1)H and (13)C solid-state NMR, X-ray photoelectron spectrometry, thermogravimetric analysis, transmission electron microscopy, and UV-visible spectroscopy. Sedimentation tests in tetrahydrofuran revealed improved dispersion stability for the TiO2P3HT hybrid material. Films were produced by solvent casting, and the quality of the dispersion of the modified TiO2 nanoparticles was evaluated by atomic force microscopy. The dispersion of the P3HT-coated TiO2 NPs in the P3HT matrix was found to be homogeneous, and the fibrillar structure of the P3HT matrix was maintained which is favorable for charge transport. Fluorescence quenching measurements on these hybrid materials in CHCl3 indicated improved photoinduced electron-transfer efficiency. All in all, better physicochemical properties for P3HT/TiO2 hybrid material were reached via the surface-initiated "grafted-from" approach compared to the "grafting-onto" approach
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4 |
|a Journal Article
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1 |
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|a Moerman, David
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Laurencin, Danielle
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Richeter, Sébastien
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Guari, Yannick
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Mehdi, Ahmad
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Dubois, Philippe
|e verfasserin
|4 aut
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1 |
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|a Lazzaroni, Roberto
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Clément, Sébastien
|e verfasserin
|4 aut
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| 773 |
0 |
8 |
|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 30(2014), 38 vom: 30. Sept., Seite 11340-7
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
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| 773 |
1 |
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|g volume:30
|g year:2014
|g number:38
|g day:30
|g month:09
|g pages:11340-7
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|u http://dx.doi.org/10.1021/la502944g
|3 Volltext
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|d 30
|j 2014
|e 38
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|h 11340-7
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